Motorhome Leisure Batteries- Full charging & upkeep information

Obtained a motorhome, campervan or caravan? Wish to know how one can care in your home leisure battery, how one can cost it, keep it and customarily maintain it going, particularly in winter? Or fearful about it shedding or not holding cost? Right here’s every thing it is advisable to learn about your motorhome leisure battery.

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Table of Contents

Motorhome Leisure Batteries

Let’s be honest- most new motorhomers or campervanners don’t actually take into consideration their batteries till they’ve an issue. Both the ability goes, or the battery isn’t holding a cost or they arrive at their motorhome or camper after winter to seek out every thing is flat and there’s no technique to repair it.

If that’s you, don’t worry- you’re not alone. However a fundamental degree of battery upkeep is vital to maintain your leisure batteries wholesome and comfortable for his or her lifespan- and make that life span so long as it may be. Your motorhoming can even be a lot simpler for those who perceive what your leisure battery is there for and how one can assist it!

It will probably additionally assist in your yearly motorhome habitation test (or for those who do your individual) in case you have a fundamental understanding of the way it all works.

Motorhome leisure batteries for novices

So, let’s begin originally and go over some fundamentals.

In case you have a motorhome or campervan, you’ve most likely acquired each an engine starter battery (the one which begins your automobile and is often discovered within the engine bay) and a leisure or home battery.

NOTE: In case you are shopping for a brand new CARAVAN, they’re usually equipped with out a leisure battery, so you will want to purchase one earlier than your first journey.

The motorhome leisure battery is normally NOT within the engine, and is discovered someplace within the camper habitation space. Ours is beneath the driving force seat, however on our final van it was beneath the ground close to the oven. Examine your motorhome guide for those who’re unsure.

On this submit, we’re going to be focussing simply on the leisure battery, so that you shouldn’t must go wherever close to the engine bay! We’ll be speaking in regards to the fundamentals of leisure batteries, how to decide on one, how one can care and keep them (particularly in winter!) and what to do if they’re shedding cost, received’t cost or appear to be utterly lifeless.

Don’t worry- this submit isn’t for skilled electricians. You don’t want to grasp amp hours, volts or ‘deep-cycle’ with a view to care in your motorhome batteries. And no maths is required (okay, a teeny tiny bit may be- however I promise you are able to do it.)

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Why do you want a motorhome leisure battery?

The home leisure battery runs all the ability within the habitation space of your van, everytime you’re not plugged in to mains energy. It’s used for habitation lights, water, rest room, blown-air camper heating, 12v chargers and anything electrical.

IMPORTANT– the leisure battery solely provides 12v in your van. So, in case you are on battery energy, you CANNOT use your 240v (regular 3-pin plug) sockets. So no electrical kettles, or toaster, or microwave (until you might have a motorhome generator or an invertor- however that’s a submit for an additional day.)

So as to have the ability to present that energy, the battery ‘shops’ it. Consider it like a bucket of water. You have to put energy into the battery. When it’s full, no extra energy might be saved. Then, as you utilize the ability, it’s drained down. As soon as it’s gone, it’s gone till you replenish the ability.

The large distinction between your campervan leisure battery and the bucket of water is that you simply CANNOT utterly empty the leisure battery- doing this may kill it. In actuality, you may solely use about 50% of the ability in your leisure battery earlier than it is advisable to cease draining and begin recharging.

Can’t I simply plug into mains energy on a regular basis? Do I actually need a leisure battery in my motorhome?

You could possibly, however the different job of a leisure battery is to easy out irregularities within the energy. With out this, you possibly can find yourself damaging home equipment as a consequence of energy spikes or having home equipment which want fixed energy (like alarms or trackers) going on and off often as a consequence of energy fluctuations.

Nonetheless, for those who plan to spend most of your time in your motorhome, campervan or caravan on a campsite, you don’t want to purchase a top-of-the-range leisure battery as you received’t be placing it via as many cycles as somebody who primarily stays off-grid.

Why is your motorhome or camper leisure battery shedding cost?

The opposite factor to grasp is that the ability in your battery will not be like water in a sealed container. Identical to water in a bucket left exterior on a heat sunny day, the ability in your leisure battery will slowly… disappear (no, it doesn’t evaporate like water!)

It’s like once you get a static shock and your hair stands on finish. Ultimately, that vitality simply dissipates. The identical factor occurs to your motorhome batteries (each engine and leisure).

That’s why you usually return to your motorhome, camper or caravan after winter or a interval of inactivity and discover the batteries flat. Even for those who’ve turned every thing off and also you’re satisfied nothing is inflicting the ability to empty finally, over time, the battery will likely be totally discharged and/or lifeless.

However don’t worry- with correct upkeep and care, you may defend your batteries, even in chilly climate, and use them for a number of years.

motorhome storage

Distinction between an engine battery and a home leisure battery

The two varieties aren’t the identical and you can purchase the suitable battery for the job.

Engine starter batteries (or automobile batteries) have thinner plates and are designed for brief, sharp bursts of excessive energy with a view to crank your engine and get it going.

Leisure batteries are designed for sluggish launch over a chronic time frame, adopted by re-charging. That is known as ‘deep-cycling’. Leisure batteries are generally known as auxillary batteries too.

“Can I exploit a automobile battery as an alternative of a leisure battery?”

You can’t use a leisure battery in your engine (it doesn’t have the ‘oomphf’ to get the engine began), however you possibly can use an engine battery as a leisure for those who actually actually needed to. But it surely is not going to be wherever close to as environment friendly and we don’t advocate it.

There’s a sort of battery which may do each jobs (an AGM battery), but it surely’s not generally used for motorhomes.

What number of leisure batteries do you want in your motorhome or campervan?

Nice question- and the straightforward reply is, it depends upon your van and the way you propose to make use of it.

On our final motorhome, we had an electrical mattress. We liked the concept of this, as a result of it made life simpler, however, in actuality, that factor was stupidly power-hungry. For that reason, we determined to suit a second leisure battery into the motorhome (and it’s one of many many causes we determined to simplify and downsize our motorhome.)

IMPORTANT: You MUST solely put a leisure battery within the acceptable battery compartment. If there isn’t house for a second battery, you shouldn’t match one. Additionally, you will want to declare becoming a second leisure battery to your insurance- they could require you to get it professionally checked.

On our newest van, and in a number of vans we’ve used, there has solely been one leisure battery- and it’s been completely wonderful. We love going motorhome wild tenting, and keep off-grid away from campsites as usually as we are able to, and we nonetheless don’t really feel the necessity for a second leisure battery (though we do have a photo voltaic panel, which makes an enormous distinction.)

Motorhome wild tenting guides for the UK & Europe

Motorhome wild parking guide

In fact, the extra batteries you might have, the LONGER you’ll have battery energy for. Be aware that I say longer, no more. You may’t match 20 12v leisure batteries and out of the blue have 240v energy.

How lengthy ought to a motorhome leisure battery final?

This can be a widespread query, with two attainable solutions.

Do you imply how lengthy can you utilize electrical gadgets in your camper earlier than the battery ought to not be used? That depends upon the scale of your battery and the way a lot energy you’re utilizing. The extra you might have switched on, and the extra ‘power-hungry’ the equipment, the faster the battery will drain.

The quantity on the battery (for instance, ‘110’) refers to ‘Amp-hours’ (Ah) which is the capability of the battery- or how a lot energy it will possibly retailer. In easy phrases, it might provide 1A for 110 hours or 10A for 11 hours.

Or do you imply how lengthy must you maintain a leisure battery earlier than changing it for a brand new one? The lifetime of a leisure battery depends upon a number of issues:

  • how ceaselessly it’s discharged
  • how deeply it’s discharged
  • how rapidly it’s recharged

To ensure that your battery to final so long as attainable, it is advisable to maintain it in an excellent state of cost. If it discharges to too low a degree and is left for weeks (and even months throughout winter) with out being recharged, then it should most likely die. And also you want a brand new one.

With correct care, you may count on a motorhome leisure battery to final round 5 years earlier than it ought to be changed. In fact, if issues go mistaken or aren’t maintained, you possibly can find yourself shopping for a brand new leisure battery yearly!

Forms of motorhome leisure batteries

There are various sorts of leisure batteries, and also you’ll hear all kinds of thrilling phrases thrown about like ‘lead-acid’, ‘moist batteries’ and lithium ion. Let’s take a look on the choices.

Lead-acid leisure batteries

The commonest type of leisure battery in a motorhome or camper is a lead-acid (though lithium ion is rising in popularity). These are additionally known as ‘moist’ batteries as a result of… they’ve liquid inside them.

Lead acid batteries will self-discharge over time. The pace of this depends upon make, age and so forth. You want to have the ability to maintain any eye on electrolyte ranges, and prime up as obligatory.

You may get ‘open’ and ‘sealed’ lead-acid batteries. Open are the sort it’s important to prime up. Sealed are the ‘maintenance-free’ ones (extra on these beneath.)

Lithium ion leisure batteries

Lithium batteries are one other type of deep cycle battery. They’re totally self-contained (upkeep free) and have their very own cost supervisor. As a result of they don’t have lead, they usually weigh round half as a lot as an equivelant lead-acid battery- this may actually assist along with your motorome payload.

They can be discharged (totally) and quickly recharged whereas retaining a secure voltage degree. They’re nice for motorhome house owners who use their automobiles ‘off-grid’. They don’t self-discharge, are largely maintenance-free and work properly alongside an inverter.

Nonetheless, they’re expensive- as a lot as 5 instances the price of an equal, good high quality, lead-acid battery

Motorhome touring in Spain- Cabezo Negro
How usually you discharge and recharge your motorhome leisure battery could make a distinction!

Different sorts of leisure batteries

  • AGM batteries – Absorbent Glass Mat batteries have matting between the plates that filter the sulphuric acid contained in the battery, making it extra resilient and in a position to face up to a better variety of charging cycles than a typical lead-acid. They can be utilized as each starter and leisure batteries. The draw back is that they’re much costlier to purchase.
  • Gel batteries – These are utilized in automobiles with a excessive threat of harm or crashing, akin to quad bikes or jet skis. They use gel slightly than acid, which reduces the chance if they’re broken in an accident. Some overseas manufacturers of motorhomes or campers at the moment are fitted with these.
  • Upkeep-free batteries – Typical batteries have detachable caps to permit the acid ranges to be checked and topped up with deionised water. A brand new choice is a maintenance-free battery, which is a sealed unit and can’t be topped up, however doesn’t should be, as a result of method it’s charged.

Shopping for & Selecting a motorhome or camper leisure battery

If you end up needing to purchase a leisure battery for a motorhome, campervan or caravan, it may be slightly overwhelming.

As a tough information, the heavier the battery is, the extra lead it incorporates= capacity to carry a bigger capability of cost. If you need a deep biking leisure battery (which you most likely do) a heavy battery is an effective place to begin.

If you’re going to be spending most of your in a single day stops on motorhome membership campsites with mains hookup, a reasonable battery is perhaps all you want. When linked to a mains provide, the battery is then solely there to ‘easy out’ the 12V output from the camper’s built-in charger.

Nonetheless, for those who plan to make use of CS/CL websites with out electrical hook-up or need to keep off-grid, an excellent high quality, high-capacity battery is important. Additionally, for those who like to remain in a single place for some time (and subsequently the alternator isn’t recharging the battery), you’ll want an excellent leisure battery for that too. Solely purchase batteries which were manufactured within the final 12 months- previous batteries might have already got sulphur corrosion.

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In addition to selecting the right mannequin, you additionally must be sure to aren’t being offered a starter battery rather than a leisure battery.

The best choice to make sure you get a leisure battery appropriate for a leisure automobile is to purchase one from the Verified Leisure Battery Scheme.

Nationwide Caravan Council Verified Leisure Battery Scheme

This scheme was arrange by the Nationwide Caravan Council to present house owners peace of thoughts in regards to the high quality of their battery. In case you purchase a leisure battery which shows the scheme’s emblem, then it has been deemed dependable and match for goal by the NCC.

All verified leisure batteries will show the scheme’s emblem in addition to which class it falls into.

NCC accreditation
NCC Caravan and Motorhome Leisure Battery Verification Scheme

How are leisure batteries categorised beneath the NCC scheme?

There are three classes of verified leisure battery:

  • Class A – Excessive storage capability batteries to be used by caravan and motorhome customers preferring to function away from {an electrical} hook-up level (individuals who do quite a lot of off-grid tenting)
  • Class B – Designed for customers who use electrical hook-up on the vast majority of their journeys, but additionally require better energy capability. Gadgets akin to motor movers (for caravanners) are more likely to require a Class B battery even when electrical hook-up is used
  • Class C – Verified batteries appropriate to be used when electrical hook-up will not be out there for a short while solely

Are all leisure batteries coated by the scheme?

At current, just a few producers are included. Extra are anticipated to affix within the close to future, and the NCC will publish updates as and when acceptable. Yow will discover out extra here.

What impacts a leisure battery’s efficiency?

There are various issues which may have an effect on the efficiency and lifespan of a battery.

  • Age – Most batteries have a marked lower in efficiency after 5 years.
  • Measurement – Clearly, the larger your battery (in Ah, not bodily dimension), the longer you should use your home equipment for.
  • Consumption– Having stated that, for those who’re operating quite a lot of electrical home equipment without delay, you’ll drain the battery quicker and it’ll should be recharged sooner and rather more usually. The extra you do that, the extra you degrade efficiency and lifetime of the battery.
  • Temperature – Batteries hate chilly. The colder the temperature, the more serious the battery goes to carry out. They actually do sulk. In case you test your battery, you’ll see the ‘amp hours’ score will likely be based mostly on a loopy heat temperature of round 25c, with every diploma decrease inflicting a 1% drop in efficiency. For example, a 110Ah battery which is working in 15c temperature will really solely carry out as a 100Ah. If that’s not purpose sufficient to go spend your winters in Spain, I don’t know what’s!

The actual fact of the matter is, you are able to do calculations all you want, however at all times err on the aspect of warning and assume it is advisable to recharge your leisure battery extra ceaselessly, and for longer, than you may assume.

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Taking care of your Leisure Battery

So, in addition to a bucket of water, consider your battery like a pampered canine. It desires to be heat (however not TOO heat), dry, given consideration, fed usually and given plenty of day without work to sleep. (I’ve a cocker spaniel curled up on my lap proper now and consider me, the analogy is working!)

Listed below are some tricks to get essentially the most out of your leisure battery.


  • Cost your battery after buy. Keep in mind, they’re discharging whereas simply sitting there on the shelf in Halfords.
  • Be sure you set up the battery appropriately, preserving it upright and correctly secured (most motorhomes have straps for this. Use high-quality clamps for an excellent connection.
  • Hold the terminals clear and free from corrosion. Some folks add a lightweight coat of vaseline/ petroleum jelly- we don’t do that however we do test them often.
  • Be sure you know which home equipment are always drawing on the battery. Trackers, alarms or safety, rearview cameras, wifi dongles or the clock on the dashboard are all widespread culprits.
  • Usually test the water ranges within the battery. You do that by unscrewing the caps and ensuring the electrolyte degree covers the lead plates. If not, prime up with deionised water as required. All the time put on full security gear when inspecting and sustaining the battery– that stuff is corrosive!
  • Be sure that the fuel aid tube stays securely in place.
  • Recharge the battery as soon as it reaches 50% energy. By no means enable a battery to utterly run down as this may kill the battery/ drastically cut back the lifespan
  • In case you aren’t going to be utilizing the battery for some time, give it a correctly good cost after which retailer it in a cool atmosphere with an acceptable charger. You may go away within the van in case you have an clever charging system or a trickle charger.


  • Go away your battery in a discharged state for a chronic time frame In case you’ve been utilizing the battery, be certain it’s charged up once more earlier than you permit it in storage/ unused. In case you don’t do that, a white deposit will type on the plates and the battery will likely be unusable (that is known as sulphation)
  • Over-charge your leisure battery. A completely charged 12V battery ought to have a voltage of 12.7V. Overcharging might be simply as unhealthy as undercharging for killing off a battery.
  • Over-discharge your battery. If the voltage falls to 11.70V cost instantly! If it will get a lot decrease, you might not have the ability to reserve it.
  • Reverse the polarity in your charging leads- this may injury the battery
  • Let something fall throughout the battery terminals. A 12V battery is unlikely to trigger electrocution, but when the terminals or the cables are shorted-out, it will possibly trigger a hearth in your motorhome.
  • Overlook that the stuff in a lead-acid battery is ACID. I’ve seen it burn via denims when my husband by chance spilt some. Watch out and maintain properly away from children and pets.
  • retailer your battery wherever too heat, or purchase a radiator, or in direct daylight

Sustaining your leisure battery throughout Winter

Or, extra usually “My motorhome has been in storage for winter. Why is the battery now flat?”

Prepare RV motorhome or campervan for winter storage- winterizing tips for campers and leisure vehicles
Caring in your motorhome in winter- take care of your leisure battery

Sadly, most individuals solely uncover they’ve an issue with both their starter battery or their leisure battery after they return to their automobile after a number of months. Usually that is after winter (though on this age of worldwide lockdowns and pandemics, you’ll most likely not be utilizing your motorhome as a lot as you deliberate!)

The double-trouble is that you’ve got each lack of use (time whereas the battery quietly discharges) and chilly (which makes the battery depressing.) The 2 collectively imply that the battery discharges extra rapidly, and is much more reluctant to recuperate afterwards.

Listed below are some ideas for caring for and sustaining your leisure battery over winter:

READ MORE: Full checklist of every thing it is advisable to do to arrange your motorhome for winter storage

  • Give it an excellent cost earlier than you set it away for winter
  • Go away it with some type of trickle charger, however leaving it plugged into mains for months may injury the battery too. (The usual on-board charger in lots of motorhomes could cause over-charging)
  • In case you have an clever battery charging unit (which displays the battery and adjusts charging voltage and present, you may go away that plugged in all winter.
  • In case you are unable to connect a charger completely, both cost your leisure battery as soon as a month or take away it from the automobile, deliver it dwelling and put it on cost. In fact, watch out if this implies your alarm/ tracker turns into disabled- learn extra about motorhome safety right here
  • Be sure that it doesn’t get too chilly. In case you have inside battery storage within the motorhome, it ought to be okay until it’s REALLY chilly, however in case you have exterior storage you may need to take away it to keep away from injury.
  • In case you are storing the van at dwelling and have an influence provide, you may put it on a timer (4/5 hours a day) so it doesn’t overcharge
  • You should use a photo voltaic panel to offer cost to your battery. Simply remember that photo voltaic panels are much less efficient in winter (weaker daylight) and in addition for those who use a motorhome cowl it might cowl the photo voltaic panel, making it ineffective.

How one can cost a leisure battery on a motorhome or camper

Most motorhomes and campers have a number of methods of charging the leisure battery:

  • Through the mains when on hook-up (battery charger)
  • Utilizing the engine (alternator) when on the road- that is usually known as ‘split-charge’
  • Photo voltaic panel
  • Generator
  • Wind mills (these are widespread on boats, however much less widespread on motorhomes or campers.)

How one can cost a leisure battery from mains/ electrical hook up

This one is simple. Offering you might have a battery charger (extra on these beneath), you simply plug within the mains, flip it on if not already, and chill out. It’s that straightforward on most trendy motorhomes and campervans.

How one can cost a leisure battery whereas driving

Keep in mind, it should take time to recharge a battery. Working your engine for quarter-hour will not be going to be sufficient.

Additionally, the alternator was not designed for leisure batteries- it was designed for starter batteries and that’s its major focus. So it is advisable to enable time for the starter battery AND then the leisure battery to be recharged (it’s not linear like that, however all it is advisable to know is it wants time!)

Additionally, because the battery voltage will increase (it will get extra charged), the present offered by the alternator will reduce- because it must for the engine battery. So an alternator is unlikely to totally cost a leisure battery.

Discharge charges and maths. (DO NOT PANIC…)

For example, in case you have a 100Ah (amp hour) battery (let’s ignore the temperature and simply assume it’s working to 100), and also you discharge (use) 50%, it is advisable to change 50Ah

Let’s say the engine alternator has sufficient to present 5A to the leisure battery. It’s going to take 10 hours to recharge. That’s 10 HOURS of driving. Continuous.

In case you have a much bigger battery, or two leisure batteries, you will want even longer.

Fortunately, many motorhome on-board battery chargers may give 15-20amps, so it takes rather a lot much less time- 2 or 3 hours. Let’s take a look at these in additional element.

Motorhome leisure battery guide
Motorhome leisure battery information

Motorhome Battery chargers defined

Utilizing the mains to cost the leisure battery (and generally the engine battery) is widespread in most motorhomes, however you will want a battery charger. There are a number of sorts of charger available- they do totally different jobs.

Primary chargers

The best is a fundamental unit which supplies a set output, normally round 13.8 volts. These fundamental chargers are hardly ever utilized in motorhomes as of late, as a result of multi-stage chargers aren’t rather more costly and are a lot better for the well being and lifespan of your battery. Primary chargers aren’t designed to be left linked long-term.

Multi-stage charger

A multi-stage charger supplies cost at totally different voltages and currents relying on the state of cost of the battery. These are additionally known as upkeep chargers, though not many are designed to be left linked permanently- you need to use a timer or disconnect and reconnect often.

Normally there are 3 phases:

  • Bulk cost mode: offers a most voltage and present to recharge the battery rapidly. This normally takes it to round 80% full.
  • Absorption: Offers a relentless voltage, however reduces present. Takes it to almost full cost.
  • Float cost: Offers diminished voltage and low present to maintain it close to totally charged with out injury.

You may get multi-stage expenses with much more ranges, however the tough concept is similar.

Do not forget that a battery wants a charger with an output of at the least 10% of the battery’s capability. For instance, a 100Ah battery will want at the least a ten amp charger. Any much less will cut back the capability.

How large a battery charger do you want?

The larger the charger (16A as an alternative of 4A), the faster it should cost up your battery. In case you bear in mind our earlier instance about needing to exchange 50% of a 100A battery, a 16A charger would do it in simply over 3 hours, whereas a 4A one would wish 12.5 hours.

Photo voltaic Energy

Photo voltaic panels are available in two major varieties: monocrystalline and polycrystalline. The main distinction between the 2 varieties is dimension – a poly panel will usually be about 5% bigger than a mono for a similar quoted output.

Photo voltaic panels might be inflexible or flexible- for vans we advocate inflexible as they’re extra dependable and don’t usually should be walked on.

How large a photo voltaic panel do I would like?

The reply to this has nothing to do with the scale of your motorhome leisure battery. It has to do with how a lot vitality you propose to make use of. A small campervan with just a few LED lights will want MUCH lower than an 8m motorhome with a fridge, heating, a 12v motorhome TV and who desires to cost plenty of electrical gadgets. The commonest dimension of photo voltaic panel is 80- 100W.

Additionally, photo voltaic panels are hardly ever nearly as good as they are saying they’re. For example, a 100W panel might technically produce round 8A, however in actuality it is going to be that good – 5 – 6 amps is perhaps extra practical. On cloudy days it’s even much less.

Motorhome using solar power to charge the leisure battery
Motorhome utilizing solar energy to cost the leisure battery

Regulator for solar energy

In case you have a photo voltaic panel, you will want a regulator to manage the cost going into the battery.

A typical photo voltaic panel in full daylight might produce round 22 volts, which is just too excessive for a 12-volt battery. The job of the regulator is to cut back this to a secure charging degree.

There are various totally different photo voltaic regulators out there. Cheaper choices embrace easy break up cost or fundamental mounted voltage charging techniques; multi-stage charging is best for those who can.

Some electrical items (akin to Sargent) are in a position to take the ability from the photo voltaic unit and to up each the leisure and engine batteries as required.These techniques usually have a most photo voltaic wattage that they will deal with, so be sure that the panel you select doesn’t exceed it.

Unhealthy odor when charging

Sometimes, you may expertise a ‘rotten egg’ odor when your battery is recharging. This normally signifies that the battery is being overcharged. The odor comes from gasses being emitted. These gasses might probably ignite and trigger explosions.

In case you get this odor, test if the battery feels sizzling to the contact. If is does, the battery is being overcharged and might be irreparably broken. Even with out a odor, pay attention to the temperature of your battery whereas charging as a sizzling battery usually means there’s a drawback.

All the time have a window open to permit gases to flee whereas the battery is charging.

DO NOT disconnect the battery from the charger whereas it’s plugged into the mains- this might trigger a spark. Disconnect the mains, then take away the charger.

How do you repair a battery which received’t maintain a cost?

A trickle charger is one of the simplest ways to attempt to repair a leisure battery that won’t maintain a cost. Except it’s been run too low, during which case, see beneath.

How do you revive a leisure battery?

In case you’ve by chance run your battery too low, sluggish cost it for at the least 24 hours and see if it revives. You are able to do this by way of a battery charger or plugging the motorhome into the mains.

Take the battery out of your camper, join it to an honest battery charger, go away it on trickle cost for a few days (3-4 amps),then test the voltage.

If it’s not rising, the battery might be unfixable and you will want to exchange it.

Checking a battery’s cost degree

Many motorhome leisure batteries have a lightweight or show to indicate the cost degree. They will not be 100% correct, but it surely gives you a tough concept.

A hand-held unit is usually extra correct, however pointless in most conditions. In case you use a hand-held meter, 12.7+v means totally charged, whereas 12v or beneath means discharged. 12.4v is about 50%

You too can use a hydrometer to measure the electrolytes within the cells. The studying ought to be between 1.1 (discharged) and 1.28 (totally charged).

Earlier than a studying, flip off all electrical home equipment, together with alarms, fridges and clocks that run off the battery. Failure to take action will lead to an inaccurate studying. Additionally, don’t do a check for 4 hours after driving or utilizing a battery charger- a not too long ago used battery will give the next studying

Secure dealing with of a Lead Acid battery

Battery fuel is explosive. If it ignites, it will possibly trigger burns or extreme accidents. ies and flammable and lead-acid is corrosive. Earlier than you go wherever close to your lead-acid battery, do the next:

  • Put on acceptable protecting clothes, gloves and eye-wear. Be warned- the acid can injury clothes
  • All the time take away the adverse terminal first when disconnecting a battery
  • By no means smoke or have a unadorned flame close to a battery
  • Sparks can generally happen when connecting up a battery and good high quality clamps are wanted. Non permanent crocodile clips, usually equipped with battery chargers, aren’t appropriate for everlasting connections.

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Got a motorhome, campervan or caravan? Want to know how to care for your leisure battery, how to charge it, maintain it and generally keep it going, especially in winter? Or worried about it losing or not holding charge? Here's everything you need to know about your motorhome leisure battery.

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