OK which battery brand?

[goneoff]

I need advice as to which pair of batteries I should install in our motorhome. Ideally I wanted 2 x Exide 142ah but they are too long. Trying to keep the amp hours as high as possible with a maximum length of 330mm narrows the field down to a handful; rendering the handful down of other questionable brands there are basically two 120ah batteries; a Enduroline EXV135 and a Lucas LX35MF from what I have read on various forums both have been described as budget batteries (whatever that means) which is a concern. So I’m looking to establish which one of the dubious pair to buy. Or alternatively if anyone knows a better wet battery at a similar or better amp hour then please let me know. Alternatively let me know which of the two battery brands I should buy. Someone suggested Leoch batteries but again I don’t know if they are any good. What I do know is that the battery industry is full of skullduggery and re-labelling. That’s why I need advice

 

[chaser]

We have always had good batteries at the right price from this firm. Give it a look to find the one you want.

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[ManTheVan]

A good rule of thumb is to compare weights of the various contenders. Generally, the heavier a lead-acid battery is, the more likely it is to be of better quality.

I’ve taken the plunge and gone for a LiFePO4 100Ah battery rather than getting another 110Ah lead-acid battery to increase our capacity. Went for an Ultramax from batterymasters.co.uk, which is owned by Baruch and was a helpful company to deal with.



It is significantly lighter than the L-A it replaces (less than half the weight) and can be discharged very deeply if necessary, without killing the battery. You’d need to make sure that your charger/solar controller/B2B have LiFePO4 profiles though.

 

[autorouter]

Trying to keep the amp hours as high as possible with a maximum length of 330mm narrows the field down to a handful; rendering the handful down of other questionable brands there are basically two 120ah batteries;

If you look at it from the point of view of keeping the USABLE amp-hours as high as possible you might get a different answer. Two 120Ah wet lead-acids will give you a usable capacity of 120Ah if you stick to the recommended 50% discharge limit.

Two 75Ah gel batteries will give you exactly the same usable capacity because they can be discharged to the 20% level. Two 100Ah gels will be correspondingly higher capacity, but probably no bigger than the two 120Ah wet lead-acids.

 

[Stealaway]

There are only a few manufacturers left most only make stickers including Lucas and Numax. Buy Hankook a top quality manufacture. I have two 130ah dual use batteries. Check the size.

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