Hi, I need a leisure battery, this is a pic of my starter battery... What leisure battery should I get e.g 70ah, 640a. Thanks Sent from my MAR-LX1A using Tapatalk
Starter battery doesn't have any relevance to your leisure battery requirements. You want one that is low enough to fit under spare wheel store and prefer with negative terminal under said spare wheel store. Capacity is down to your usage... whether you prefer offgrid or on hookups to camp.
Depends on a) do you have a clamp to hold the battery in place b) how long your cables are? Typically, folk go for negative to the right hand side so that the positive terminal is not under the spare wheel well where it could move and cause a short. The battery really should be clamped, either way. If it is clamped then you could extend your cables and widen the choice of battery as it's more common for the positive terminal to be on the right.
90amp minimum for the leisure and the capacity has no relation to your starter battery, the most important fact being it fits . Mine's 100amp and i don't have a spare wheelwell so could probably get a bigger battery in there but found i don't really need the extra capacity - if it ain't broke etc etc ... Sent from my SM-G960F using Tapatalk
If your starter is AGM technology like the picture then if you have a split charge relay you need AGM leisure battery to match the starter.. Neither will charge to 100% on a bus as the regulator voltage is slightly low. 14.2V for wet cell and 14.2V provided by stock alternator regulator .. vs 14.4 volts required for AGM. But it will sort of work if both are AGM. If you have a standard wet cell starter battery then match with wet cell leisure battery with a split charge relay.. Dont mix as the AGM will definitely not charge properly alongside a wet cell type.. There is a form factor for leisure batteries that fits under the spare wheel well, provides 100AH capacity .
What are you planning to run off it. Is your fridge a compressor type or thermal? Led lights and usb chargers use very little power. You only get to use half the rating of the battery. 12.1V is 50% discharged. Don't go huge just for the sake of it as its all extra weight for Itailian hills.
