Apparently Chausson say you can only fit a only a 95 Amp battery , if you fit a 100 amp or more you will invalidate Warranty !! I don't understand why only I have been told they only fit 95 amp batteries in Europe. Any ideas ?
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Maybe. But then shouldn't they state the amp limit and that a fuse of that size must remain in place? It could be as low as 25 amps.I can only guess they think their electrics can't take the current a larger battery can either demand or produce. It may not be anything to do with the battery being lithium, especially as lithium batteries have a BMS which can control the input and output current.
Probably. But just because a bigger battery could deliver a high current, it doesn't mean you'd use it. I've got 280Ah of lithium that'll pass 200A. But I've fused it so it can only take 70A or deliver 50A.Exisiting Wiring size ?
Have you also told your BMS to limit current to below these values?Probably. But just because a bigger battery could deliver a high current, it doesn't mean you'd use it. I've got 280Ah of lithium that'll pass 200A. But I've fused it so it can only take 70A or deliver 50A.
I've not got anything that pulls a lot of load. I've not got an inverter.Have you also told your BMS to limit current to below these values?
So what happens if you put two in, is that allowed?
I guess its also that the chargers may have to work at high output and therefore potentially be hotter for longer periods if the batteries are flat - that might shorten their lives a bit, especially in hot climates, so no worries in the UK then!Thinking about this a bit more.
Putting a bigger battery in would not matter at all to any circuits on the outputs of the batteries as all of them will draw the same load and be protected by a fuse anyway.
So all, if any, problems will be on the battery charging side. So what you would have to consider is, will the bigger battery that you propose fitting take a greater current from any or all of your charging units ?
As fitted our MH had a single 95Ah leisure battery. Without doing all the fancy calculations I looked at the size of cable going to it from the alternator and the on-board charger and they looked well thick enough to carry the current required to charge both batteries.
The solar panel is not an issue because it is limited in the current it can produce and as long as the cables from it to the batteries are heavy enough and the current output from the panel lower than the maximum charging current to the batteries then it will never exceed any safety factors.
That's what I thought, what's it got to do with them what you do with it, did you ask them or is it in the manual or what.If as your info suggests you have a 2017 van, then its long out of warranty anyway. The only warranty you'll have left is a damp ingress warranty.
Which dealer was that ?When new, my Chausson came with a 105ah battery fitted by the supplying Chausson dealer
5Ah wouldn’t make a big difference but if you are going to recommend a limit I guess you have to draw the line somewhere. The internal resistance of a LiFePO4 battery is very low, meaning that it will accept a much higher charge than a Gel one which might put a bigger strain on the original components. Many Li users introduce a B2B which regulates the flow of current (Amps) and the better ones can be set to match the limitations of the existing wiring, fuses and relays.Moving from a 95amp Gel battery to 100amp battery , would 5amps make that much difference ? although its a Lithium.
Tyne Valley Motorhomes.Which dealer was that ?