Nubo
Well-known member
hornstudio said:there is much much space for a large battery if you throw out the plastic battery carrier. it gives you space for a 280x160x200mm battery which may have 72Ah, insteaf of the tiny stock 36Ah battery. wouldnt it be nice to help out the main battery not having to recharge the 12V battery all the time? wipers, vent, lights, sound system... costs a lot of electricity.
It doesn't work that way. Whatever 12V power you use is eventually replaced by the main pack, regardless of how large the 12V battery is. A larger 12V may result in shallower cycles which would be better for the life of the 12V, and of course will give you more reserve time. But it won't reduce the load on the main battery.