12V 100Ah LiFePO4 battery is Aolithium’s best seller. It can reach 4000+ deep cycle at 90% DOD. It is the best choice as a deep cycle marine battery, and also the best trolling motor battery. You can connect the batteries in parallel or in series to match your needs. This battery is also the most professional lithium battery for RV. battery built-in programmable BMS, can be high and low temperature protection of the battery. You can use the batteries with solar panels as backup energy storage for your home. Aolithium lithium 12v battery is very light weight, easy to carry, usually used in RV, camping, fishing boats, etc. You can use multiple batteries to form a battery pack as a back-up energy storage system similar to a powerwall in general.