10-year Life & 6000+ CyclesCloudenergy 24V 300Ah LiFePO4 Battery contains 6000+ deep cycles each lithium battery can run for more than 10 years which is 3 times longer cycles than other AGM batteries on the market.Grade A LiFePO4 CellsHighest-level safety based on UL Testing Certificate for the cell inside the battery with higher energy density more stable performance & greater power.Built-in 200A BMSProtect from overcharge over-discharge overcurrent and short circuits with an excellent self-discharge rate.Support in Series/ParallelOur LiFePO4 batteries can be connected in parallel and in series for larger capacity and higher voltage. We suggest that the Max connection in series is: 2pcs batteries to 48V and the Max connection in parallels is: it can connect multiple batteries and no more than 10 pcs in parallel. Products of different manufacturers cannot be connected in series or in parallel. When the batteries are used in parallel or series the voltage must be the same.Wide ApplicationThe 24V 300Ah LiFePO4 battery has 7680Wh energy and 5120W max load perfect for trolling motors RVs campers marine travel trailers solar power systems motor homes UPS off-grid etc.