Power Queen LiFePO4 Lithium Battery 12V 50Ah Deep Cycle 640Wh ,with 50A BMS for Camping,RV, Fish Finder,Marine Boat

【 1/3*Impeccably Lightweight & 100% Capacity Usage】Our 50Ah lithium battery weighs only 11.57 lbs, which is only 1/3 of the weight of 50Ah lead-acid battery, easy to move and install. And our LiFePO4 battery can charge/discharge fully of the capacity, providing astronomical boosts in run-time compared to only 50~70% capacity usage in Lead Acid. 【BUILT-IN 50A BMS & 2-Hour Fast Charging】Our 12.8V 50Ah Lithium battery build in 50A BMS, which can prevent the LifePO4 battery from the most common issue causing of battery failure, such as overcharge, over-discharge, over-current, overheating, short circuit. The BMS also support 0.5C (25A) charger that needs only 2 hours to charge 50Ah battery fully compared to Lead Acid needs 10~11 hours to fully charged which only support 1A~10A charger. 【Extendible Storage & Widely FlexibleUse】POWER QUEEN 12.8V 50Ah battery support up to 4 in series or 4 in parallel (Max 4S or 4P) to get more capacity (50Ah , 100Ah, 150Ah, Max.200Ah) and higher voltage (12.8V, 25.6V, 38.4V, Max.51.2V); Widely use such battery system in most areas such as: RV, Solar, Household Battery, Off-Grid and Trolling Motor and so on. 【Longer Usage Life: 10-Year】POWER QUEEN LiFePO4 battery provides 4000 cycles & a 10 years lifetime compared to 200 - 1000 cycles & a 3 years lifetime in typical Lead Acid batteries. Our lithium batteries can be fully charged without risk and maintain the capacity with low self-discharge rate, you can use the battery as you want even though put it aside for a long-time storage. Operating Temperature (Charge): 0℃~50℃ Operating Temperature (Discharge): -20℃~60℃ Storage Temperature Range: -10℃~50℃ Type:Rechargeable battery Chemical Composition:Lithium Iron Phosphate (LiFePO4) Energy: 640Wh Buil-in BMS: 50A Max. Continuous Load Power: 640W Max. Continuous Charge Current: 50A Max. Continuous Discharge Current: 50A Waterproof Level: IP65