Power Queen 12.8V 50Ah LiFePO4 Battery, 640Wh Backup Lithium Battery, Over 4000+ Rechargeable Cycles, Lightweight Replacement Battery for SLA, Widely Used in Wireless Lawn Mover, Electric Scooters

• 【Power Queen Upgraded 12.8V 50Ah Pro LiFePO4 Battery】Ultra portable and lightweight with size(LWH): 7.7 * 6.5 * 6.6 inches. Weight at only 11 LBS. The New 12.8V 50Ah Pro LFP battery has the handle as well for your convenience. The portable size fits in Group 24 /27/31 battery box perfectly.
• 【 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. 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
• 【Extendable Storage & Widely Use】The 12.8V50Ah LiFePO4 battery can be connected in parallel & in series for larger capacity. Allow being extended up to 4 in series or 4 in parallel to get Max 200Ah capacity or Max 48V(51.2V) voltage. Widely used in most areas such as RV, Solar, Household Battery, Off-Grid and Electric Scooter, Electric Handicap and so on. Note: The battery cannot be used as a starting battery. If you are not sure that, please contact customer service for relevant information
• 【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
• 【Warm Tips】① This Battery is an energy storage battery rather than a start-up battery, we do not advise using it to start engines or golf carts. ② If OT terminals are attached directly with screws and their thickness is less than 2mm, please add gaskets to ensure secure attachment and prevent loosening or overheating. The same precaution applies when using clamps
• 【UL2271 Certification】This product passes the UL2271 certification for micromobility devices.

To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.

• Question : What is the depth of discharge of the battery?
  Answer : The depth of discharge of the battery is about 100%.
• Question : What is the life of this battery?
  Answer : The battery has a 10-year life.
• Question : What are the applications that can be used for this battery?
  Answer : This battery can be used for home solar system, emergency backup power system, and yachts trip.
• Question : Can you jump start a car with this?
  Answer : There will be no damage jumping a car from this battery. Only part that is at risk is the dead lead acid battery, that likely needs replacing regardless.
• Question : What charger to use for 24V 50Ah battery system?
  Answer : To charge 24V 50Ah battery system, the DC charging voltage should be between 28.4V~29.2V, and charging current less than 50A.
• Question : Could the 300ah 12v be used to start a 3 cylinder 23hp diesel engine?
  Answer : Our battery is not suitable for use as a start-up battery. It is more suitable for house batteries.
• Question : Is there a low-temperature cut off?
  Answer : The 12V190Ah battery does not have a low-temperature cut-off function. However, the 12V100Ah and 12V200Ah have an auto-heating function.
• Question : What is the maximum draw the 190ah or 200ah model can handle?
  Answer : The 12.8V 190Ah can handle a 150A max. continuous charge/discharge current, while the 12.8V 200Ah can handle a 100A max. continuous charge/discharge current.
• Question : Is there an app for BMS?
  Answer : The BMS does not have Bluetooth connectivity in the 300 AHr battery, so there is no app for BMS monitoring.
• Question : For parallel connection, what wire to use?
  Answer : The 6amg wire recommended for parallel connection has a normal current of 52.5 amps and a maximum current of 59.9 amps, which is suitable for parallel connection of Power Queen batteries.
• Question : What’s the size of 12.8V 50Ah battery?
  Answer : Dimensions: L7.79 * W6.53 * H6.69 inch, Weight: 11.57 lb.
• Question : Is it safe to use for Newport vessels motor?
  Answer : Our 12V 50Ah battery with built-in 50A BMS may not be enough to power a trolling motor, so we don’t suggest using it for this application.
• Question : What is the max charge current? 190A?
  Answer : For the Power Queen 12V190Ah LiFePO4 battery, the maximum charging current is 150A.