Renogy Smart Lithium-Iron Phosphate Battery 48V 50Ah w/Self-Heating Function,4500+Deep Cycles,Built-in BMS and Bluetooth,Backup Power Perfect for RV,Solar,Marine,Off-Grid System - RBT50LFP48S

• UPC   810009716358
• 【Uncompromising Quality】 Renogy’s latest 48V battery delivers a breakthrough in quality by offering an exceptional lifespan of more than 4500 cycles (reducing to 80% capacity after 4500 cycles), a 50A maximum discharge current, and most importantly, an extensive five year warranty. 【Self-Heating Function】The intelligent self-heating function will start operating automatically once the battery’s core temperature drops below 41°F (5°C), effortlessly keeping your battery charged in cold environments. 【Reliable BMS System】The upgraded battery management system (BMS) with high performance dual-processors provide load fluctuation resistance while maintaining balanced voltage across all cells. 【Auto-balancing Function】Easily connect multiple batteries in parallel with the auto-balancing function to improve the average charging efficiency of your batteries over extended use. 【Real-time monitor】Featuring advanced RS485 communication ports—your batteries will be able to communicate with each other, external devices and host computers allowing you to monitor the charging status in real-time. (A BT-2 Bluetooth Module or Monitoring Screen is needed).