51V 65Ah Fleet Lithium Battery — NexGen BMS

51V 65Ah Fleet Lithium Battery — NexGen BMS Standalone 51.2V 65Ah LiFePO4 battery with NexGen BMS. Battery only — no charger or accessories included. Ideal entry-level option for stock (non-lifted) golf carts, custom builds, or replacements in an existing Fleet Lithium system. Stores 3,328Wh of energy. Key Specs Chemistry: LiFePO4 Nominal Voltage: 51.2V Capacity: 65Ah (3,328Wh) 300A NexGen BMS with 800A peak surge Cycle Life: 3,000–5,000 cycles at 80% DoD Weight: ~38 lbs Built-in cold-weather heater — activates automatically below 32°F Patent-pending fire suppression system Bluetooth monitoring — voltage, temp, cycle count Safety & BMS Active cell balancing, overcharge/over-discharge/short circuit/overcurrent/thermal/reverse polarity protection, low voltage disconnect, and real-time app monitoring. FAQ Does this include a charger? No. This is the battery only. Purchase a 58.4V lithium charger separately or see our Bundle listings for a complete kit. Will this fit a lifted cart? The 65Ah tier is recommended for stock (non-lifted) golf carts. For lifted carts or longer range, step up to the 105Ah or 168Ah. Can I use this as a replacement in my existing Fleet Lithium system? Yes. Drop-in compatible with any Fleet Lithium 48V/51V setup. Does it work in cold weather? Yes. Built-in heater activates automatically below 32°F. 10-year warranty. Designed and assembled in the USA.