51V 168Ah Fleet Lithium Battery — NexGen BMS Drop-in 51.2V LiFePO4 replacement for tired 48V lead-acid banks — extended-range edition. 8,601Wh of fade-free energy, half the weight of lead, and zero maintenance. Monitor state of charge, voltage, and cycle count via Bluetooth. Patent-pending fire suppression and a 300A NexGen BMS keep you running through every shift, round, and run. What This Upgrade Fixes Eliminates voltage sag and sluggish performance common in aging lead-acid setups Cures range anxiety with consistent, fade-free power down to the last drop of capacity Removes hundreds of pounds of dead weight, improving acceleration, handling, and braking Ends the hassle of terminal corrosion, acid leaks, and seasonal battery watering What's Included 1× 51.2V 168Ah Fleet Lithium Battery. Standalone bare battery unit. A 58.4V lithium charger, custom wiring, and mounting brackets are not included — see our Bundle and Conversion Kit listings for complete drop-in packages. Compatibility Universal 51.2V power unit engineered as a one-for-one replacement for 48V lead-acid battery banks. Extended-range capacity is ideal for lifted carts, LSVs, UTVs, deep-cycle marine applications, and off-grid solar banks running factory 48V controllers — no reprogramming required for most vehicles. Key Specs Chemistry: LiFePO4 Nominal Voltage: 51.2V Capacity: 168Ah (8,601 Wh / 8.60 kWh) Cell Configuration: 16S1P Working Voltage: 43.2V – 58.4V Charging Voltage: 58.4V BMS Voltage Cutoff: 43.2V Recommended Low Voltage Disconnect: 49.0V 300A NexGen BMS with 800A peak surge Cycle Life: 5,000+ cycles at 80% DoD Weight: ~154 lbs (70 kg) Dimensions: 22" × 12" × 10.6" Enclosure: Cold rolled steel, IP65 Operating Temp (Discharge): -20°C to 55°C (-4°F to 131°F) Operating Temp (Charge): 0°C to 55°C (32°F to 131°F) — heater activates below 32°F Communication: Bluetooth, GPS, RS485, UART, CAN Frequently Asked Questions Does this battery include a charger? No — this listing is the bare battery only. You'll need a matched 58.4V LiFePO4 charger to run it. Best value: Grab the 51V 168Ah Fleet Lithium Bundle — battery + 58.4V smart charger + cable set + AC connector + state-of-charge gauge. Everything for a complete drop-in. Charger only: Add the CH5618 58.4V 18A Smart Charger alongside this battery. Will this work in severe cold climates? Yes. The NexGen BMS automatically activates internal heating below 32°F so the pack charges safely year-round. How long will this battery actually last? Engineered for over a decade of reliable performance and backed by our 10-year warranty. LiFePO4 cells are rated for 5,000+ cycles — at typical golf cart usage that translates to 10+ years of service life. Will this work without reprogramming my controller? In most cases, yes. Factory 48V controllers are generally compatible with the 51.2V output without modification. Can I integrate this with a sophisticated motor controller? Yes. The integrated BMS provides CANBUS and RS485 ports for advanced motor controllers and telemetry systems. Is there a vehicle-specific kit with brackets? Yes. If you're converting a specific golf cart (EZGO, Club Car, Yamaha, Advanced EV, etc.), our 48V Conversion Kits include this exact battery plus a model-specific bracket, charger, and all wiring — no fabrication required.
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