Big Battery 36V RAPTOR 2 – 3.84kWh LiFePO4 - FRPTR-36038-G2
2ND GENERATION POWER IS HERE! BigBattery’s all-new 36V LiFePO4 RAPTOR 2 is a game-changer when it comes to powering your golf carts, utility carts, and industrial equipment, packing 3.84kWh of capacity in a highly durable, compact form factor.
The RAPTOR 2 was designed with safety, longevity, and visibility in mind. Not only does this battery come equipped with Tier 1 LFP cells, the safest chemistry on the market today, along with a state-of-the-art BMS featuring an automatic cell-balancing function, but all of these advanced components are housed in an IP65-rated, vibration-resistant casing so you can work hard and play harder. But it’s not enough just to know your power is secure. You should be able to see it firsthand, and the RAPTOR 2 makes this possible. With an LED State of Charge Indicator, and full RS485 communication protocols, you can stay updated on the status and performance of your battery with just a glance.
Outfit your vehicle with a reliably powerful, energy-dense RAPTOR 2 battery system, and experience superior lithium performance around the neighborhood, on the golf course, around the worksite, or in your warehouse. Shop the all-new 36V RAPTOR 2 today!
Included
- 1 × 2 AWG 4Ft Red & Black Terminal Cable
- 1 × Red & Black Terminal Rubber Cover
- 4 × M8 Screws
What our Experts Think
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Efficient 36 V lithium power — ~3.84 kWh capacity is a versatile fit for smaller 36 V systems like electric carts, utility vehicles, pallet jacks, or compact off-grid setups.
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Long-lasting LiFePO₄ chemistry — Advanced LiFePO₄ cells with smart BMS deliver stable performance, excellent cycle life, and strong protection against over/under voltage, current, and temperature.
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Reliable under load — Capable of steady continuous output and healthy peak bursts — suitable for motors, accessories, and everyday 36 V applications.
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Low maintenance & efficient operation — Lithium technology means less upkeep, deeper usable capacity, and better efficiency than traditional lead-acid batteries.
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Easy integration & upgrade — Compact form factor makes it simple to drop into existing 36 V battery bays or retrofit older systems without complex rewiring.
Q&A
Q: What is the BigBattery 36 V RAPTOR 2 – 3.84 kWh LiFePO₄ (FRPTR-36038-G2)?
A: A compact 36 V lithium-iron-phosphate (LiFePO₄) battery module with ~3.84 kWh usable energy — designed to replace or upgrade 36 V lead-acid battery banks in vehicles and equipment.
Q: What makes this battery stand out?
A: Efficient LiFePO₄ chemistry for long life and safety, high usable capacity for its size, stable voltage under load, and a built-in battery management system (BMS) for protection and cell balancing.
Q: What systems or equipment is it suited for?
A: 36 V golf carts, utility carts, industrial equipment, pallet jacks, lawn/grounds vehicles, off-grid 36 V systems, and e-mobility platforms originally designed for lead-acid batteries.
Q: What advantages does it offer over lead-acid batteries?
A: Greater usable energy per charge, lighter weight, maintenance-free operation (no watering), faster charging, stable performance under load, and a longer overall lifespan.
Q: What performance and reliability can be expected?
A: Consistent power delivery throughout discharge, efficient recharge cycles, minimal self-discharge, and many more charge/discharge cycles compared with lead-acid equivalents.
Q: Is installation straightforward?
A: Yes — designed as a drop-in LiFePO₄ replacement for existing 36 V systems with standard battery terminations.
Q: Does it include safety features?
A: Yes — the integrated BMS protects against over-voltage, under-voltage, over-current, and extreme temperatures while managing cell balancing for enhanced safety and longevity.
Maintenance Tips
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Install the RAPTOR 2 in a cool, dry, well-ventilated area to maintain stable 36V performance and extend LiFePO4 lifespan.
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Routinely inspect terminals, connectors, and wiring for corrosion, looseness, or damage to ensure safe and efficient operation.
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Clean the battery casing with a soft, dry cloth to remove dust and support proper heat dissipation.
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Protect the battery from direct sunlight, moisture, vibration, and extreme temperatures to preserve cell health.
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Avoid deep discharges and monitor state of charge to maintain long-term capacity and system reliability.
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For long-term storage, maintain the battery at 50–60% charge, disconnect all loads, and store in a temperature-controlled environment.
