Big Battery 36V GATOR MAX - LiFePO4 - 120Ah - 5kWh (DISCONTINUED)
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Visit CalculatorThe BigBattery 36V GATOR MAX is the ultimate lithium upgrade for high-performance 36V systems. Whether you’re powering a golf cart, electric boat, or industrial vehicle, the GATOR MAX delivers 5kWh of reliable energy and a 120Ah capacity built on Tier 1 LiFePO4 cells. With ultra-safe Smart BMS protection, IP65-rated weather resistance, and 10+ years of lifespan, this battery is engineered for serious, long-term use with zero maintenance.
Massive Energy Storage – Offers 5kWh of clean, reliable lithium power, perfect for long-range electric vehicles and off-grid storage.
120Ah Capacity – Provides extended runtime, making it ideal for golf carts, boats, material handling equipment, and more.
Advanced LiFePO4 Chemistry – Built with Tier 1 lithium iron phosphate cells rated for up to 6,000+ cycles at 80% DoD.
Smart BMS Integration – Monitors and protects against overcharge, over-discharge, high/low temps, and short circuits.
High Power Output – Supports continuous 100A discharge and 200A peak, powering demanding devices and motor loads with ease.
Weather-Resistant & Durable – Enclosed in an IP65-rated case, suitable for outdoor environments and vibration-prone use.
Zero Maintenance – No watering, no corrosion, and no off-gassing—just plug in, charge, and go.


Everything you need is included with your product.
| Category | Specifications |
| SKU | AGATR-36050-G1 |
| System Voltage: | 36V |
| Nominal Voltage: | 41.6V |
| Chemistry | LiFePO4 |
| kWh Capacity: | 5kWh |
| Ah Capacity: | 120Ah |
| Charging Voltage Range: | 45.2 - 47.1V |
| Max Charge Voltage: | 48.75V |
| Operating Voltage Range: | 38.3 – 45V |
| Suggested Low Voltage Cutoff: | 38.3 – 41V |
| BMS Cutoff Range: | 34.1 – 38.2V |
| Cell Configuration: | 13S 6P |
| Max Continuous Discharge Current: | 150A |
| Max Continuous Power: | 6400W |
| Max Discharge Peak Current: | 300A (6 Seconds) |
| Max Charge Current: | 100A |
| Charge Temperature Range: | 0°C (32°F) / 55°C (131°F) |
| Discharge Temperature Range: | -20°C (-4°F) / 55°C (131°F) |
| Optimal Discharge Temperature Range: | 15°C (59°F) / 35°C (95°F) |
| Storage Temperature Range: | -5°C (23°F) / 35°C (95°F) (Max 6 Months) |
| Weight: | 120 lb (54.4 kg) |
| Depth: | 10.2 in (25.9 cm) |
| Width | 29.7 in (75.4 cm) |
| Height | 11 in (27.9 cm) |
| Safety Features: | Breaker (2x 63A) & Battery Management System (Over/Under Voltage, Over Current, & Over/Under Temperature Control) |
| Max Connections: | Up To (8) Parallel |
Can I install this in my golf cart or utility vehicle?
Yes! It’s a direct-fit lithium upgrade for most 36V lead-acid systems, offering better range, faster charging, and no maintenance.
Is the GATOR MAX waterproof?
The IP65 rating makes it dust-tight and protected from water jets—perfect for outdoor and semi-exposed environments.
Can I expand my system with more batteries?
Yes. You can connect additional GATOR MAX units in parallel to increase capacity. Series connections are not supported unless specified.
Does it work with my current charger?
Your charger must be lithium-compatible and match the voltage range of 43.8V–44.4V. BigBattery offers chargers optimized for this battery.
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