Compact Design: 480 × 362 × 242 mm | 69.85 kg
Massive Capacity: 628Ah (12.8V) | ~8kWh energy storage in a single unit
Equivalent: 2-parallel 12V 314Ah
High Energy Density: 3X weight energy density of lead-acid batteries, ideal for RVs and ships
Ultra-Long Cycle Life: 6,000+ cycles at 80% DoD—outperforming standard LiFePO4 batteries
High Power Output: Continuous 300A discharge (3,840W) for heavy-duty inverters and equipment
Smart Bluetooth Monitoring: Real-time voltage, SoC, temperature, and health via WattCycle app
Robust 300A BMS with 8X Protections: Over-current, short-circuit, and thermal safeguards
Temperature Protection: Charge: -5°C to 60°C | Discharge: -25°C to 75°C
Scalable Design: Supports up to 4-series (51.2V) and 4-parallel (2,512Ah) = 128.61kWh usable energy
Military-Grade Build: UL94 V-0 fire-resistant ABS+PC casing with corrosion-resistant M8 terminals
 
Tech Specs
Dimensions: 18.9 × 14.25 × 9.53 inch | 480 × 362 × 242 mm
Weight: 153.99 lbs | 69.85 kg
Standard / Maximum Continuous Charging: 125.6A / 300A
Maximum Continuous Discharging: 300A
Over-current Discharge Protection: 310A ±10A
Over-current Charge Protection: 310A ±10A
Primary Protection Current Value: 500A @ 20s
Secondary Protection Current Value: 1000A @ 5s
Short-Circuit Current Protection: Support
Release Condition: Cut Load
Charging High Temperature Protection: 140°F ~ 158°F / 60°C ~ 70°C
Discharge High Temperature Protection: 149°F ~ 167°F / 65°C ~ 75°C
High Temp Protection Release: Drop by 41°F ~ 59°F / 5°C ~ 15°C
Charging Low Temperature Protection: 23°F ~ 41°F / -5°C ~ 5°C
Discharge Low Temperature Protection: -13°F ~ 5°F / -25°C ~ -15°C
Low Temp Protection Release: Rise by 41°F ~ 59°F / 5°C ~ 15°C
Rated Voltage: 12.8V
Standard Charging Voltage: 14.6V ±0.2V
Shipping Charging Voltage: 12.8V ~ 13.5V
Shipping Capacity:  50%
Cycle Life: 6000 @ 80% DOD
Self Discharge Rate: <3% / Month
Series & Parallel Connections: 4 Parallel (Max), 4 Series (Max)
Communications: Not Supported
Case Material: ABS + PC / UL94 V-0
Storage Temperature: 32°F ~ 140°F / 0°C ~ 60°C
Terminal Bolt Size: M8
 
5-Year Warranty