Diecast enclosure helps the battery withstand abuse, debris & dirt.
Designed to deliver a 2,000 cycle lifespan with virtually no scheduled maintenance.
Consistently Delivering Confidence
We are committed to safety and efficient operations, which is why the Battery Management System (BMS) constantly measures voltage and temperature.
There are two CANbus ports so OEMs can easily exchange information with the battery pack. One CANbus uses the J1939 automotive standard, while the other is designed for uncomplicated data transfer with the OEM's current communication network: No reprogramming of that network is required.
Diagnostic protocols use standard CANbus procedures.
Robust three year commercial limited warranty. CLICK HERE for details.
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Fi Series Name
Nominal Voltage (V)
Top Voltage (V) per IEC 61960
Top Voltage (V) for EV-Applications
Cutoff Voltage (V)
Nominal Capacity per IEC 61960
67.5 Ah / 3.5 kWh
J1939 (29-bit), CAN Open (11-bit)
Discharge Temperature Range
-20°C to +70°C
Storage Temperature Range (1 Month / 1 Year)
-20° to +60°C / -20°C to +25°C
Charging Temperature Range
-10°C to +45°C
Marketed Durability Hours/Cycles
2000 cycles to 80% initial capacity
Rated Charging Current (A)
Rate Discharging Current (A)
Yes, up to 10 batteries
Standard Charge Time
Vanguard Charger Output Power (W)
On-Board or Stand Alone
*Total energy measured using a 0.2C discharge per IEC 61960-3:2017