ACCUMULATOR 20E
20E ACCUMULATOR
High-Voltage Horsepower
HR20-E’s accumulator is a complete redesign from HR19-E’s water-cooled pouch cell architecture based on a design driver to maximize reliability at the lowest weight possible. With thermal analysis to support opting for ditching a water cooled battery, a sub-50 kg accumulator was a possibility. To accommodate the new motor choice, a system voltage step up to 400 V was necessary, reducing the bus current and some of the prior heat transfer necessities. A more conservative energy usage prediction was factored into the architecture, increasing the pack capacity from 6.5 kWh to 8 kWh.
TECHNICAL SPECIFICATIONS
- System operating voltage: 403 V
- 6 individual battery modules; 80 cells per module — 480 cells total
- Capable 90 kW peak power discharge
- Total capacity 8 kWh
- Sealed pack designed to reliably operate in wet conditions
- Custom designed BMS
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