The 72V battery upgrade is the single most impactful performance modification available for Sur-Ron Light Bee X and Talaria Sting owners. Moving from the stock 60V system to a high-discharge 72V Molicel P45B pack increases peak power by 20%, reduces motor and controller temperatures under load, and adds 15–25 km/h to achievable top speed without changing any other components.
Why 72V Outperforms 60V: The Physics Electrical power equals Voltage multiplied by Current (P = V × I). Delivering 12kW through a 60V system requires 200A of current — generating significant heat in wiring, connectors, and motor windings. The same 12kW through a 72V system requires only 167A. Lower current means cooler motors, less voltage sag on hills, and longer sustained high-speed performance.
EDBA 72V 40Ah Molicel Pack The [72V 40Ah High Discharge Battery](https://www.electricdirtbikeaustralia.com.au/shop/72v-40ah-battery/) at Electric Dirt Bike Australia uses genuine Molicel P45B 21700 cells rated at 45A continuous discharge per cell. The pack includes a smart Bluetooth BMS for real-time cell monitoring, a QS8 discharge connector, and Anderson charge port compatible with the 72V fast chargers in EDBA's range. Capacity: 2,880Wh. Approximate range: 110–140km (eco mode trail riding).
EDBA 72V 60Ah Maximum Range Pack For riders prioritising endurance over sprint performance, the [72V 60Ah Samsung 50S pack](https://www.electricdirtbikeaustralia.com.au/shop/72v-60ah-battery/) delivers 4,320Wh and up to 180km trail range. These Samsung 50S cells offer 5,000mAh capacity per cell versus the Molicel P45B's 4,500mAh, making them ideal for multi-hour bush sessions where sustained range matters more than peak discharge.
What Controller Do I Need for a 72V Upgrade? The stock Sur-Ron Light Bee X controller is rated for 60V operation. For a 72V battery, you must upgrade to a 72V-rated controller — the [High-Performance 72V Controller](https://www.electricdirtbikeaustralia.com.au/shop/72v-controller/) handles up to 300A peak current and includes mobile app tuning for throttle curves, regen braking, and thermal rollback protection. Never run a 60V controller on a 72V battery — overvoltage will damage the FETs and void your warranty.
Recommended Bike for Australian Trails
View Model Specs →Sur-Ron Light Bee X (60V 40Ah)
Australia's most popular electric trail bike with 6kW peak power, 60V 40Ah battery, and lightweight 50kg dry weight.