(NEW) Surron Ultra Bee 72V Upgraded Battery

Drop-in replacement battery 
Designed to match the stock Ultra Bee battery in both size and weight, this pack fits the bike with no battery-lid modification required. It delivers double the power output while remaining fully compatible with the stock controller. A new bike power harness is included, built with a reliable high-current fuse for added protection, and the pack comes with all parts needed for the communication cable, providing full compatibility with stock and aftermarket controllers.

Upgraded cell performance
Unlike the pouch cells in the stock battery, which heat up under load, this battery uses high-performance Molicel cells for greater efficiency and durability, delivering their full rated current while maintaining a long cycle life, unlike weaker power cells such as the 50S. Expect increased range, more consistent power at lower charge levels, and reduced heat under normal riding conditions.

Relocated charge port
The battery features a standard XT60 charge port on the pack, and also includes a custom XT60 port mounted in place of the USB port for a cleaner, more accessible charging solution.

Note: The dashboard will no longer display battery percentage. The remaining power can be monitored via the Bluetooth BMS app or the built-in screen on the top lid.

All orders before January 2026 get a free 15A fast charger included.

• Battery 
• Charger
• QS10 Bike Power Harness

63Ah Specs:

67.5Ah Specs:

75Ah Specs:

• Metal enclosure with a water-resistant, durable build.
• Battery monitor screen on the top lid showing percentage, voltage, and cell temperature.
• BMS-bypassed discharge for full, uninterrupted power (BMS handles charge only)
• Smart BMS with Bluetooth monitoring.