2020+ Lithium Ion Battery 48V 12AH
The 48V 12AH lithium-ion battery is the entry-level pack for the Surface 604 48-volt lineup. Built with Samsung 18650 cells rated at 2,500mAh each, this battery delivers reliable power for daily commuting and… Read more ↓
Fits every Surface 604 model from 2020 on, plus a handful of older Surface 604 and T4B models that share the same short-base dock. Not compatible with the 2017–2019 Rook or the Twister folding eBike.
The 48V 12AH lithium-ion battery is the entry-level pack for the Surface 604 48-volt lineup. Built with Samsung 18650 cells rated at 2,500mAh each, this battery delivers reliable power for daily commuting and…
The 48V 12AH lithium-ion battery is the entry-level pack for the Surface 604 48-volt lineup. Built with Samsung 18650 cells rated at 2,500mAh each, this battery delivers reliable power for daily commuting and moderate-distance rides.
The short-base design fits the standard Surface 604 downtube battery mount on 2020 and newer models, and is also backward-compatible with 2018-2019 Shred and Boar frames. A new battery is the single biggest performance upgrade you can make to an aging eBike — restoring both range and peak power output.
Note: not compatible with the Twist folding model.
Specifications.
- Voltage
- 48 V nominal
- Capacity
- 12 Ah
- Watt-hours
- 576 Wh
- Range estimate
- ~80 km on PAS 2 (mixed pavement/gravel)
- Cell chemistry
- Lithium-ion (NMC)
- Cell manufacturer
- Samsung 21700
- Cell count
- 13S 3P · 39 cells
- BMS
- Integrated · over-charge, over-discharge, short-circuit, thermal protection
- Charge time
- 5–6 hrs on stock 2 A charger · 3 hrs on 4 A fast charger
- Dimensions
- Short-base form factor — same as stock 14 Ah
- Weight
- 2.6 kg (5.7 lb)
- Certifications
- UL 2271 · UN 38.3 · IPX5 splash-resistant
- Warranty
- 1 year Surface 604 + 30-day fit guarantee (eBC)



