Generic SW900
The SW900 is a color LCD display used in budget and mid-range e-bike conversion kits. It auto-detects system voltage (24V/36V/48V) and shows riding speed, battery level, PAS level, power output, temperature, trip distance, and odometer. Compatible with "No. 2 Protocol" (UART_NO2) sine-wave controllers — the same protocol used by S866, Brainpower, and Greentime generic controllers. Common inclusion in complete conversion kit bundles from sellers like CSC, NBPower, and similar.
In brief: E-bike display. Protocols: UART No.2 (S866/Brainpower). From $28 across 3 sellers.
Specs verified Sep 9, 2026
Where to Find
Prices tracked across 4 sellersAliExpress - Qxone Store
$27.58
Amazon - PABVZS
$32.71 + $7.00 shipping
Biktrix
$65.00
Amazon - mGYDY
Check seller for price* Shipping estimates are for the contiguous US and may vary by location.
Price History
Current best price $65.00. Over the past 90 days: low $65.00, high $65.00, average $65.00 — about average.
- Biktrix
Reviews
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Specifications
Specifications
- Protocols
- UART No.2 (S866/Brainpower)
- Light Control
- Yes
- Phone Charger
- No
- Bluetooth
- No
Physical
- Weight
- 138 g
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Ground |
| 3 | Blue | UART TX |
| 4 | Green | UART RX |
| 5 | Yellow | High Beam |
Comes With
Included in Kits
Generic 48V 1000W 26" Rear Hub Kit w/ SW900From $188.80
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