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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 2 sellers.

Where to Find

Prices tracked across 3 sellers

* Shipping estimates are for the contiguous US and may vary by location.

Specifications

Specifications

Protocols
UART No.2 (S866/Brainpower)
Light Control
Yes
Phone Charger
No
Bluetooth
No

Physical

Weight
138 g

Ports & Connectors

Controller Cable
UARTDisplay
1Battery +
2Ground
3UART TX
4UART RX
5High Beam

Comes With

Frequently Asked Questions

Alternative Displays

Other Displays

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