A quiet sine-wave external controller for Bafang front and rear hub-motor conversion kits, rated to 22A continuous. Features colour-coded waterproof connectors for the motor phase, hall sensors, PAS, throttle, brake cut-offs and display, making it a straightforward drop-in replacement. Supports both 36V and 48V battery systems. As a replacement spare part the legality of your finished e-bike depends on the full build specification fitted to it.

Bafang 22A External Controller (Hub Motor Kit)
£72.77
Price includes 20% VAT.
External sine-wave controller for Bafang front and rear hub motor conversion kits.
About this item
- Current rating: 22A continuous
- Voltage: 36V / 48V
- Wave type: Sine wave (quiet)
- Connectors: Waterproof colour-coded
- Compatibility: Bafang hub-motor kits
- Mounting: External (frame / rack)
In stock — dispatched within 2–3 working days
Free UK delivery on bikes · 30-day returns
| Brand | |
|---|---|
| Current rating | 22A continuous |
| Voltage | 36V / 48V |
| Wave type | Sine wave (quiet) |
| Connectors | Waterproof colour-coded |
| Compatibility | Bafang hub-motor kits |
| Mounting | External (frame / rack) |
Manufacturer Warranty
All e-bikes sold by VOLTARC come with the full manufacturer's warranty. Coverage typically includes:
- Frame & Fork — 2–5 years against manufacturing defects
- Motor & Battery — 2 years (capacity guarantee: ≥60 % after 500 charge cycles)
- Electrical components — 1–2 years
- Consumables (brake pads, tyres, chain) — not covered
How to make a claim
Email support@e-bikes.biz with your order number and a description of the issue. We aim to respond within 1 business day.
Extended Support
VOLTARC offers optional 3-year extended cover for an additional fee. Ask us at checkout.
No. EAPC (Electrically Assisted Pedal Cycle) e-bikes are legal on UK roads without a licence, insurance, or registration, provided the motor assists only while pedalling and is limited to 250 W / 15.5 mph.
Range depends on the battery size, rider weight, terrain, and assist level. Check the specific product specification for its stated range; typical figures are 40–120 miles per charge.
Most batteries charge in 3–6 hours from flat using the supplied charger. Fast-charge options (where available) can halve this time.
Yes. Our bikes carry an IP rating (see spec tab) and are designed for UK weather. Avoid submerging the battery or motor. Dry and lightly oil the drivetrain after wet rides.
14-day hassle-free returns on unused bikes in original packaging. For faulty bikes we will arrange a free collection. See our returns page for full details.
Finance is not yet available at checkout — it's planned for a future release. See our Finance page for the latest status and to register your interest.




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