LWN P850c 4P Electric Bike Switch Controller: 4-pin connector
Available Options

Meet the Electric Bike Switch Controller—your go-to for smooth sailing with central motor systems, especially the Bafang P850c. Why fuss with finicky connections when you've got a 4-pin connector that means business? Plus, we threw in a 300MM extension cable because, let's face it, nobody likes being stuck in a tight spot during installation. Whether you're giving your ride a facelift or fixing a glitch, this little gadget's got your back.
- Compatible with Bafang P850c
- 300MM extension cable
- Central motor switch
- 4-pin connector
General specs
- Brand: LWN
- Model: P850c 4P
- Seller: Joom
- Connector Type: 4-pin
- Cable Length: 300MM
- Compatibility: Bafang P850c central motor
- First listed by seller: 6/21/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Comparison with similar products
This item | Recommendations | |||||
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![]() LWN P850c 4P 4-pin connector
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![]() ZuiyouSports P850C 4 PIN connector
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![]() CosyHome P850C 4 PIN connector
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![]() Electric Bike Controller 12V 500W power
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![]() Electric Bicycle Brush Controller 48V 800W power output
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![]() Electric Bike Controller Waterproof design
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Brand | LWN | ZuiyouSports | CosyHome | CosyHome | 3CZY | PHYUN-autoparts |
Model | P850c 4P | P850C | P850C | |||
Color | ||||||
Rating |
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Price | $17.68 | $29.79 | $22.38 | $22.32 | $32.65 | $81.37 |
Seller | Joom | Joom | Joom | Joom | Joom | Joom |
Update | August 31, 2025 | August 20, 2025 | August 29, 2025 | August 29, 2025 | August 13, 2025 | August 28, 2025 |
Connector Type | 4-pin | 4 PIN | 4 PIN | |||
Compatibility | Bafang P850c central motor | Bafang P850C Mid Mount motor display panel | Bafang P850C Mid Mount motor display panel | DC motor | Lithium batteries |
Reviews
Liam C.
Vancouver, BC
June 26, 2025
i had this persistent problem with my bike's motor cutting out unexpectedly, which was a real headache during my commutes. after some research, i picked up this LWN controller as a potential fix. installation was straightforward—the connector snapped right into place without any hassle, and the extra cable length meant i didn't have to struggle with positioning. since swapping it in, the motor has been running smoothly with no interruptions. it's a solid solution that saved me from bigger repair costs, and i'm extremely pleased with how it handled the issue. could be wrong, but it seems like a durable part that'll last.
- Pros: the connection is extremely secure and reliable, no more finicky issues with the motor system. the included extra length cable made installation a breeze, even in tight spaces, and it feels well-built for long-term use.
- Cons: could be a bit pricey for some, but given the quality, it's worth it. might not fit all setups without minor adjustments, but that's typical for these parts.