Bafang DP E170.CAN / E180.CAN / E181.CAN code list · Bafang DP E170 / E180 / E181 Display

Error 46 on Bafang DP E170 / E180 / E181 Display

What it means + how to fix it From the manual

Quick answer

Error 46 on the Bafang E170 / E180 / E181 means “The temperature of the battery is too low.” Most likely cause: the battery has been left in the cold. Try this first: restart the system first.

Try this first

Free, and each takes under 5 minutes.

Restart the system first
Warm the battery indoors

In plain English

Lithium batteries limit power when they're very cold and shouldn't be charged below freezing. Warm the battery up indoors before riding or charging.

Step-by-step checklist

Work from the top. Steps go from free and easy to shop jobs. Switch the bike off before touching any connector. Tick each step as you go. Your progress is saved on this device.

1Restart the system firstFree Bafang's manual says to restart first whenever an error code appears: switch the system off, wait a few seconds, then switch it back on. If the code doesn't go away, carry on with the steps below.
2Warm the battery indoorsFree Bring the battery indoors and let it reach room temperature for an hour or two before riding or charging.
3Have the battery testedShop job A shop can test the battery and its protection circuit and tell you if it needs replacing. Never open the battery pack yourself.

Parts you might need

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Only buy a part if the free steps didn't fix it. Always match the voltage and connector type to your bike.

Replacement e-bike battery
Only if a shop confirms your battery is worn out or faulty. Must match voltage, mount and connector.
Link coming soon

Still not fixed?

Pages to try next:

When it's time for a shop: if you've worked through every step and the problem is still there, take the bike to an e-bike shop. Bring your notes on when it happens, plus the code.