Battery temperature is too low

Stop riding Last verified: pending review Reviewed by: editorial team

Quick answer

Error Code 46 indicates that the battery temperature has dropped below the acceptable threshold. This can prevent the eBike from operating normally as the system prioritizes safety to avoid damage to the battery. It is essential to address this issue to ensure proper functionality.

Stop riding Battery Often DIY-friendly Beginner (15–30 min)

Does this apply to your bike?

H700 · Bafang · Common displays: DP E171

Heads-up: the same number can mean different things on other systems — always check your drive system first. Browse all drive systems →

What you’ll notice

The display shows Error Code 46, and the motor may not operate.

Likely causes, ranked

Start at #1 — causes are ordered by how often they turn out to be the problem.

#1 Battery temperature too low

How to check: Check the battery temperature using a thermometer or the display if available.

Troubleshooting steps

Check battery temperature

Tools: thermometer easy

Use a thermometer to measure the battery temperature.

If it passes →Proceed to warm the battery if necessary.

If it fails →Stop and consult a professional.
Warm the battery

easy

If the battery is too cold, bring it indoors or use a battery warmer.

If it passes →Check if the error clears.

If it fails →Stop and consult a professional.

When to stop and get professional help

If the battery temperature does not rise after warming, or if the error persists.

Never open, puncture, or disassemble the battery pack, and never bypass the BMS. See our safety guide.

More codes for H700

43 · Total power from the battery cells is too high 44 · Voltage of the single cell is too high 45 · Battery temperature is too high 47 · SOC of the battery is too high 48 · SOC of the battery is too low

Different number? Type it into the search box at the top of the page.

Did this fix your problem?

None% of riders reported this solved

Sources & verification

Last verified: pending review Reviewed by: editorial team

Missing a code or step? Tell us.

Spotted a code we don’t cover, or a step that didn’t match your bike? Send it in — submissions shape what we research next.