Voltage of the single cell is too high

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

Quick answer

Error Code 44 signifies that the voltage of one of the battery cells exceeds acceptable limits. This issue can lead to potential battery damage or safety hazards if not addressed promptly. It is advisable to consult a professional for diagnosis and repair.

Stop riding Battery Often DIY-friendly Advanced (1 hr+)

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 44, indicating a problem with battery cell voltage.

Likely causes, ranked

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

#1 Single Cell Voltage Too High

How to check: Inspect the battery management system (BMS) for voltage readings.

When to stop and get professional help

If the error persists after checking the battery, consult a professional.

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

More codes for H700

41 · Total voltage from the battery is too high/low 42 · Total voltage from the battery is too high/low 43 · Total power from the battery cells is too high 45 · Battery temperature is too high 46 · Battery temperature is too low 47 · SOC of the battery is too high

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Sources & verification

Last verified: pending review Reviewed by: editorial team

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