Pass-Through Not Working
Anker Power Bank
Severity: MinorWhat Does This Error Mean?
Pass-through charging (charging a device while the power bank is being recharged) is not supported on all Anker models. Some models support it but at reduced speed. Check your model's specifications.
Affected Models
- Anker PowerCore 10000
- Anker PowerCore 20000
- Anker 737 (PowerCore 24K)
Common Causes
- Model does not support pass-through charging
- Power bank prioritising its own recharging over device output
- Cable issue preventing simultaneous connections
- Power bank in trickle charge mode
How to Fix It
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Check if your model supports pass-through.
Not all Anker power banks support charging a device while being recharged. Check the product page or manual.
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Use separate cables for input and output.
Plug the charger into the INPUT port and your phone into the OUTPUT port. Both cables must be connected simultaneously.
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Use a wall adapter with enough power.
A weak adapter may only have enough power for one direction. Use at least 18W for simultaneous charging.
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Accept reduced charging speed.
Even models that support pass-through charge devices slower during recharging. This is by design to protect the battery.
Frequently Asked Questions
Is pass-through bad for the battery?
Slightly. Pass-through charging generates more heat, which degrades the battery faster. Use it occasionally, not as a daily habit.
Does pass-through charge both at the same speed?
No. The power bank prioritises its own recharging. Your connected device charges slower than normal.