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Forum Charging two 18650 batteries with one TP4056 module

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Charging two 18650 batteries with one TP4056 module

yukardo over 6 years ago

Hello,

I want to know if it is possible to charge two 3.7 V 18650 batteries with one TP4056 module.

The batteries would be connected in parallel.

I hope you can help me.

Thanks.

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Gough Lui over 6 years ago +4

You can, as paralleled cells behave like one larger cell. Charge time will be longer, accordingly. Just be sure the cells you are paralleling are of the same make/model/capacity/state of charge/age and…
afmishaq over 6 years ago in reply to Gough Lui +1

" ... the same make/model/capacity/state of charge/age ..", is required, otherwise a damage to cell or charger or both may result. I would not take a chance considering that the TP4056 module is a small…
michaelkellett over 6 years ago +1

Obviously you are doing this to get more battery capacity. What is the battery capacity you are aiming for ? MK

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Gough Lui over 6 years ago

You can, as paralleled cells behave like one larger cell. Charge time will be longer, accordingly. Just be sure the cells you are paralleling are of the same make/model/capacity/state of charge/age and don't parallel more than the manufacturer's limit (normally 3 or 4 cells).

- Gough
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afmishaq over 6 years ago in reply to Gough Lui

" ... the same make/model/capacity/state of charge/age ..", is required, otherwise a damage to cell or charger or both may result. I would not take a chance considering that the TP4056 module is a small fraction of the cost of 18650.
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afmishaq over 6 years ago in reply to Gough Lui

" ... the same make/model/capacity/state of charge/age ..", is required, otherwise a damage to cell or charger or both may result. I would not take a chance considering that the TP4056 module is a small fraction of the cost of 18650.
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