Can the Opus BT3100 v2.2 charge 21700 Li-ion Batteries

ktate749 · Dec 30, 2020

I see 21700 batteries are not supported by the BT3100 but it looks like they would fit. Would it endanger the charger or battery if I tried to charge one?

Thanks,
Kurt Tate

TinderBox (UK) · Dec 31, 2020

ktate749 said:
I see 21700 batteries are not supported by the BT3100 but it looks like they would fit. Would it endanger the charger or battery if I tried to charge one?

Thanks,
Kurt Tate

I charged an unprotected one in my "Opus BT3100 v2.2" the other day, Though an protected one might not fit due to the extra length, I dont have one to measure.

John.

markr6 · Dec 31, 2020

I never even thought to check. Just been charging mine for over a year now with no issues. Unprotected cell.

ktate749 · Dec 31, 2020

Thanks all. That puts my mind at rest.
Kurt

TinderBox (UK) · Dec 31, 2020

From the review below "The charger uses the classical slider construction to handle most battery sizes. The slider works smoothly and can handle sizes from 32 mm to 72.5 mm.
For measuring internal resistance the slider is not very good, it often has a "high" connection resistance."

https://lygte-info.dk/review/Review Charger Opus BT-C3100 UK.html

Can the Opus BT3100 v2.2 charge 21700 Li-ion Batteries

ktate749

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TinderBox (UK)

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markr6

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ktate749

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TinderBox (UK)

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