18650 charger question

So I have my regular efest 2 bay luc charger that I've used for the last few months and I love it but I recently bought a rx200 and need to charge 3 battery's at once and I have some old 18650 chargers laying around they have overcharge protection and everything just wondering if these chargers will damage my battery's any input is welcome. And yes I know I should buy another charger but I'm hard up and if you want to give me one I am currently accepting donations


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Moving to Battery Junkies to see if you get some answers here.

I doubt it would hurt anything if they have over charge protection. Only thing is they might not charge at the same rate so all 3 batteries might not be ready at the same time.

As long as there charging to the same voltage I don't see a problem.

Thanks guys
And sorry @Huckleberried excuse the noob I couldn't find the sub forum to post this in.

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