Board Thread:Questions and answers/@comment-30049823-20190818154130/@comment-27306930-20190824141314

I used two high drain 14500 IMRs in a AA battery holder, so I am actually getting 7.2 volts at significantly higher current than alkaline batteries. It works nice at that voltage.

A word of advice about that dead IMR. If it's been dead a long time, it may have fallen below the safe voltage threshold for IMRs. So it might not take a charge. I don't know if those batteries have circuit protection. So if you recharge it, keep a close eye on it. It may melt down and potentially catch fire.

Be safe !