Board Thread:General Nerf discussion/@comment-27035444-20160821193230/@comment-27306930-20160824201413

BTW, many thanks to Mojo for steering me toward the Nitecore D4. It's a really nice charger.

I also learned a little about charging IMRs yesterday. Apparently the "protection circuit" shuts the battery off when the voltage drops below 3 volts because charging them below that voltage can result in ruptures, fire, or catastrophic failure. Hmmm, I'd kinda like to see that last one.

The circuit also limits the voltage and current during charging, and has a pressure relief vent in case the cell goes Chernobyl on you. But apparently they're very safe.

So the take away from this is stay away from unprotected IMRs. You have to monitor the voltages very carefully on those to avoid BIG problems.