Archived from the Tools In Action forum (Dewalt). This thread is read-only.
Is it still advisable every tenth time you charge your Lion 20V batteries to leave them on the charger for at least 10 hours to equalize the individual cells in the battery pack. I cannot find this in the owners manuals with any of the 20V tools I bought. It was recommended to do this with the 18V Lion batteries.
Nope you can just charge and go with the 20v max battery packs. The only thing is for long term storage have the battery charged around 80% Its supposed to prolong the life of the battery pack.