a.palfreyman
pfm Member
My Dewalt 18V drill batteries are getting tired. About 3yrs ago I opened them up to find 2-3 duff cells in each of the two packs. I recharged these low cells separately using a current limited psu and cycled the packs a couple of times which improved things, but fear they are as bad now if not worse.
Just spotted this:
https://itstillruns.com/refurbish-18v-dewalt-battery-6225112.html
This suggests that a 3 second burst from a 12V car battery charger can revive poor cells. Seems a bit risky to me, but I'm tempted as I have nothing to loose. Oh, I'd not remove the cells. I'd just 'burst' charge them in-situ. Any thoughts?
Just spotted this:
https://itstillruns.com/refurbish-18v-dewalt-battery-6225112.html
This suggests that a 3 second burst from a 12V car battery charger can revive poor cells. Seems a bit risky to me, but I'm tempted as I have nothing to loose. Oh, I'd not remove the cells. I'd just 'burst' charge them in-situ. Any thoughts?