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A Tip for DeWalt FlexVolt Batteries
Jan 4, 2023 13:39:26 #
If you have rechargeable batteries, you should recharge them occasionally. This is especially true for the DeWalt FlexVolt. These battery packs contain fifteen individual cells. Three cells along the edge are constantly being drained by the electronics of the battery system. If you don't charge them often enough, over time, they will fail, leaving you with an expensive - nothing.
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Jan 5, 2023 13:30:19 #
Speaking of dewalt.if you buy the 20 v kit for your 18 v drill it will come with an adapter. If you leave the adapter on the drill it's OK, but If the 20 v battery is attached to the adapter it will drain the battery within a few day.i cannot believe dewalt would do this to us.i am now a ridgid user.
Jan 5, 2023 13:44:22 #
Lucasdv123 wrote:
Speaking of dewalt.if you buy the 20 v kit for your 18 v drill it will come with an adapter. If you leave the adapter on the drill it's OK, but If the 20 v battery is attached to the adapter it will drain the battery within a few day.i cannot believe dewalt would do this to us.i am now a ridgid user.
That's the adapter for the 18V NiCad drill. Otherwise the 18V Li-ion and 20Vmax Li-ion are exactly the same battery.
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Jan 5, 2023 14:40:04 #
It's not the battery. It's the adapter. If the battery in connected to the adapter it will drain the battery in a few days so keep the battery off the adapter otherwise you will loose the charge.
Jan 5, 2023 14:49:52 #
BebuLamar wrote:
That's the adapter for the 18V NiCad drill. Otherwise the 18V Li-ion and 20Vmax Li-ion are exactly the same battery.
As you might know, the difference between Dewalt 20V Max and 18V is essentially marketing in nature, rather than relating to electrical power. There is no functional difference between 20V Max and 18V!
Jan 6, 2023 00:03:34 #
Does the adapter have a USB connection? If so, that's probably what's doing it.
Also, I've had perfectly good 20V batteries show up as bad when the thermistor goes bad. It's a little black thing, supposed to be around 8 k ohms at room temperature, if not the pack will not charge and shows up as bad. I have a few of them from past failures.
Also, I've had perfectly good 20V batteries show up as bad when the thermistor goes bad. It's a little black thing, supposed to be around 8 k ohms at room temperature, if not the pack will not charge and shows up as bad. I have a few of them from past failures.
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