Cordless drill Batteries that discharge when sitting awhile.

[SideShow Bob]

It never fails, I go to use my cordless drill (DeWalt 18V XRP) and both batteries have discharged. Before I put it away the last time, less than a month ago, I charged both of them up and put the little plastic caps over the contact area and stored evevrthing in the carry case.
Now, I go to use the drill and one battery is discharged to the point of no power and the other one seemed to have a charge, but died about 1/3 into the first hole that I drilled. GRRRRRR !
These are fairly new batteries, I replaced the old ones that were getting very weak and spent more time charging than working.

What drills do all of you have that don?t discharge the batteries from just sitting for a little time ? Is there such a thing ?
As soon as I can afford a new cordless that will stay charged, I will replace this DeWalt.

[DEAGLER]

It never fails, I go to use my cordless drill (DeWalt 18V XRP) and both batteries have discharged. Before I put it away the last time, less than a month ago, I charged both of them up and put the little plastic caps over the contact area and stored evevrthing in the carry case.
Now, I go to use the drill and one battery is discharged to the point of no power and the other one seemed to have a charge, but died about 1/3 into the first hole that I drilled. GRRRRRR !
These are fairly new batteries, I replaced the old ones that were getting very weak and spent more time charging than working.

What drills do all of you have that don?t discharge the batteries from just sitting for a little time ? Is there such a thing ?
As soon as I can afford a new cordless that will stay charged, I will this DeWalt.

No problems here with my 20v and 60v’s

[Irving]

I don't think I have that problem with my Ryobi batteries. I'm sure they discharge some, but nothing like you're talking about. Not saying to run out and switch to Ryobi, just that I don't seem to have that issue.

[StagLefty]

I don't think I have that problem with my Ryobi batteries. I'm sure they discharge some, but nothing like you're talking about. Not saying to run out and switch to Ryobi, just that I don't seem to have that issue.

Yup same here.

[izzy]

I have dewalt drills and they've never done this to me. I do typically keep a battery on the charger at all times though just in case.

[SideShow Bob]

I have dewalt drills and they've never done this to me. I do typically keep a battery on the charger at all times though just in case.

I would do this, but I would think that keeping a battery on a charger for a month or more between uses would be bad for the battery and a possible fire hazard.

[DenverGP]

Not sure what battery technology your dewalt uses. A home depot listing for Dewalt 18V XRP lists them as NiCad.

Older battery technology used NiCad or NiMH batteries. Those have a self discharge rate of 10-15% in 24h, and then 10-15% per month.
Newer tech uses Lithium-ion, which have a self discharge of around 5% in 24h, then 1–2% per month

[mb504]

That's a pretty quick self-discharge. There are complaints on their site about that.

They are NiCd, so they are an older chemistry.

Any thought about going to a LiOn system? Heck, if you don't use it much, go to a corded drill.

[SideShow Bob]

That's a pretty quick self-discharge. There are complaints on their site about that.

They are NiCd, so they are an older chemistry.

Any thought about going to a LiOn system? Heck, if you don't use it much, go to a corded drill.

Yep, old tech, guess I should be like Duck Dodgers and join the 21st century & upgrade to a LiOn cordless set. The set I have now has lasted me since the late 1990’s and sure has come in handy. I have the full set, drill, sawzall, circular saw and hard case.

[DFBrews]

I run milwaukee and haven’t had any issues see if you can find a lion upgrade battery for your dril