Can the batteries be left in the charger until they are needed - days or weeks - without being damaged? Or do they need to be removed promptly?
1190738
Yes. They charge and then they just maintain. What you're suggesting is what I've been doing for quite some time with no issues at all.
1190739
It does have an overcharge safety, but I'd never advise leaving these types of batteries in any charger for more time that it takes to charge them, let alone days or weeks. You're just asking for trouble in that scenario.
1190740
There is no reason to do that as once charged it serves no purpose to leave them in.
1190741
The instructions say to take them out when charged. You could leave them in for a while longer but I had a charger smoke on me doing that, so I take them out and put them in a special box I got from XTAR
35130
It might make the batteries not recharge quite as many times, but I do it all of the time and have had my batteries (Enloop) and the charger for more than a year. I do recommend that the charger be put in "soft charge" mode if you are going to leave the batteries in for more than 4-12 hours.
1035281
I read somewhere you shouldn't leave the batteries and a charger. I have for tools now that run on those batteries. I use them in a commercial capacity And have for 5 years.
940252
I have a couple batteries that don't hold a charge long so I leave them in the charger and they usually get the job done before they lose the charge again. I always keep one in the charger.
1671932
I have accidentally left these batteries in their charger overnight and maybe for a day, with no noticeable negative effects.
48204
Not required. I keep them inside. :-) I use rechargeable Eneloope batteries. Sometimes keep them inside for 4-8 weeks without single shot. No problems! The batteries are still strong and powerful.
2244647
You should never leave a battery in a charger unattended. There is always a slim chance of a battery or charger going bad, violently.
113286
I would not. the plastic keeps the batteries together and allows the to fit in your device. The plastic stays on it is somewhat heat resistant. but they can be a fire hazard if you keep the in a charger to long. I use a smart charger so I do not have to constantly moniter how warm they get.
1792488
It doesn't have a recondition cycle and as far as I know leaving a battery on the charger won't harm it.
51070
According to the instructions, it is ok to leave the battery in the charger after the battery has reached full charge. It has been my experience with DeWalt products that no harm has been done if you don't remove the battery from the charger until you ready to use it.
2190135
Considering this charger has a test/refresh feature, leaving the batteries on the charger will not damage them even though they are being trickle charged. Though i usually will not leave batteries on a charger for much longer than when it says it's full due to the possibility that they could weaken the batteries causing you to leave the batteries in refresh mode which takes up to 20 cycles depending on how bad the memory effect is on the batteries.If you buy the staycharged batteries that don't lose charge within a year there is absolutely no need to leave them in the charger, but if you got older batteries leaving them on will keep them charged whenever you need them. Considering this charger has a test/refresh feature, leaving the batteries on the charger will not damage them even though they are being trickle charged. Though i usually will not leave batteries on a charger for much longer than when it says it's full due to the possibility that they could weaken the batteries causing you to leave the batteries in refresh mode which takes up to 20 cycles depending on how bad the memory effect is on the batteries.If you buy the staycharged batteries that don't lose charge within a year there is absolutely no need to leave them in the charger,... » Read More Considering this charger has a test/refresh feature, leaving the batteries on the charger will not damage them even though they are being trickle charged. Though i usually will not leave batteries on a charger for much longer than when it says it's full due to the possibility that they could weaken the batteries causing you to leave the batteries in refresh mode which takes up to 20 cycles depending on how bad the memory effect is on the batteries.If you buy the staycharged batteries that don't lose charge within a year there is absolutely no need to leave them in the charger, but if you got older batteries leaving them on will keep them charged whenever you need them. « Show Less
1227799
yea it will be fine to leave it plugged in and the batteries in. they are lithium ion type batteries the same kind in laptops and cell phones. so they will charge up then the charger will just keep them charged till your ready to use them, i dont know about long term though like over a week or two probably wouldnt be great for them.
340683
No, not recommended. If the required load to maintain the two batteries (assuming they are wired in parallel) is unbalanced, this can damage the charger. These are cheap chargers, save yourself some grief and buy two.
958987
Yes you can leave it in the charger when not using. I had some problems charging in my garage when the temperatures were above 90 degrees, the red light flashes on the charger. I had to bring the charger inside the house and let it cool down before the green light would flash and it would charge. It takes about 5 hours to charge completely.
80907
Yes, after you mount your unit and attach the charger wires to the batteries you are good to go, no need to remove them from the batteries.
1886905
Yes. Just put em' in and leave them. These chargers go into "Energy Save Mode" when the battery is charged, preventing damage to the cells. They come back on only to "trickle charge" when necessary.
1268299
No. I've had it over a year now and there is no sign that the batteries have weakened. I usually place it back on the charging station after use, but sometimes leave it off the station for a week or more and the batteries are just as good as if it had just left the station.