when batteries are fully charged on the charger is it okay to leave the charger/batteries plugged into the wall or does this wear down the battery?
1716169
The charging unit does not appear to charge anymore (it's about a month old and maybe a week or two in use). I will try a third 9v battery to see if we can get it to charge later on today. However moments ago I tested for any voltage and expected to see none; to my surprise the charging unit appears to be allowing 22 - 23 volts through. Does anyone know if this charger is prone to problems? As soon as I locate the batteries that were delivered with this unit I will use them to test on this charger.If anyone has any info please email me at springfieldcomputers A T yahoo D O T com. Thanks The charging unit does not appear to charge anymore (it's about a month old and maybe a week or two in use). I will try a third 9v battery to see if we can get it to charge later on today. However moments ago I tested for any voltage and expected to see none; to my surprise the charging unit appears to be allowing 22 - 23 volts through. Does anyone know if this charger is prone to problems? As soon as I locate the batteries that were delivered with this unit I will use them to test on this charger.If anyone has any info please email me at springfieldcomputers A T yahoo D O T... » Read More The charging unit does not appear to charge anymore (it's about a month old and maybe a week or two in use). I will try a third 9v battery to see if we can get it to charge later on today. However moments ago I tested for any voltage and expected to see none; to my surprise the charging unit appears to be allowing 22 - 23 volts through. Does anyone know if this charger is prone to problems? As soon as I locate the batteries that were delivered with this unit I will use them to test on this charger.If anyone has any info please email me at springfieldcomputers A T yahoo D O T com. Thanks « Show Less
1716170
My experience is that it will wear down the battery. The best result is to charge it for three hours only and take it out.
1716171
The EBL-840 user manual says under the title "Cautions": "Cutting off the power supply when it stop charging". Does it mean that the user should cut off the power supply when the LED went off after battery was charged?
2205429
I don't know the answer to the question, because it depends on the design of the charger; specifically, does it completely remove charging current when it is finished, or does it leave a trickle charge. If the latter, then you need to check with the manufacturer to see if that would be harmful to the battery. I suspect that it might be harmful.
1634504
I would recommend unplugging when not charging. I plug mine into the charger every couple of days while driving and it has never run the battery down dead.
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
2244652
the instructions say if a battery is left in the charger for more than 20 hours, the charger switches off power to that battery(s). But as others have saidthe best thing to do is remove the battery after the charging is complete.
2211255
Just a couple of guesses. I have two chargers - one never worked - thought it was the battery, but the batteries work when charged on the charger that works. Somewhere in their info I read that the batteries shouldn't be drained down to zero - has that happened?
2062954
I would ASSUME the batteries are not drained while plugged in to the power supply (which does not answer your question - I realize that). However, you should ALWAYS take the batteries out of a unit when the unit is plugged for any period of time (or not in use for any period of time) because batteries will leak and ruin the device. I have had several sets of different brands of batteries leak in the last few years.
1259316
No. I leave mine plugged in all the time and i doesn't seem to damage anything. i've used my drill for over 8 years and it still works great!! I love it so much I bought a second drill. I lost my charger on a job site and ordered this charger to replace the lost one. Neither the drills or the chargers have worn out and my battery holds a charge a very long time. LOVE this product!!
952492
Its noti have had mine for almost a year and recharge it directly from the wall with the included charger....i guess unless you run at max and want extra batteries but i have never had that concern
1147219
I leave mine on the charger all the time. I believe its better for battery life to run the battery down before rechargingso don't be afraid to use it...
1997787
No. You can use rechargeable batterys and regaler batterys but I wouldn't leave batterys in it while using the wall chargers.
600536
Yes, when I am not using it, I do leave it on the charger. I tried not putting it on the charger for a while, but it doesn't have as much power as when I leave it on.
1503534
You're not supposed to leave it on the charger if it's plugged in. It will lose the battery life sooner. Only charge for four hours when needed.
1410388
Yes, the charger has a fold down plug and plugs directly into the wall. I have 2 batteries for my camera, I keep a fully charged one stored in the charger in my camera bag, and the other is in my camera. When I need to switch batteries, I have the charged one ready to go, and then I put the used battery and empty charger back in my bag to remind me to charge it up. While it is charging, I do not close my camera bag, as a reminder that I need to put in the charger and battery. I hope this helps you.
236343
Keeping it on the charger base all the time whether it needs to be charged or not is the worst thing you can do to it. It will shorten the life of the battery. I wear mine right down to where it is not brushing at all then and only then I put it on the charger base.
1417374
All Dewalt batteries should be left in there chargers pluged in when not In use. They will have a longer life. Dewalt designed the chargers to maintain and replenish a charge only when the battery needs it. I have many Dewalt tools and have talked directly to Dewalt about this . Hope this was helpful.
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.