can you leave the batteries on this charger all the time or do they have to be removed when batteries are at full charge
1944684
I think that would be a personal choice, some people would charge then remove thinking of battery life. Others not so much.
1944685
I have multiple batteries to recharge,so I keep rotating them. I never thought of any problem with keeping them in the charger.Once they're done,I take them out so I know they're OK to use
1944686
This is the worst product in the Black and Decker line. Buy two single units to recharge your batteries. A little more expensive in the short, a lot less trouble in the long run.
1944687
I've left them in for a reasonable period of time (life of batteries) with no ill effect, though it could possible shorten the battery life. I have no evidence, just a hunch.
376875
These battery chargers will charge on or off and will not over charge, you can leave them on forever.
124095
I do and it seems to work fine. Sometimes I may not use the batteries for six months at a time and leave them on the charager. The charger will shut itself off to keep from overcharging.Lithium batteries, though, will hold their charge longer, even off the charger than the older nicad batteries.
1567078
We leave them on a little while longer without noticing any harm - and nothing in the packaging of any charger I've had suggests you have to get the batteries off immediately. I wouldn't store my batteries there :) But all that happens is the light for the charged battery goes solid and the others continue charging if needed.
1565284
By pressing that red button, you can completely discharge the batteries before charging them. If you don't press the button it will the charge batteries from whatever percentage of charge they have to full charge!I think it's a great charger!
2190134
I cannot answer your question because I haven't tried it before. But according to the manual, it says when the battery is fully charged, the charger will change to trickle charging. Since the electric tooth brush which I am using now also uses trickling charging, and I leave it on the charger whenever I am not using it. I literally leave the electric tooth brush on the charger almost permanently. You may base on this to decide whether you can leave the batteries on the charger for a week or two.
915686
No you can't leave it in the charger indefinitely and as far as I am aware there is NO drill charger anywhere that allows that. Even the fancier Li-Ion chargers that shut off, won't keep the Li-Ion battery topped off. However, since Li-Ion self discharges much slower, it would seem to be the better battery chemistry to suit your needs.
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...
504259
Not sure you really don't want to let li-on batteries discharge completely. It kills their lifespan. It takes about 4-5 hours to charge from 10-15%
2047463
Holding a charge depends on how much you use it. Yes you can leave it on charger for long periods, it shuts off when fully charged.
2190133
Once the batteries are full the charger will continue to trickle charge at around 12mA. I've left batteries for a couple of days no issues, I don't know what happens after a week though
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.
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.
1983804
Store your batteries fully charged. Also, try to avoid letting lithium ion batteries (like the ones in cell phones) discharge completely after the initial 4-5 cycle "break in" period.. Repeatedly draining them all the way can shorten battery life. Most battery chargers have a protection circuit built in so leaving a battery in the charger past the time it is fully charged will not harm it.
1361278
I leave mine on the charger all the time with no problem. But then, I use these batteries everyday.
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.
1265416
Nothing, the charger has an automatic shut off. They don't even get warm. Well , I should say the charger goes into trickle charge mode. But it will not damage charger batteries.