does it damage the battery to leave it on the charger for extended periods of time - such as a week or more?
1361278
I leave mine on the charger all the time with no problem. But then, I use these batteries everyday.
1361279
Not that I have noticed. I would not leave it for more than a couple days, though.
1361280
For a definitive answer I suggest contacting B & D directly via the internet. I personally would not leave the battery in the charger for extended periods because it does get warm and I am not sure if it would/could get hot enough to cause any problem over time. Heat is generally not a good thing for battery life. When charging is complete I put the battery back in its box with the protective cover over the terminals. It usually takes about a week of use to drain a battery and then I replace it with the charged unit from the box and charge the drained unit starting the cycle over again. I don't notice any loss of charge from the charged battery sitting for a week. My weekly usage is blowing leaves, pine needles and sweet gum balls off of 2 porches, a deck and 2 vehicles + cleaning the floor of a 2 car garage.
1361281
No, I leave mine on a wall charger all the time they stay fresh for when you need them
1361282
I leave mine on a charger at all times and it doesn't appear to damage or effect performance. perhaps there is some battery expert out there who can offer a more educated response.
1361283
It has been my experience that it does seem to shorten the life when a battery is left in the charger for long periods, even tho some would say no because the charger is supposed to reduce the charge as the battery reaches full power. I suppose an extended side by side test with several batteries would be necessary to determine a definite answer.I think most companies recommend that NiCad's be charged to full capacity and then used until it has 10% or so left before recharging. Otherwise they develop a memory' and will not use their full capacity after a charge. Li-ion's do not have a 'memory' and do not need to be completely discharged each time. Even so I do the same for both types. It has been my experience that it does seem to shorten the life when a battery is left in the charger for long periods, even tho some would say no because the charger is supposed to reduce the charge as the battery reaches full power. I suppose an extended side by side test with several batteries would be necessary to determine a definite answer.I think most companies recommend that NiCad's be charged to full capacity and then used until it has 10% or so left before recharging. Otherwise they develop a memory' and will not use their full capacity after a charge. Li-ion's do not have a... » Read More It has been my experience that it does seem to shorten the life when a battery is left in the charger for long periods, even tho some would say no because the charger is supposed to reduce the charge as the battery reaches full power. I suppose an extended side by side test with several batteries would be necessary to determine a definite answer.I think most companies recommend that NiCad's be charged to full capacity and then used until it has 10% or so left before recharging. Otherwise they develop a memory' and will not use their full capacity after a charge. Li-ion's do not have a 'memory' and do not need to be completely discharged each time. Even so I do the same for both types. « Show Less
1817351
The charger continues to charge as long as the battery is connected. You should not let it charge more than 5-6 hours or it will overcharge and ruin the battery.
156881
Nothing special about charging. I just put mine on the charger while I sleep. It's always worked for me and doesn't hurt the battery to be on the charger for seven hours.
1557738
The batteries are not protected and neither does the charger. So it is risky to leave it charging for extended period.
158040
Yes it will still remain active while charging. Actually it's best to keep it on the charger while using cause if you don't the battery only last about an hour & and half or 2 hours.
1241459
The charger has warning lights to show when the battery is charged or if it´s too hot and it should be removed from charger (or even when it is defected). In general, I keep it charging for 3-4 hours. It gets fully charged without overheating.
634595
I leave it on the charger whenever I'm not brushing... But it would probably last for several brushes after a days charge.
249210
As I understand from the instructions, you can leave the battery in the charger. It will not overcharge.
915683
This is from the charge cradles product description "if you leave a worn-down battery in for four to 10 hours, the charger conditions the battery with a tune-up mode, and at completion, it automatically converts to trickle charge, so you'll never damage a battery by leaving it in the charger too long."My guess is you can. I would consider it if I used it frequently
405432
I have not used it while on the charger, but it does not take long to charge this so unless you need it done within 30 minutes you will not have this problem
368226
I would NOT leave this on a charger. I believe that battery is meant to be run, up and down to maintain it's ability to accept a charge. Leaving it plugged in is not what it is meant to do.
124097
I've left my Li-ion batteries on the charger for both long and short periods of time (over a month), and had no subsequent issues with my battery.
1227801
Yes, to a point. While no damage is done to the charger or batteries outright there will be over a period of time be a shortened life of the batter itself. As with any rechargeable power source it is best to deplete it as low as you can before recharging. Leaving it constantly plugged in means continuous heat which shortens the life span of the battery.
2209302
yes but if you leave it plugged in all the time i dont know if it will overcharge an damage and damage batteries.hope that helps
1557736
No problem to leave on charge a day or so, but overnight is MORE than sufficient. I would not purposely leave on charge for more than 8 hours, but doing so every once in awhile is fine. I purchased additional batteries, BUT I bought those with even more power for better life.
1557737
I leave mine on charge for days most times. No problem yet. But I'm sure it's good to let it run down sometimes
1855362
I keep it charged all the time, but I don't know how necessary that is or how long it will hold a charge when it is not on the charger. I do know that if I took it off the charger for any amount of time it would disappear and never be seen again (hence why I keep it on the charger).