Does the charger stop putting a charge to the batteries when they are fully charged? and how do I know when they are?
932735
yes. It's been awhile since i used the charger but you can tell when it is finished either by the lights going out or turning green -- i can't remember which happens but you will know.
1964570
I would say yes. This charger allows you to leave the batteries on the charger so they have a full charge when you put them in.
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.
1985156
Dan, there is no indicator of a full charge. I did leave the batteries in the charger all winter and they have worked fine this spring. My biggest complaint is the relatively short charge life of the batteries. Jim
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?
656957
When the battery is in the charger make sure the plus and minus line up, when it is plugged into an outlet the led will light up and indicate what percentage the charge is. Let it charge until the 100% is lit.
1415624
I don't remember if it had any charge when I got it, but I always fully charge the batteries so they are ready for use. I don't want them to die on me when I need them.
1792489
I'm not sure, similar to other chargers it has a red blinking light while charging and a solid red light when charged. I have assumed that when the solid red light is on it stops the charge mode and doesn't continuously keep feeding juice to the battery. I've left several batteries on the charger for a week or two before and when I grabbed the battery it was not warm at all and I've not had any problems with the batteries.
1276558
I put the batteries in the charger that has indicator lights. So when the light is green, the battery is fully charged. If you do not have a charger with indicator lights, you might want to invest in this: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords;=battery+tester I have a very inexpensive one of these that I use to test the loads of batteries I have in the house.
1474056
I haven't "timed" my batteries for actual charge time, however, if the OEM battery is still charging after being on the charger overnight, it may have been run down flat - that it was drained down so far, that it needed that much charge to come back to life. Of course, if the battery has been declining in capacity, it's entirely possible that it is "done"...they do die. I try to keep some charge in all my batteries all the time, and never let them go flat (zero charge).
1261067
I leave my battery on the charger until I get ready to use it and the battery is always fresh, the charger cuts off when the battery is charged to the best of my knowledge.......
2244650
yes. they stop charging when the battery is full. hince "intellicharge".. love mine.
1835586
I have never had my batteries give me a problem nor have they ever ran a charge down. I do however believe you can replace them but if you have another problem like you didn't do a full charge before you ever used them, then I believe that would cause the charger to max out with less of a charge and never do a full one.
2111067
I believe the charger stops when the batteries are full and just maintains them as is. Not sure how long term usage will affect them. However, I have been impresses at how long the rechargeable batteries will last without using them and just sitting in the flashlight. I'm pleased so far with their brightness (like day light to me) and how long they last without recharging. I originally bought the batteries to use with my bike on 25 mile long night rides. It took about two or more batteries for that in order to maintain the brightness I desired.
1827222
Yes, it does stop charging after the battery is fully charged. Older battery generations such as NiMH need to stop receiving power after fully charged, otherwise this will damage the battery. But don't worry, the Tenergy Smart Charger will automatically cut off charge when battery is fully charged. This is why you see the word "smart charger" in the description.
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!
1524535
Yajvendra, I can't give a good answer. I place batteries of different states of discharge in the charger and go about my business. When I get home a 4-5 hours later, they're charged. I don't know at what point they've each reached their charged state.