Does it charge each cell separately? Hi, Can anyone tell me if this charger (which claims to have overcharge shut off protection) will shut off when the first battery is fully charged or can it detect and charge separately for each battery?
590551
Not true. You can charge any number (between 1 and 4) of AA cells at a time. You can even mix and match AA with AAA cells.
634453
I do not have this charger anymore, but if I recall correctly: it will turn off. However as long as the battery is completely charged it is in my opinion just cosmetic. R.
700384
I don't know of any battery charger that shuts off automatically. I usually leave my charger unplugged until the night when I want to use it. I found out from others here that leaving it plugged in all the time shortens the battery life. That's exactly what I was doing. Since you asked this question, I plugged in my charger with the battery and found out that when the battery is fully charged the red light on the front changes from bright red to a more dimmed red. Hope this helps!
386161
Anyone crack one open and see if this is anymore than a transformer and a couple diodes or is it an active charger that dials back the voltage or current when the battery is charged? Thanks. (I know it's only $8, but still wondering)
1578219
This has never happened to me and I have 5 of these chargers. They are not very well made but they worked for me. What kind of battery were you charging on it and did you set it to the right cell setting when you charged said battery?
1638107
I havent noticed any overcharging issues with mine. It indicates when each battery is fully charged.
1665889
Yup! I use it on my 12 Volt boat batteries and my 12 Volt car batteries. Like it because it shuts itself off when reaching full charge. My older chargers of a different make could overcharge a battery if left on too long. It is a tad slower than some chargers, but I believe a slow charge is better than a too fast one. I disconnect it when I notice a full charge is reached and in a few months will recharge the battery if the battery is left unused. Hope this helps.
2157426
Joe: There are four sockets; each charges independently. It's recommended that you not leave charged batteries in the charger, but my guess is that's an "err on the side of safety" statement. The charger is clearly designed to cease charging when each battery is "topped off". This charger is one of the few things I've ever purchased that, after more than a year, I can say works exactly as I would have hoped it would.
1438506
I bought an extra batt from Amazon as well and both batteries, the one that came with the phone (tmob s3) and the recently purchased one work ok. I think the newer battery is flaky. It only shows about 80% after charging overnight. Doesn't say that there's circuitry in the charger to prevent overcharging, but it does take a looong time to charge. IMO the slow charging cycle extends the life of the battery. There's a battery charge indicator light that shows RED when charging and BLUE when the battery is fully charged. Hope that helps.
519421
I have never removed this battery since I bought it and it has received several charges. i try not to leave it on the charger since I have heard, cell batteries in general, do not do well when left on the charger at a full charge.No specific issues with this specific battery however.
1148128
Hello Stefanie, the battery pack charger is always ready to go once its fully charged (first time, only) and is intentionally made without an on/off button. The "touch switch" on the front of the charger will tell you how much "juice" or charge remains in the battery pack by the lights that show up when you touch the little hand (or touch switch): 4 lights = 100% fully charged, 3 lights = 75%, 2 lights = 50% and 1 light = 25% and its time to make a plan to recharge the battery pack. Thanks for asking, if there is anything else, I'm here, Sherlock hones
1764360
Well, I don't know, but it seems to me like the problem is the opposite. I.e. it turns itself off when one battery is charged, but there are three that are not.
852854
I would suspect it does not have overcharge or float mode to protect from overcharging. There are several out there that are made specifically for maintaining a full charged 12 Volt wet cell battery for around $10 to $15. I use one by Cen-Tech for an old Jeep I have to keep the battery charged.
1037713
Well, my experience is that each slot operates on it's own. Given slots 1, 2, 3, and 4. I insert a battery in slot 1, accept "Charge" as the mode, go to 800 mamp, accept that, and put a battery in slot 2. Slot 2 then lets you select the charging mode (charge, break-in, refresh, discharge) but slot 1 setting should not be affected. I just tried it with 3 batteries and experienced no problems. One thing to consider is this. By accepting, you press "Enter". For charging, you press "Enter" for charging, then set the charge rate with the up and down arrows. Then, you have to press "Enter" again for the charging rate. It may look like you had chosen the charging rate by pressing the up and down arrows, but to complete the setting, you have to press "Enter" again. I don't know if that's your issue, but that's my best guess.
1286580
Basically an old wive's tale at this point. Modern chargers mostly detect when a battery is full and stop charging (or drop back to just trickle charging). I wouldn't worry about it unless a manual for a device specifically says to disconnect the charger after a full charge. There's so much mythology and repeated nonsense out there about batteries, chargers, and how they work!
2268703
It seems to shut off when full charge is reached, don't know the answer too second question.
1482559
Yes, this charger will shut off individual cell's charging current as soon as that cell is fully charged. However, the indictor light only goes off when all cells are fully charged.