Is it possible to overcharge and wreck the batteries or does the charger have a protection cut off?
1638104
It has a display for the battery banks and shows the charge progress. When a battery is done charging, it shuts off that bank...It's an awesome little unit!
1638105
I believe the charging circuit monitors the voltage and as the voltage reaches the maximum for that type battery the charging stops. The lights turn from red (Charging) to green when fully charged. It is recommended to take the batteries out once charged and use them. If its not a device I have to have I just take the dead batteries out and charge them and put them back in. They charge quite rapidly. If the battery is bad it won't charge them. I love it, especially the dual usb chargers on the front. I can quick charge my phone with the 2 amp or leave it on all night with the 1 amp. Per your question no, I don't believe it will overcharge a battery. I believe the charging circuit monitors the voltage and as the voltage reaches the maximum for that type battery the charging stops. The lights turn from red (Charging) to green when fully charged. It is recommended to take the batteries out once charged and use them. If its not a device I have to have I just take the dead batteries out and charge them and put them back in. They charge quite rapidly. If the battery is bad it won't charge them. I love it, especially the dual usb chargers on the front. I can quick charge my phone with the 2 amp or leave it on all night with the 1 amp. Per... » Read More I believe the charging circuit monitors the voltage and as the voltage reaches the maximum for that type battery the charging stops. The lights turn from red (Charging) to green when fully charged. It is recommended to take the batteries out once charged and use them. If its not a device I have to have I just take the dead batteries out and charge them and put them back in. They charge quite rapidly. If the battery is bad it won't charge them. I love it, especially the dual usb chargers on the front. I can quick charge my phone with the 2 amp or leave it on all night with the 1 amp. Per your question no, I don't believe it will overcharge a battery. « Show Less
1638106
There is a cutoff and I believe that the unit automatically dissipates the charge slightly if the batteries are left in the unit beyond the charge up time.The marketing blurb states " Automatically protects against overcharge and short circuit." The only danger I remember is in leaving the unit on with no batteries in it at all.
1638107
I havent noticed any overcharging issues with mine. It indicates when each battery is fully charged.
29033
Hi Joe. I didn't read the Operators Manual until you asked this question. Under Maintenance and Storage, it reads "No battery pack damage will occur if the charger and battery are left plugged in." Thanks for asking.
1552152
FYI, the charger stops charging after the battery is full so it won't burn out your battery!
1756713
You cannot overcharge the battery so don't worry about it. Also no harm done if you undercharge. I have had mine for years, and to be honest do not charge it regularly, and have not had any problems. These are really just guidelines.
498289
Yes, it will regulate itself to not overcharge the battery. However, I would personally consider an unattended charger to be a fire hazard.
247754
Not that I have found. We keep ours plugged into the charger, just a blue light that it's charged and have not had a problem with over charging.
60086
I havent had any issues with the charger draining the batteries Ive left it unpluged for 6 weeks and didn't lose a volt on my guage. You might want to check to see if anything else might be draining you batteries its uncommon for a charger to do that.
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.
1772836
I probably wouldn't if it were mine. Some electronics and batteries may be damaged by a power source that provides too much current (Your charger needs .3 amps and this supply puts out 1 amp). The device I am using with my power supply is a cheapy unit that is inexpensive, so no harm if it gets fried. I am also using my power supply to take the place of batteries, not for charging batteries like you're wanting to do. My recommendation is to pass on this as it might cause damage. Good luck :-)
735898
This is not official, since there is no doucmentaion on this subject, but the way i do it, is pull it out, when the battery charger stops its animation (empty, 1/4, 1/2, 3/4, full and repeat) Damn i wish there was more documentation that came with this player. It could've been great. And yes, i already overcharged mine, it only last now for about 4 hours after a day of charging.
2244648
No, you should remove batteries when they are fully charged. The unit has built-in protection to prevent overcharging but why put it to the test continually? The risk of fire far exceeds the benefit of having a fully charged battery.
2156264
No. I tried the same thing. But there is circuitry to prevent overcharging which would damage your batteries that is missing in the circuit.
2169638
Yes. The charger is a smart charger. When the battery is fully charged, it goes into a hibernation mode and will maintain the battery, without overcharging it.
1567075
You can leave the batteries on the charger to no detriment.I've left mine on for days, even. Do disconnect them if it stays in "charging" for entirely too long (I'd say over 24 hours) as that might blow your batteries up. I've never seen this though.
786937
Hi there is a switch inside the battery compartment, if that switch is set to the Nicad position and you put rechargeable cells in the unit they will be recharged with a quite sophisticated charger that does not overcharge or damage the battery. Hans. J Weedon.
1988946
That's not the way to keep the charge up The charger won't know which battery is low so it will end up I Overcharging the other batteries I charger 1 battery Just a suggestion
2231293
I believe It will not harm the battery if it is left in charger all the time, because when Green Light on the charger is on it stops charging.