what is the maximum battery voltage when they are charging - the peak charging voltage?
2033286
I believe it's 8.4 volts but my EBL charger tended to overcharge them to over 9volts. I wouldn't buy these again as they only lasted about two recharge cycles.
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.
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
2082895
The 13.7 volts you're reading is normal. The charge controller is doing its job. It's protecting your battery bank because 16-18 volts being pumped into batteries is not safe or recommended.
1237258
Hi Stephen. I don't know the answer to that. I have not used them because they only charge to about 65 %. I have two sets and the new battery charger. They sit in a box of other junk totally unused for the last year or so. I found it far cheaper and more satisfying to go to the Dollar Store and buy cheap batteries. I get far more pictures.... hundreds more ! Literally. I wish I had sent them back... The cheap foreign ones are far suprior in my opinion. Hope this helps.
2227326
if you have a charger specific to this type lipo battery it will top of at 12.6 volts but you need a special charger
772902
Seriously? They are interchangeable with any other NiMH cell of the same size. Peak voltage off a charger will be about 1.45V. Nominal voltage (the voltage they stay near for most of their usable capacity) averages 1.2V. Minimal voltage at the point where the rated capacity in mAH is realized will depend on the discharge rate but is roughly 0.9V.
1524532
Depends on how many batteries and how discharged they are. I use mine for vaping. Fully charged they are 4.1v. I recharge them when they get below 3.6v. I have not timed the recharge but believe it to be less than 1 hour. The fewer you charge at one time the more voltage is applied to recharge them. I cycle them to keep at least one fully charged and it always is recharged WAY before I kill the current one. In summary, fairly quickly and faster than I require. Your milage may vary.
409135
solar array voltage normal input of 17 to 22 volts maximum of 25 max charge is 30 amps i hope this helps you i have mine hooked to 3 15 watt cells and it is charging very nicely
1580635
the back of the charger says it is a 12V(max) Li-Ion charger. The input is 120 V AC 60Hz. I hope that helps. As a side note, the three batteries I purchased to be charged by this charger have all become duds in just a little over a year. The charger still seems to be working.
1193133
Fully charged agm battery will be around 12.9V. My mppt charge controller blinks when battery charge goes 13.4 and after 1 hour stand by it will go 12.9 V which is sate of full charge (confirmed with Concorde sun xtender rep). But for some reason mt-5 shows 50% and it is wrong. I will find out with monitor manufacturer and update later.
637339
Sorry it took me so long to answer the question. I had planned to measure the charging wattage but have been too busy. There is nothing on the battery that states the current required for charging. So I'll estimate that it would be 10 to 20 watts maximum. Insignificant.
418849
All 4 of my chargers are set for 4.2v.I have had NO problems at that setting But, always charge new batteries as soon as you get them.I charge all my batteries, any size in it.The charger is automatic , stops charging at the correct voltage.George
1157688
Hi Gregory! I just asked the question of the best "proven" way to charge these batts and I'm convinced by the majority of answers is to use the USB end and keep the mAh's the same 1 thru 5, of course. It will take longer, but successful all around, as many have said and I tend to agree. Some have used, me included, a 3.7V wall charger, but I don't feel any longer. I hope that this helps and puts your mind at ease as it does mine!&#128522;
1511271
I don't know. I long ago gave up using both of mine because they only have a charged life span of about 45 minutes. Max. Pretty disappointed.
1860932
Connected in parallel up to the rated voltage of the controller, you can charge more than one batteries. The maximum charging current is 30 Amps.
352699
The charging voltage is specified as 110 - 220 volts, which means that it has an adaptable power converter built in. The discharge voltage, as "gaga" answered, is 2500 volts.