When charging batteries in this, does EACH slot need to hold battery? Or could one charge, say 1 battry or 2 or 3 instead of always 4 per charge?
1071496
You can charge 2 or 4 batteries, but they must be charged in pairs. You cannot charge 1 or 3.
1071497
I believe you need to put in two batteries to charge either slots 1 & 2 or 3 & 4. I tired to do one once, but the charging light never came on, but mine is a very old version.
1071498
U can charge just 1 2 3 or 4 whatever u like. They all have there separate pins.
2206531
Yes, but would have to ask, why 2 charge controllers to 1 battery or battery bank ?
1704351
I advise u not to charge it with a different charger b'couse it may cause defect on it . The battery can support a certain A or volts but it was designed to measure when it's full charged or empty , what i'm trying to say it's u can short the batery life if u use the wrong charger .
2031553
It is 1 pos and 1 neg. The way you charge more than 1 battery is by connecting them in series. I.e. you want to charge 3 at once you connect them series ( positive to negative and so on). So if you read voltage between the first positive and the last negative it will be 36v. Thus you select in the charger 36v and either 5 or 10 amps depending on the size of the batteries. Btw, it comes with several wires so you can connect up to 6 batteries in series (72v)
1366824
The Batteries will indicate red when weak and the light will turn green when charged. If the charger is left on, the charger cuts down to a maintenance charge.( trickle) . Yes you can charge just 1 battery at a time.
1867691
I commonly charge two 36v lead batteries at the same time using separate electrical outlets. I don't know anything about charging lithium batteries.
1064402
Yes. The provided charger will charge 4 AAA batteries at once -or- 4 AA batteries at once -or- 2 AA & 2 AAA at once. There is a recessed area that fits the AAA batteries at an angle. I wish the description was this detailed!
1773130
It will charge one at a time but it can charge pretty much any batteries you have. It works for all types and scales of batteries. Hope this helps.
1614242
No this charger will only hold 2 batteries at a time. It will not charge AAA batteries.
1474943
Yes, although I would parallel no more than three. Also, if the batteries are of differing ages, it's not a good idea, as they will respond differently to both charging and pulsing, and a defective battery may load a good one. In general, batteries charging in parallel should be isolated from one another by a diode in series with each battery. This will reduce the charging voltage slightly, and thus will extend the recharging time.
2205817
Well you have to put at least two batteries in at a time and there is a light above each spot for the two battries, so there are two lights. When you put only two battries in the lights will alternate back and forth to "find" the battries then one will stay on, green, above the battries you put in to tell you they are charging good. The empty spot will have no light. Then when the charging is complete the light will just turn off. I can't remember but I think the instructions said something about blinking and other colors like maybe orange or red to indicate "not charging" or "bad/used up" battery. But the short answer is yes green while chargeing then off for done and they can't be over charged. Well you have to put at least two batteries in at a time and there is a light above each spot for the two battries, so there are two lights. When you put only two battries in the lights will alternate back and forth to "find" the battries then one will stay on, green, above the battries you put in to tell you they are charging good. The empty spot will have no light. Then when the charging is complete the light will just turn off. I can't remember but I think the instructions said something about blinking and other colors like maybe orange or red to indicate "not... » Read More Well you have to put at least two batteries in at a time and there is a light above each spot for the two battries, so there are two lights. When you put only two battries in the lights will alternate back and forth to "find" the battries then one will stay on, green, above the battries you put in to tell you they are charging good. The empty spot will have no light. Then when the charging is complete the light will just turn off. I can't remember but I think the instructions said something about blinking and other colors like maybe orange or red to indicate "not charging" or "bad/used up" battery. But the short answer is yes green while chargeing then off for done and they can't be over charged. « Show Less
793595
No, This charger seem to have enough brains to know how to charge the batteries of all three types. No to your second question. I don't think you would want to charge the batteries any slower. It's slow enough. I charged about 110 batteries so far . Only one would not charge. Great charger. Alan Doucette
342877
8 Charging Slots -- capable of charging 1-8 NiMH/NiCd AA/AAA batteries at a time
1205729
Yes, you can charge one battery at a time. There is one comment worth mentioning-of these type chargers be very careful they are very cheaply constructed and can break easily - never force batteries in with pressure. Three of four of these charger have failed, the first was first time usage when frame broke, one just doesn't work after using it maybe half a dozen times, the third charger will not charge batteries. I like the batteries and have about thirty of them not one has failed as of yet. Consider the batteries as sold separately and find a better built charger.
2278813
No. Batteries have to be in sets of two, so you would need another battery to bring total to four. Or do two until charged, take one out and put in the uncharged one leaving in one charged battery. I know its a hassle, but Amazon Basic charger works the same way.
1051496
Depends on how much you're load is. Two battery s will stay charged no problem if you are not loading and charging at same time. However, once batterys are discharge it will take a half day or so to recharge. If you want a consistent load you will need to get an extra panel or two to do both at same time I have been happy with the bundle so far. I can run a 60 tv or floresant light for 6hr or so off of 1 reg bat.
2129988
It is just a battery holder. You need two batteries in it. You existing battery will fit in one slot. You also have to remove the existing battery door(there is a place to hold the door in the grip.