i bought one of these chargers and it charges my lithium batteries in less than a munte ..is that normal?
882963
Check the battery with a voltage meter. A fully charged lithium-ion battery should have a voltage of 4.2V right after your charger says it's fully charged. Make sure you are using the right type of battery. Only lithium-ion batteries can be recharged. Regular 3v lithium batteries sold in a store are not rechargeable and can be dangerous if you try to recharge them. A good working rechargeable Lithium-ion battery should have around 3.6 or 3.7 nominal voltage (meaning that after the battery ran out of juice and left alone for 5 ~ 10 minutes) and measures 4.2v when fully charged. If not, most likely the battery is bad. If the battery is OK, then you might have a defective charger. Check the battery with a voltage meter. A fully charged lithium-ion battery should have a voltage of 4.2V right after your charger says it's fully charged. Make sure you are using the right type of battery. Only lithium-ion batteries can be recharged. Regular 3v lithium batteries sold in a store are not rechargeable and can be dangerous if you try to recharge them. A good working rechargeable Lithium-ion battery should have around 3.6 or 3.7 nominal voltage (meaning that after the battery ran out of juice and left alone for 5 ~ 10 minutes) and measures 4.2v when fully charged. If not, most... » Read More Check the battery with a voltage meter. A fully charged lithium-ion battery should have a voltage of 4.2V right after your charger says it's fully charged. Make sure you are using the right type of battery. Only lithium-ion batteries can be recharged. Regular 3v lithium batteries sold in a store are not rechargeable and can be dangerous if you try to recharge them. A good working rechargeable Lithium-ion battery should have around 3.6 or 3.7 nominal voltage (meaning that after the battery ran out of juice and left alone for 5 ~ 10 minutes) and measures 4.2v when fully charged. If not, most likely the battery is bad. If the battery is OK, then you might have a defective charger. « Show Less
882964
Unless the battery was already fully charged its faulty or the batterys faulty
882965
No this is not normal may be a bad battery if all lights flash or if first time charging it may have been fully charged id test the battery professionally my batteries take from 2-3 hrs for a full charge cycle
882966
That doesn't sound right. Do you have a way to check the battery charge? Are you sure it is at full charge when you take them out? I think one of my friend's had this issue too, each time they charged their batteries, it would charge way fast, but the batteries were never fully charged.
882967
Not at all normal. I would suspect a short in the battery, unless it charges well otherwise. If it charges correctly on another charger, you should exchange this charger.
317523
Judy, I do not know what the previous chargers are like. I suggest you look up the battery and compare it to the current battery charger you have now.
1961458
Without knowing the state of your battery it would be hard to say. Try the recondition button to see if you can get the battery to work, press the large button until recond light is lit. It takes a while to recondition the battery. Modern battery chargers will not charge bad batteries. If you started with a dead battery, then recondition may help. If the battery was okay then you have a bad unit. I would try it on a good battery before sending it back
468102
That depends somewhat on the charger. I have a very compact Energizer charger (#CHDC8) that will charge 4 AA's in about two hours. Some quick chargers are faster, but I've been told fast charging is not good for the batteries.
384982
Hi Brittany, Obviously its a typo. The charger and both batteries I have clearly has 3.8v on both. You should not have any problem at all. Just make sure you use the batteries until they are at least 5%. then let them recharge a full cycle each time. Rotate your batteries and you can conserve battery life by adjusting screen brightness, any live wallpapers and using the TASK MANAGER to turn off any apps running in the background. Also leaving your WI-FI on eats up power.Hope this helps.
1357079
I purchased this charger for my son, as his old charger had died. He said that it did charge both his old ni-cad batteries, along with the newer lithium batteries. It also has a battery life indicator, that shows whether the battery is capable of being recharged or not. Hope this helps. Keith
1473696
The amount of current that flows into your device (phone) varies. Batteries that are nearly depleted will initially charge at a higher rate. Also as a battery gets older it won't charge at the higher rate that a new one will. Just because your charger is capable of supplying 2 amps doesn't mean that it always will. The amp meter is a great tool for finding cables that have broken strands in them and are unable to carry as much current as another one.
866201
I suggest testing the voltage with a multimeter on the main output wires and if its below 6.0v (considering a 2S lipo) your charger may be correct and you have a virtually dead lipo (damaged cells or esc over discharged) or if its above 7,4 it could be your charger (faulty) or one of the wires not making a 100% connection.
704674
Hi, I have lithium ion batteries and this charger definitely charges them with no problems. Bill
1826700
I don't know how you are using the charger. I've had mine since May. I only use it rarely when I am traveling and need the extra boost. If you been charging and discharging the battery daily, you might have created a memory effect in the battery. Lithium battery were not supposed to have the memory effect problem, but it has been found that is not completely true. I would contact Amazon/Jackery to see if they would replace the battery since it's been only a few weeks.
2050537
as far as I know the charger works like a car charger or trickle charger. My batteries usually charge within 3 hours. But the design is meant so your batteries will not be over charged and will not be liable to explode or rupture. It's strictly a safety factor built within the device. The size of the battery matters as well. Hope this helped!
1997779
This charger will not charge 14500 or 10440 cells. According to what is embossed in the charge bay, it will charge 18650/18670 and 17650/17670 batteries. By taking measurements, I can also verify that the moving contacts for the batteries will only close to around 6 cm, which would not be sufficient for a shorter battery. Also, this charger attempts to charge to 4.2 volts (max for 3.7 volt batteries), and unless I'm mistaken, those batteries are 3.2 volt batteries. Hope this helps.
83496
My problem was that it would just quit charging(indicator light would clear)prior to actually charging fully. It was advertised as a "Super Fast" charger, however while Li-Ion can take a very high charge rate, NiH can not and will overheat quickly, sometimes with dangerous results, and even if they don't pop they can/are damaged by high charging. IMHO the charger is s PoS which never worked for me
1782983
Because two batteries charge at close to the same rate, and are not identical in their depletion, the charger stops charging the first battery that's full, charging only the one battery that's left. Sounds like it should be able to do only one.
940428
Mr. C------ I have an Energizer charger, a Panasonic charger and an eneloop charger charger and several different brands of rechargeable batteries and they all recharge just as you would expect in any of the charging devices. Hope this helps. Mr. SJ
739702
I get 2 and not quite a 3rd full charge. I feel like the size of this battery is overstated. I previously had a battery charger that claimed to have 11000mHa. and easily got four full charges out if it. I'm not happy with this current battery charger at all.
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.