I recently ordered a mutant clone that is sexy AF!!! And it came with a keeppower 26650 40A 4200 mah battery with a small single cell charger. I putting it on the charger around 08:30 this morning and it's still glowing red/orange at 19:40. This is the first cycle but I wouldn't think it to be this long. I put one of my 18650's on to test it and it indicated green (charged). Any tips? I hate to write it off as bad just yet seeing as how it's my first 26650 and I don't know much about their cycle times.
26650 charge question
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Just an FYI -- The test results on your battery don't look great. At best, they are 20A continuous. I wouldn't trust the charger either for mod batteries. Keeppower 26650 40A 4200 mah
How to Spot Fake Sony Batteries
Only buy batteries from a reputable supplier (not ebay or Amazon) as there are many counterfeit batteries being sold. Here are several reputable battery suppliers in the US.
* RTD Vapor
* Illumination Supply
* Lighthound
* Orbtronics
Check out a blog post by Baditude (our resident battery/safety expert) regarding batteries and chargers
Battery Basics for Mods
- choose the safest and right battery for your applications here. Includes a list of name brand, high-drain, safe-chemistry batteries with mAh & amp ratings in 18350, 18490/18500, and 18650 sizes.
How to Spot Fake Sony Batteries
Only buy batteries from a reputable supplier (not ebay or Amazon) as there are many counterfeit batteries being sold. Here are several reputable battery suppliers in the US.
* RTD Vapor
* Illumination Supply
* Lighthound
* Orbtronics
Check out a blog post by Baditude (our resident battery/safety expert) regarding batteries and chargers
Battery Basics for Mods
- choose the safest and right battery for your applications here. Includes a list of name brand, high-drain, safe-chemistry batteries with mAh & amp ratings in 18350, 18490/18500, and 18650 sizes.
I'm not really worried about the amp limit on it. Im using my Veritas at .7ohm single coil. I've mainly used the 20a efest batteries. I'm just curious as to if the time it's taking for this first charge is normal or if I got a bad cell. I do appreciate the info though and I did a little research prior to ordering. Like I said. I'm not too worried about the limits of it though I'm well within what your research shows.
What is the output on that charger?
A fully discharged 4200mAh battery will take:
A little over four hours with a 1000mAh (1 amp) charger
A little over eight hours with a 500mAh charger
About 17 hours with a 250mAh charger
A fully discharged 4200mAh battery will take:
A little over four hours with a 1000mAh (1 amp) charger
A little over eight hours with a 500mAh charger
About 17 hours with a 250mAh charger
Vappower IMR 26650 4200 mAh - Kidney Puncher
This is the battery I have. I wrote keeppower but meant to put vappower. I read they are the same cell though.
This is the battery I have. I wrote keeppower but meant to put vappower. I read they are the same cell though.
To be honest I don't know. It came with the battery. All the writing on it is in Chinese/Japanese (i don't know the difference) im just trying it because my other 18650 charger won't work as the cell is too large. I'm ordering an efest luc
The curves look very similar to the Keeppower, just keep that cell below 20-25 amps and it will do just fine.
If you can take a good picture of the writing on it and post it we may be able to help figure that out.
The Efest Luc is a good charger
Actually, it's more complicated than that. Lithium cells only get charged at constant current up to their cut-off voltage, but they're not fully charged at that point, so what happens next is a constant voltage charge (while the charger monitors current) until the current drops below some threshold. Bottom line: It will typically take somewhat longer than the first-order calculations above.
That's very likely correct. The battery should have come at around 3.6 volts, so just under half charged. Even if it were almost completely discharged, at 450 milliamps it should not take longer than 11 hours to charge. What is the battery voltage now off the charger?
I conveniently misplaced my multimeter. I did put the battery in the mod and it DID fire so it may just be slow rolling. Like I said, it's a cheap free charger. If it's not charged soon I'm gonna try to charge one of my 18650's on it just to see
So that shows capacity at a steady climb and besides that it is a graph for charging at 1C not what we are talking about here in this thread. When charging at a rate well below 1C the graph looks totally different.
Apparently the word "steady" means something different to you than it does to me. To me, that would be a straight line, which that clearly isn't.
PS/Edit: Oh, and if that's a 1C charge, how come it takes 2.5 hours to get the battery to full capacity?
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