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charging safe
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hotrod351 Offline
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Post: #1
charging safe
i just ordered a EFEST V4 LUC UNIVERSAL LCD CHARGER to charge my Efast 18650 batteries, i have one of those single battery chargers that you get on ebay with two batteries for $15.00 but for it to charge one of my 18650 batteries it take almost 24 hours. now it does charge 18500 and 18350 in 4 or 5 hours but the larger 18650 is taking way to long. the Efast V4 has a 2 amp option for charging two batteries at a time and while seeing reviews on the charger i caught where someone said it  wasnt good to charge 18650 batteries at 2 amps because it would shorten there life. guess its like a quick charge. any one know anything about this. guess if i have to charge them at .5 amp then ill have to buy a few more.
16-12-2015 11:38 AM
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ADIE37 Offline
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Post: #2
RE: charging safe
Hi there using my experience with charging batteries there are two rules of thumb never discharge your batteries to fully flat this will dramatically shorten the life of your battery this is because the battery doesn't have a memory like the good old days of nickel cadium and nickel metal hydride types mostly used in rc models I know but only an example lol the other rule is never charge over 1x the capacity I.E if you have a 2500mah battery you can safely charge at a maximum of 2.5amps no higher or things may get a little toasty you may find the cell warm to the touch keep a check on it and never leave cells unattended while charging I think that is just good practice. Charging at higher rates personally I have never had a problem and I have and still do charge lipo's, A123 packs and Li ion cells at there capacity in amps remember 2500mah=2.5amp and you won't have a problem just don't try charging at higher rates than that hope this helps Adie  
16-12-2015 12:08 PM
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Darkspeeds (12-17-2015)
gentlydoingit* Offline
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Post: #3
RE: charging safe
@1 amp charge should take around 3 hours dependant on battery level. I dont go over that as theres no need. 
Check the charger actually means 2 amp per channel not 2amp devided by channels. 2 amp per channel would be a 4amp charger, should say somewhere. 

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16-12-2015 12:24 PM
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hotrod351 Offline
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Post: #4
RE: charging safe
[b]0.5A/1A can charge 4pcs : 10440/14500/14650/16340/16650/17650/17670/17350/18490/18500/18650/26650 2A can charge 2pcs : 26500 and 26650 batteries. so i gather that a 18650 battery shouldnt be charged at 2 amps. charge at 1 amp. seeing as the charger i have now only charges at .5 amps that should be a big improvement.[/b]
16-12-2015 02:02 PM
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