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My charger and batteries are hot
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#1 (permalink)      8/9/2013 10:15:32 AM US Central   quote/reply + tips
keltu
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My charger and batteries are hot
I received this charger today, and this battery set: https://www.fasttech.com/products/1233700
I'm charging both batterys, but what troubles me is that both charger and the batteries are getting really hot.
Is this normal with this kind of li-ion batteries or something is faulty?

Also i'm charging them for about 2 hours already (if not more) and there is only 1 led light up and 1 blinking (on both batteries), is this also normal that they charge so long?

Edited on 8/9/2013 at 10:17 AM. Reason:
#2 (permalink)      8/9/2013 10:23:49 AM US Central   quote/reply + tips
atetuna
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What's the voltage?
#3 (permalink)      8/9/2013 10:25:06 AM US Central   quote/reply + tips
keltu
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It was about 3.50V before i put them in charger.

Edited on 8/9/2013 at 10:30 AM. Reason:
#4 (permalink)      8/9/2013 10:32:06 AM US Central   quote/reply + tips
atetuna
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What about when it was hot?
#5 (permalink)      8/9/2013 10:34:43 AM US Central   quote/reply + tips
keltu
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I didnt check, now i removed them from the charger and it says 3.93V (still 1 static led + 1 blinking on both)
#6 (permalink)      8/9/2013 10:40:28 AM US Central   quote/reply + tips
atetuna
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That's about 75% charged.

My chargers seem to get warmer when it needs to charge a lot, and coming up from 3.5V is a lot. I'd let it cool down and try again. I doubt it will get that warm this time. Definitely keep an eye on it though, and if at all possible, charge it in a safe place, like away from curtains and other things that can catch fire easily...at least until the charger earns your trust.
#7 (permalink)      8/9/2013 10:44:28 AM US Central   quote/reply + tips
keltu
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I think you're right, now they are not that hot anymore, and charger either.
Homever for the first 30min of charging from 3.5V, charger did shut down itself (all leds turned off), probably due to temperature?
#8 (permalink)      8/9/2013 11:13:52 AM US Central   quote/reply + tips
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socom57
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I have the same charger, it's a good one. It takes about 4 hrs to fully charge a depleted battery...they will heat up a bit. just let the charger complete the charging cycle..
(remember never leave the battries charging unattended).
"A little 'Critical Thinking' goes a long way".
#9 (permalink)      8/9/2013 11:40:14 AM US Central   quote/reply + tips
keltu
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I just checked voltages of the batteries, my multimeter says it's 4.10V and charger is still indicating 1 static led + 1 blinking.

Is this normal too?
#10 (permalink)      8/9/2013 11:44:45 AM US Central   quote/reply + tips
Gems295
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The 3 yellow lights blink then go solid/static as the charging cycle progresses, first the bottom one will blink and go solid, then middle one the same, then the top one, when they're all 3 solid it's finished charging. I've been using mine a week or so now, and mine gets quite warm, but every charger i've had has done that.



Edited on 8/9/2013 at 2:01 PM. Reason:
Vaping since April 2008 and still loving it :) Stopped smoking April 2008, soooooooo easy :)
#11 (permalink)      8/10/2013 2:24:04 PM US Central   quote/reply + tips
Ganador
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Mine blinks 1 orange light when a battery is at 3.5v and below then blinks 2 lights when it reaches 3.6v. The charger then blinks 3 lights once it hits 4.1v I dont go above 4.18 to preserve the lifespan of the batteries.

So in your case with only 1 light blinking even after reaching 4.1v, im suggesting a request for RMA.