IMR batteries hotter

[Big Hitter]

Anyone else notice that AW IMR batteries come off the charger hotter than non high drain ??

Is this normal ??

 

[speedemon]

I have not noticed that with my imr 18650's.

 

[rtfm]

My AW IMR 14500 come off cold, no heat at all.
Have you measured the voltage to see if they are overcharging?

 

[Big Hitter]

My AW IMR 14500 come off cold, no heat at all.
Have you measured the voltage to see if they are overcharging?

Yep, 4.17 .... the same as my black AWs stop at.
I'm using the Pila IBC.

I wouldn't say they are hot, just warmer than the black ones .... noticeably.
Only if you get them when they first get done though. If they sit for 10 min with the green light they cool off.

Not worried, just thought it was odd.

 

[unsure]

Mine seem normal too.

 

[TennDave]

Mine are a bit warm too...but I haven't worried about it. Don't have the Phila...my charger is an Ultrafire WF-139

 

[Mudflap]

Pila charger, AW IMR 18650's. A tad warm coming off the charger if I catch them right when the LED turns green, but nothing close to hot.

 

[miriaminspringtown]

One of the three AW IMR 18650's came off the Pila charger warm. These were barnd new bateries.

 

[pianoguy]

I just took one of my 14500's off the charger, and it was slightly warm.

 

[Rhapsodies Fire]

mine haven't been warm at all.

 

[Chelseafn]

I get the same thing. Warm to the touch if I pull the batt out when the green light goes on. I also have a Pila charger.

 

[Emris]

I have had that happen to me several times. I wouldnt worry about it much.

 

[silentt]

How do you see the charge of your batteries? I have a multimeter already, just need to know what setting to put it on and make sure where the connectors go.

 

[Mudflap]

How do you see the charge of your batteries? I have a multimeter already, just need to know what setting to put it on and make sure where the connectors go.

See if your meter has selections for "Bat" or "Battery." If so, there should be settings for 1.5V and 9V. Use 9V. Touch the black lead to the negative pole of your battery while touching the red lead to positive pole of your battery. The display will be the voltage held by that battery at that time.

 

[silentt]

that is what i have (- the temp), i don't see any 1.5v or 9v. i don't know if i can use this.

 

[mlinky]

Put the dial on 20 v touch the black tip to the flat end of your batt, and the red tip to the button.

 

[silentt]

thanks, the battery i'm using now is 3.8 and the battery i charged last night is around 4.2

for aw imr 14500 is that average?

 

[Mudflap]

thanks, the battery i'm using now is 3.8 and the battery i charged last night is around 4.2

for aw imr 14500 is that average?

Yep. I'd say so.

 

[silentt]

Cool thanks for all the help. Is it bad to use a battery until it doesn't fire? Will the multimeter show 0 for that battery?

 

[Mudflap]

Cool thanks for all the help. Is it bad to use a battery until it doesn't fire? Will the multimeter show 0 for that battery?

Here's the exact charge rates and % of how long they last =
4.2V – 100%
4.1V – 87%
4.0V – 75%
3.9V – 55%
3.8V – 30%
3.5V – 0%

I believe I've read that it's not good to heavily drain these batteries before recharging. I swap my batteries when I notice performance dropping off and they usually meter 3.7V to 3.9V at those times.