Airsoft Canada - View Single Post - Marui discharger destroying my batteries...huh?

coach · November 13th, 2008, 12:21

I have discharged my NiMH 8.4's with my TLP fuzzy logic charger and no issues. The dedicated discharger's shouldn't cause problems but I have no first hand information on them. I could easily speculate but I won't.

Silverthorn - it's possible that some of your batteries are or were at the end of their life.

"You can buy chargers that will fully discharge batteries before it starts charging them. Or you can connect something to the battery to discharge it. I wouldn't recommend simply shorting it. The best way to do this would be to use a small light bulb or a coil or something that will serve as a load to discharge the battery without creating a dead short, else you run a moderate risk of causing a problem with the battery, the least of which might be current leakage, or possibly causing the battery to explode."

"NiMH batteries don't suffer from the 'memory' effect that NiCd batteries are prone to. You don't need to discharge NiMH batteries for them to be at their best, and in fact fully discharging them may damage the cells. If the cells aren't holding equal charge, then maybe your battery is reaching the end of its life. If you are getting a decent run time when fully charged, then they are probably fine. Ignore trying to discharge them, as you won't gain anything by doing this.

Something you could try is to put your battery into the freezer overnight, then remove it and let it come back to room temperature. This 'trick' can apparently help to break up any crystals that form in each cell and so help to revitalise poor performing cells. Let us know if this works, as I've never tried it myself.

"

Reference: http://www.techspot.com/vb/all/windo...ry-safely.html

The freezer trick does work. I don't know how often this is successful but I do have a friend that used this method and successfully got his iBook battery up and running again.

November 13th, 2008, 12:21	#6
coach aka coachster Trader rating Join Date: Mar 2008 Location: T dot	I have discharged my NiMH 8.4's with my TLP fuzzy logic charger and no issues. The dedicated discharger's shouldn't cause problems but I have no first hand information on them. I could easily speculate but I won't. Silverthorn - it's possible that some of your batteries are or were at the end of their life. "You can buy chargers that will fully discharge batteries before it starts charging them. Or you can connect something to the battery to discharge it. I wouldn't recommend simply shorting it. The best way to do this would be to use a small light bulb or a coil or something that will serve as a load to discharge the battery without creating a dead short, else you run a moderate risk of causing a problem with the battery, the least of which might be current leakage, or possibly causing the battery to explode." "NiMH batteries don't suffer from the 'memory' effect that NiCd batteries are prone to. You don't need to discharge NiMH batteries for them to be at their best, and in fact fully discharging them may damage the cells. If the cells aren't holding equal charge, then maybe your battery is reaching the end of its life. If you are getting a decent run time when fully charged, then they are probably fine. Ignore trying to discharge them, as you won't gain anything by doing this. Something you could try is to put your battery into the freezer overnight, then remove it and let it come back to room temperature. This 'trick' can apparently help to break up any crystals that form in each cell and so help to revitalise poor performing cells. Let us know if this works, as I've never tried it myself. " Reference: http://www.techspot.com/vb/all/windo...ry-safely.html The freezer trick does work. I don't know how often this is successful but I do have a friend that used this method and successfully got his iBook battery up and running again. Last edited by coach; November 13th, 2008 at 12:24..