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View Full Version : Battery Gurgling? Good or Bad?


Emby25
10-10-2008, 01:00 PM
Sorry if this question has been answered several times. Anyways, I just put one of my batteries on to charge, and was in the room when it made a gurgling noise. It sounded like somebody's stomach when you are really hungry. At first I thought nothing of it. Then, once it was done charging, I took it off of the smart charger and it did it again. My question is is the noise a sign of something bad happening inside of it that I should be aware of? I would also like to know if it will still be safe to use in my gun? In case this is needed to answer my question it is an 8.4v 1800 MaH large type battery pack in case someone would need to know that to answer my question.
Thanks,
Matt

DkHelmet
10-10-2008, 02:39 PM
Holy hell on the font and color. Ouch.

Gurgling batteries is probably not a good sign. Larger lead-acid batteries like boat or car batteries bubble and gurgle when charged, but NiCad and NIMH really shouldn't. Read:

http://en.wikipedia.org/wiki/Nickel_metal_hydride_battery#Safety
http://www.repairfaq.org/ELE/F_NiCd_Battery.html#NICDBATTERY_008

Any gasses produced during the charge shouldn't escape or make noise. I've never heard of such a thing and my Google-fu doesn't show up anything. I think you might have overcharged it, possibly heavily, for it to start making silly noises at you. Double and triple check charge amperage and time. If it's too hot to handle then it's a definite giveaway it's overcharged.

Otherwise... dunno. I wouldn't trust it to be charged without supervision, so don't put it on a fast charge and leave the house for a burger. If it gets really hot while charging or doesn't hold any charge at all, then discard and pick up a new one from a solid name brand manufacturer like Sanyo.

bubbalouie1994
10-10-2008, 02:40 PM
My eyes hurt.

Rjaniz
10-10-2008, 03:46 PM
Font changed.

Emby25
10-10-2008, 04:12 PM
Holy hell on the font and color. Ouch.

Gurgling batteries is probably not a good sign. Larger lead-acid batteries like boat or car batteries bubble and gurgle when charged, but NiCad and NIMH really shouldn't. Read:

http://en.wikipedia.org/wiki/Nickel_metal_hydride_battery#Safety
http://www.repairfaq.org/ELE/F_NiCd_Battery.html#NICDBATTERY_008

Any gasses produced during the charge shouldn't escape or make noise. I've never heard of such a thing and my Google-fu doesn't show up anything. I think you might have overcharged it, possibly heavily, for it to start making silly noises at you. Double and triple check charge amperage and time. If it's too hot to handle then it's a definite giveaway it's overcharged.

Otherwise... dunno. I wouldn't trust it to be charged without supervision, so don't put it on a fast charge and leave the house for a burger. If it gets really hot while charging or doesn't hold any charge at all, then discard and pick up a new one from a solid name brand manufacturer like Sanyo.

Thanks for replying. Sorry about the font. (Wanted to try something different.) Anywhoo, the thing is I am using a smart charger. When it was doing it it was 1/2 to 3/4 of the way done charging. When I took it off it was not that warm at all. It was also doing it when I took it off of the smart charger to. Except it was more of a ticking sound once it was off of the charger.