# Battery Charging Noise **URL:** \ **Category:** Proton Packs\ **Created:** [February 12, 2017, 12:34am UTC](https://forum.gbfans.com/t/battery-charging-noise/23892 "2017-02-12T00:34:22Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![below\_radar\_00](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/b/c5a1d2/32.png) [@below\_radar\_00](https://forum.gbfans.com/u/below_radar_00)\ **Post date:** [February 12, 2017, 12:34am UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/1 "2017-02-12T00:34:22Z")
I purchased a pack back in 2013 and believe it or not the battery has lasted up until a few months ago. Granted I don’t wear it out and I just turn it on for a few mins here and there when friends want to see what it does. So I’m charging the battery for the very first time tonight. When I plug the charger in and flip the battery power on there’s a strange noise that seems to get louder and louder. I always unplug the charger after a few seconds since I don’t know if that noise will be followed by a big bang or what. Haha. The battery is a 12V 9000mah Li-Ion, the blue brick kind. Is the sound normal more or less or is it time to replace the battery since it’s several years old. I think the pack was build years before I purchased it so the battery could be 5-7 years old at this point and hasn’t been charged since 2013. ---
**Author:** ![below\_radar\_00](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/b/c5a1d2/32.png) [@below\_radar\_00](https://forum.gbfans.com/u/below_radar_00)\ **Post date:** [February 12, 2017, 12:42am UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/2 "2017-02-12T00:42:03Z")
I’m also wondering if the battery is supposed to bulge like it does. I probably should have paid closer attention before I plugged in the charger a few times. One side seems relatively flat while the other bulges a good bit. ![image](https://discdn.gbfans.com/original/3X/d/3/d34910400f804999ed030ce05632edd0675c5998.jpeg) ![image](https://discdn.gbfans.com/original/3X/0/5/05731c6fba0f9b853d79879157b73d204c4fa9da.jpeg) ---
**Author:** ![grogking](https://forum.gbfans.com/user_avatar/forum.gbfans.com/grogking/32/4048_2.png) [@grogking](https://forum.gbfans.com/u/grogking)\ **Post date:** [February 12, 2017, 2:53am UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/3 "2017-02-12T02:53:17Z")
That bulge definitely means its done. Replace ASAP. ---
**Author:** ![WindDrake](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/w/f05b48/32.png) [@WindDrake](https://forum.gbfans.com/u/WindDrake)\ **Post date:** [February 12, 2017, 3:50am UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/4 "2017-02-12T03:50:22Z")
Bulging LiPoly pack means the cells are gassing. Get that thing out of there ASAP. ---
**Author:** ![below\_radar\_00](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/b/c5a1d2/32.png) [@below\_radar\_00](https://forum.gbfans.com/u/below_radar_00)\ **Post date:** [February 12, 2017, 3:40pm UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/5 "2017-02-12T15:40:25Z")
Thanks guys. The more you know… I’m going to try and carefully get it off the pack today. I’m not sure how the previous owner affixed it to the [motherboard](https://www.gbfans.com/wiki/equipment/proton-pack/motherboard) but I’m assuming it’s just Velcro’d on there. I don’t want to make things worse by puncturing it as I’m trying to remove it. Where’s the best place to get a replacement these days? Any better options than a Li-Ion that will plug in without me having to mod anything? ---
**Author:** ![grogking](https://forum.gbfans.com/user_avatar/forum.gbfans.com/grogking/32/4048_2.png) [@grogking](https://forum.gbfans.com/u/grogking)\ **Post date:** [February 12, 2017, 9:58pm UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/6 "2017-02-12T21:58:47Z")
Google 12V 9800 mAh and you should have several options to buy. I have seen them in the $30 range. ---
**Author:** ![below\_radar\_00](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/b/c5a1d2/32.png) [@below\_radar\_00](https://forum.gbfans.com/u/below_radar_00)\ **Post date:** [February 13, 2017, 3:25pm UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/7 "2017-02-13T15:25:00Z")
Thanks! Got the old battery off and dropped her off at a battery recycling place. And the new battery is on the way. ---
**Author:** ![cpu64](https://forum.gbfans.com/user_avatar/forum.gbfans.com/cpu64/32/104792_2.png) [@cpu64](https://forum.gbfans.com/u/cpu64)\ **Post date:** [February 15, 2017, 6:08am UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/8 "2017-02-15T06:08:49Z")
Good! That was about to become your pack’s self destruct mechanism 😃 ---
**Author:** ![below\_radar\_00](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/b/c5a1d2/32.png) [@below\_radar\_00](https://forum.gbfans.com/u/below_radar_00)\ **Post date:** [February 15, 2017, 2:43pm UTC](https://forum.gbfans.com/t/battery-charging-noise/23892/9 "2017-02-15T14:43:27Z")
> [@CPU64](#): > > Good! That was about to become your pack’s self destruct mechanism 😃 Maybe I should have saved that old battery in case I want to build an RGB accurate pack complete with self destruct feature. Oh well. Haha!