Go Back   RCCrawler Forums > RCCrawler General Tech > Electronics
Loading

Notices

Thread: Restoring old battery packs

Reply
 
LinkBack Thread Tools Display Modes
Old 02-14-2012, 07:21 AM   #1
Quarry Creeper
 
Join Date: Jan 2004
Location: Long Island
Posts: 248
Default Restoring old battery packs

My packs have been sitting for so long, many of them won't take a charge. Even my beautiful Ballistic 3000 matched packs won't take more than a 5% charge. I've tried everything short of voodoo.

Things I have tried:
-Low .1amp charge/discharge cycles
-5amp burst charges
-Freezing them
-Hooking them to a 8v 300 mah D/C converter overnight

The NiCads seem to come back better than the NiHMs which, from what I have read, is standard.

Anyone have any tricks I haven't tried?
zBigBadWolf is offline   Reply With Quote
Sponsored Links
Old 02-14-2012, 10:55 AM   #2
RCC Addict
 
Join Date: Dec 2011
Location: Raleign
Posts: 1,439
Default Re: Restoring old battery packs

I had some old NiMH packs that I had to hook up to an old school trickle charger I had and let them trickle over night. I think I had some 2000mah packs and the charger was 50ma so that's technically about 40 hours for a full charge. You'll want to trickle them for a while and then drain them fully and do it again. I'd try a slightly lower charge rate than the 300ma you already did.

This only works for NiCD and NiMH, never do that with LiPO!!
ik632 is offline   Reply With Quote
Old 02-14-2012, 11:50 AM   #3
Quarry Creeper
 
Join Date: Nov 2007
Location: NH
Posts: 427
Default Re: Restoring old battery packs

I've played around with old batteries in the past (I'm a broke mofo and a cheapskate) and I'll be honest with you. Don't waste your time with them, if they aren't charging good from the get-go then they probably will dump shortly after to get ready to use them. Battery pack prices are really stpid low, spend a few bucks and get your self some new packs.
allgm1 is offline   Reply With Quote
Old 02-14-2012, 09:42 PM   #4
Quarry Creeper
 
Join Date: Jan 2004
Location: Long Island
Posts: 248
Default Re: Restoring old battery packs

I've had 2 chargers going for the last week trying to work some life into these. I've probably spent more in electricity than the cost of buying new packs.

I found a 100mah adapter and have one battery on it for the night. If it doesn't work, guess I'll pry open my wallet.
zBigBadWolf is offline   Reply With Quote
Old 02-15-2012, 01:49 AM   #5
Rock Crawler
 
Join Date: Mar 2010
Location: Happy Top
Posts: 777
Default Re: Restoring old battery packs

I shot my last bad pack with a 357 that worked good after I got some new ones. (Side note 3s will stop a 38 )
obebaldone1 is offline   Reply With Quote
Reply



Restoring old battery packs - Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery Packs Bow3022 Electronics 6 12-24-2008 02:45 AM
Battery packs? Muddyjeep Electronics 19 04-15-2008 07:17 AM
battery packs Beenerman General Crawlers 21 08-28-2005 09:48 PM
Battery Packs PastryLikeDood Electronics 6 04-06-2005 05:12 PM
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 09:56 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com