My NiMh packs haven't been touched in 3 years...
#1
My NiMh packs haven't been touched in 3 years...
I'm not a newbie, but this is SUCH a newbie question...
I recently came out of retirement from R/C and all I had left from before is three Integy 4200 NiMH packs. These things haven't been touched in 3 years. I have a charger on the way and I'll find out soon enough, but what are the chances that these things aren't junk, and that I can at least use them as practice packs?
Dave
I recently came out of retirement from R/C and all I had left from before is three Integy 4200 NiMH packs. These things haven't been touched in 3 years. I have a charger on the way and I'll find out soon enough, but what are the chances that these things aren't junk, and that I can at least use them as practice packs?
Dave
#2
chances are there junk but give em a go. cycle them alot or dead short those bad boy and see how they are.
#3
Cycle them, a lot. If you have a discharger that gives individual cell numbers you can take the cells that survived and make a decent pack. Hardcase lipo's can be had for $20 a piece so those nimh's might not be worth fooling with.
#4
Tech Adept
I just got back into it and had a 10 year old Trinity 2000 that I cycled a couple of times and it works great (for being a 2000). Drop to 5.4V and recharge at 1/2C a couple of times and I bet you'll be fine.
Good luck and welcome back. Say goodbye to all your spare time and money
Good luck and welcome back. Say goodbye to all your spare time and money
#6
Tech Lord
iTrader: (21)
These guys have some advice for reviving old packs - see the paragraph "If your pack has been stored for a long time" a little more than 1/2 way down
http://camlight.com/techinfo/techtips.html
Good luck
http://camlight.com/techinfo/techtips.html
Good luck
#8
Tech Master
iTrader: (6)
!!!
When you cycle your packs for the 1st few times, charge them only at the listing on the batt x the # of cells. ( 3300 6 cell- .33 x 6= 1.98 or amps) In your case, .42 x 6 = 2.52 amps. no more than 3 amps. If you try to charge them like you did 3 years ago they will be dead and may go up. If you heard poping take the pack off the charger asap.
When you cycle your packs for the 1st few times, charge them only at the listing on the batt x the # of cells. ( 3300 6 cell- .33 x 6= 1.98 or amps) In your case, .42 x 6 = 2.52 amps. no more than 3 amps. If you try to charge them like you did 3 years ago they will be dead and may go up. If you heard poping take the pack off the charger asap.