2S TURNIGY (HOBBYCITY) BATTERY PROBS
01-10-2010, 11:29 PM
#18
If you are not comfortable with the possibilities then its a butt kicking and you should dispose of it. If you dont mind a little flair in your life then you may be able to bring it back. But be sure to take all the precautions you can to avoid a hazardous situation if something should go wrong.
If you set your charger to Nimh mode and charge the pack until it gets to about 3V per cell then stop immediately and switch back to lipo mode it usually will pick up from there and keep going. You must keep a close eye on the pack because Nimh mode could overcharge the pack if left too long, and you do not want that. Keep the pack in something flameproof for at least the first few cycles if not whenever its not in the car. Lots of people have lipos they run everyday they have used this method on and no problems, but problems could happen anytime a pack has been drained too low or overcharged.
If you set your charger to Nimh mode and charge the pack until it gets to about 3V per cell then stop immediately and switch back to lipo mode it usually will pick up from there and keep going. You must keep a close eye on the pack because Nimh mode could overcharge the pack if left too long, and you do not want that. Keep the pack in something flameproof for at least the first few cycles if not whenever its not in the car. Lots of people have lipos they run everyday they have used this method on and no problems, but problems could happen anytime a pack has been drained too low or overcharged.
01-11-2010, 07:23 AM
#19
If you are not comfortable with the possibilities then its a butt kicking and you should dispose of it. If you dont mind a little flair in your life then you may be able to bring it back. But be sure to take all the precautions you can to avoid a hazardous situation if something should go wrong.
If you set your charger to Nimh mode and charge the pack until it gets to about 3V per cell then stop immediately and switch back to lipo mode it usually will pick up from there and keep going. You must keep a close eye on the pack because Nimh mode could overcharge the pack if left too long, and you do not want that. Keep the pack in something flameproof for at least the first few cycles if not whenever its not in the car. Lots of people have lipos they run everyday they have used this method on and no problems, but problems could happen anytime a pack has been drained too low or overcharged.
If you set your charger to Nimh mode and charge the pack until it gets to about 3V per cell then stop immediately and switch back to lipo mode it usually will pick up from there and keep going. You must keep a close eye on the pack because Nimh mode could overcharge the pack if left too long, and you do not want that. Keep the pack in something flameproof for at least the first few cycles if not whenever its not in the car. Lots of people have lipos they run everyday they have used this method on and no problems, but problems could happen anytime a pack has been drained too low or overcharged.
01-11-2010, 08:32 AM
#20
Your charger does that (won't charge lipo if voltage is below ~3v/cell) as a safety matter. Lipos are a lot more robust today than a few yrs ago and older lipos were usually damaged when the voltage fell below this safety threshold.
Charging one of those old lipos could result in a fire or a lipo meltdown. As long as there is no visible swelling (damage) with a recent lipo, overdischarge can be 'remedied" as you just did.
I saved a brand new lipo I received with a cell at 0.28v just like you did and its been fine. Def should not be routine though.
Charging one of those old lipos could result in a fire or a lipo meltdown. As long as there is no visible swelling (damage) with a recent lipo, overdischarge can be 'remedied" as you just did.
I saved a brand new lipo I received with a cell at 0.28v just like you did and its been fine. Def should not be routine though.
01-11-2010, 08:55 AM
#21
LMK how yours turn out.
01-14-2010, 06:26 PM
#27
What charger are you using? I thought both the ones Duster and I linked to would simply stop charging a full cell and continue on any others until charged. I had some cheap packs doing the same thing on a regular balance charger, but the individual cell charger brought them in balance after a overnight session.
01-15-2010, 05:02 AM
#28
^^^
I am using this...
http://www.hobbycity.com/hobbycity/s...110/240v_Input
2nd cell is not getting above 3.8v.
I am using this...
http://www.hobbycity.com/hobbycity/s...110/240v_Input
2nd cell is not getting above 3.8v.
01-15-2010, 06:59 AM
#29
These are inexpensive chargers and the voltage accuracy isn't going to be perfect. My Hexatronik charger charged the 2 good cells to 4.2+v also, (by dvm), IIRC one was like 4.26 and the other was less than that, but still over 4.2v.
These 'cell' type chargers aren't going to save a cell thats truly damaged, just cells that are and have been out of balance long enough that they don't easily come back into balance.
These 'cell' type chargers aren't going to save a cell thats truly damaged, just cells that are and have been out of balance long enough that they don't easily come back into balance.
01-22-2010, 06:15 PM
#30
hextronik work on 6s?
hey guys just had i quick question i understand that the hextronik charger for HK is for 2s to 4s but is there any way it would work on a unbalanced 5s or 6s??? i dont have the problem and am not even into lipos yet but im trying to do all my homework because i plan to get into lipos and want to be prepaired for the worst..and i plan on using 5s and 6s so thats why i ask..thanks!?