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rcnorth · 06-23-2014, 11:58 AM

So I had a bad crash today & looks like i punctured a cell in my 6s 5000 battery

It's still 85% charged, so what should I do? Use my PL6 to discharge outside then put in salt water?

Gregor99 · 06-23-2014, 12:19 PM

http://www.tjinguytech.com/charging-.../lipo-disposal

Slyster · 06-23-2014, 01:16 PM

I always drive a screwdriver into them (its fun) and when all the action is over just put in the trash.

RedOctobyr · 06-23-2014, 06:29 PM

If that's the only damaged cell, got any use for a 5S 5000?

Lower-HS flying on a single-pack heli, etc? You can open the pack and remove just the damaged cell.

If the whole thing is destined for the trash, you should be able to use your PL6. Don't connect the balance lead, select NiMH or NiCd mode, and tell the charger to discharge to 0V, or as close as it will let you.

The energy stored in LiPos drops off really fast when they go below 3V/cell. So I wouldn't worry about it too much if you can't get the whole pack all the way down to 0V. Getting all 6 cells even to 6V total would likely mean the cells are pretty much fully-discharged.

rcnorth · 06-24-2014, 02:35 AM

Thanks guy's, I cut the connector off & put it in a bucket of salt water,...

at least I got a years use out of it, but I'm sure it had at least another year or 2. Crashing a big heli isn't very fun!

Gregor99 · 06-24-2014, 12:31 PM

http://www.rcgroups.com/forums/showthread.php?t=1565117

Salt water doesn't work reliably and may leave some cells charged with no easy way to discharge them.

rcnorth · 06-25-2014, 12:08 AM

ya I took it out today & put a screw driver in it.......

it's done now

desertstalker · 07-10-2014, 12:00 AM

Hooking up a small lightbulb (or several in series if needed) and leaving until completely flat also work.

It is much less spectacular, but probably safer (do it outside just to be sure).

Gregor99 · 07-10-2014, 11:12 AM

Quote:

Originally Posted by desertstalker

Hooking up a small lightbulb (or several in series if needed) and leaving until completely flat also work.

It is much less spectacular, but probably safer (do it outside just to be sure).

That's exactly how I do it. I have two bulbs that can be configured in series for up to 6s or parallel for up to 3s.

06-23-2014, 11:58 AM	#1 (permalink)
rcnorth Registered Users Join Date: Jan 2013	disposing of my lipo So I had a bad crash today & looks like i punctured a cell in my 6s 5000 battery It's still 85% charged, so what should I do? Use my PL6 to discharge outside then put in salt water? Attached Thumbnails __________________ Chase 360, Protos380x3, Goblin500, Raptor E700 x2 JETI DS-16, SKOOKUM & YGE

06-23-2014, 12:19 PM	#2 (permalink)
Gregor99 Registered Users My HF Map location Join Date: Oct 2007	http://www.tjinguytech.com/charging-.../lipo-disposal __________________ Revolectrix Ambassador - Charger Specialist Revolectrix.com 10% discount for Batteries GCAM16

06-23-2014, 01:16 PM	#3 (permalink)
Slyster Registered Users My HF Map location Join Date: May 2008	I always drive a screwdriver into them (its fun) and when all the action is over just put in the trash. __________________ "It's not just a hobby... it's a lifestyle" - Pete ϟ MINNESOTA! Goblin 500 + 700 / SK540 / Jives / DX8 / Quantum / RJX servos / 306b / Deep cycles

06-23-2014, 06:29 PM	#4 (permalink)
RedOctobyr Registered Users My HF Map location Join Date: Jan 2011	If that's the only damaged cell, got any use for a 5S 5000? Lower-HS flying on a single-pack heli, etc? You can open the pack and remove just the damaged cell. If the whole thing is destined for the trash, you should be able to use your PL6. Don't connect the balance lead, select NiMH or NiCd mode, and tell the charger to discharge to 0V, or as close as it will let you. The energy stored in LiPos drops off really fast when they go below 3V/cell. So I wouldn't worry about it too much if you can't get the whole pack all the way down to 0V. Getting all 6 cells even to 6V total would likely mean the cells are pretty much fully-discharged. __________________ Gaui X5, iKon, Edge 100, CC BEC Pro. Tarot 450 Pro FBL, Mini VBar, Ice Lite 50. BL mCP X, Nano QX, FrSky Taranis, iCharger 308Duo.

06-24-2014, 02:35 AM	#5 (permalink)
rcnorth Registered Users Thread Starter Join Date: Jan 2013	Thanks guy's, I cut the connector off & put it in a bucket of salt water,... at least I got a years use out of it, but I'm sure it had at least another year or 2. Crashing a big heli isn't very fun! __________________ Chase 360, Protos380x3, Goblin500, Raptor E700 x2 JETI DS-16, SKOOKUM & YGE

06-24-2014, 12:31 PM	#6 (permalink)
Gregor99 Registered Users My HF Map location Join Date: Oct 2007	http://www.rcgroups.com/forums/showthread.php?t=1565117 Salt water doesn't work reliably and may leave some cells charged with no easy way to discharge them. __________________ Revolectrix Ambassador - Charger Specialist Revolectrix.com 10% discount for Batteries GCAM16

06-25-2014, 12:08 AM	#7 (permalink)
rcnorth Registered Users Thread Starter Join Date: Jan 2013	ya I took it out today & put a screw driver in it....... it's done now __________________ Chase 360, Protos380x3, Goblin500, Raptor E700 x2 JETI DS-16, SKOOKUM & YGE

07-10-2014, 12:00 AM	#8 (permalink)
desertstalker Registered Users Join Date: Apr 2011	Hooking up a small lightbulb (or several in series if needed) and leaving until completely flat also work. It is much less spectacular, but probably safer (do it outside just to be sure). __________________ -DX8 -MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh -MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh -Goblin 500, HC3SX, Hyp DH16/MKS980BL, Scorp 4015-1100

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