Leaving for 3 months, need to discharge Li-pos?

[mjr_larkin]

Hi guys, I got some lipos that are fully charged (small 7.4v 800mah). I am leaving for the summer. Do I need to discharge and then "SORE" charge them for safe keeping or is 3 months fine for leaving them fully charged?

thanks

[WayneBrown]

do a storage charge on them and have at it.

[mjr_larkin]

darn, unfortunately the cell pro 4S doesn't discharge :/ I have to discharge them all with the heli which wouldn't be bad except that the heli is not in flying condition and i'm leaving in the morning :/

[WayneBrown]

then dont sweat it. The worst that can happen is reduced flight time which you would see anyway with use. it should be marginal at best.

[rchelidude]

I've heard you should store them half charged... see --> http://www.rchelisite.com/lipo_battery_charging_and_safety_guide.php

[WillJames]

Just fly them for about 1/3 to 1/2 your normal flight time and put them away.

[WayneBrown]

anyone notice the OP has already started his vacation?
his last post was 5/29.

[ZzEther]

anyone notice the OP has already started his vacation?
his last post was 5/29.

Just in case anyone else reads, here's my one experience with this. I run six Kong Power 3s 2200mah packs on my 450. Last December I drove into the ground with it on my first pack out (mixer arm link popped off.) With the weather here in North Dakota, I ordered parts but didn't put it back together until last month. The pack I flew I got maybe 3 or 4 minutes out of and the other 5 were untouched but fully charged.

I didn't have a charger that would discharge at that time so they sat here, for 6 months. For the last month, I couldn't pick the 1 pack out that sat there for 6 months from the other 5, they all read the same on the charger when I go to put back juice and the worst pack is 0.08 volts out of balance when I'm done flying. These stats rarely even change by a hair.

Maybe good batteries, maybe "storage" means something longer than 6 months. I dunno, but I like my Kong Powers.