E-FLite Lipo Pack

[mad-heli]

Here is a question for you lipo pro's....

I have 3 stock bladecp pro lipo packs.

They are always balanced charged. 2 packs out of 3, the capacity per cell is about 4.19v per cell after charging. These 2 packs last about 7+ minutes on a blade cp pro that has all seperates with a dd tail and a brushless main. Now for the 3rd pack, the cells charge to 4.15v per cell and only last less than 5 minutes. Is this pack that is charging to a max of 4.15v toast and is it still save to use it? This pack is not puffed and is warm to the touch after using it like the other 2.

[Trooper Sam]

I don't think there's a safety issue, but when you fly your packs, do you fly them until you notice the power drop in the heli?

If so, you're waiting too long, and might be over-discharging your packs. That'll most certainly shorten their lives.

[mad-heli]

No I don't wait until power drops.

[Trooper Sam]

Okay, probably just a bad pack. Not horridly bad, but not where it should be.

[mad-heli]

Ok, thanks