LiPos are not to be stored at full charge. 

So, if you charge them up with the antcipation of going flying then you can't go for some reason how long can they sit charged before you need to discharge to the storage amount?

As near as I can tell from flying RC planes, leaving your LiPo's all charged up isn't going to kill them off immediately.  It may shorten the life a bit, but if it was an "instant kill" I'd go through batteries a whole lot faster.

My charger is pretty cool, nothing real fancy but it does have a storage setting.  It will charge or discharge batteries to the desired long term storage levels. 

I was just wondering as I have heard when left fully charged for extened times they can "puff" and then that battery is ruined. Or it can shorten the life cycle and the reduce the capacity.

Just currious about it as I dont want to ruin my LiPos.

...but will put thee in storage rather then leaving them slightly low. 

We only need to keep him in storage until after the Nats.

So, are there chargers out there on the market that will allow one to discharge batteries for storage, and, don't cost an arm and a leg??? Brew

Here is one I have and it works fine - Thunder T610. Has a bit of learning curve on setting it up for your particular battery. The price is hard to beat.

http://www.hobbypartz.com/75p-t610-charger.html

I posted a similar question in a thread some time ago because my charger does not have the option to discharge to 3.8v per cell so I was having to discharge to 3.6v (The highest cell voltage on offer) and then re charge to 50% capacity. In the replies it was suggested using an ESC to achieve what I wanted. The CC Phoenix range for example allows you to configure the cut off voltage, so I mounted an old motor with a 5x3 prop and a Phoenix 25 which was not doing anything. I configured the phoenix to cut off at 3.8v per cell and I just connect my packs up to it and leave them running. (Timer set to an hour). It seems to work quite well. Obviously it's using total pack voltage rather than individual cell voltage so I then stick the pack on my LBA10 balancer to finish before finally using one of the battery checkers (Like the EOS century) just to verify the cells are indeed at or very close to the 3.8v. This will probably have people crawling over themselves to tell me it's a bad idea but I'm using packs approaching their 4th season of flying so I must be doing something right.

The only issue is you can't use CL  (Or Helicopter) mode (Or at least not on my old Phoenix) because the Hard Cut Off is ineffective so it simply slows the motor to recover the voltage.

I'm prepared to be shot down in flames for suggesting this but it seems like a cost effective solution to someone with an cheap of older model charger.

TTFN
John.
 

Thanks Dean,
 I would love to take credit for this but it's Dennis Adamisin who pointed me in this direction.  Necessity proved to be the mother of invention I guess but Dennis should take all the credit. If anyone does follow this approach remember that if you have several different cell counts you need to configure the ESC accordingly.

TTFN
John.