Orion lipo battery 90c 5500 saddle pack bulge

[childerbeast]

Hi some advice please got a saddle pack Orion 5500 90c lipo 7.4 only had it 6 months I've noticed that one of the packs has a bulge in it and case is coming away, the other one is fine, I don't race electric that much and I have only charged this battery no more than 10 times on an Orion lipo balanced charger,
I used it about 4 times in June or July then stored it until I used it again in oct and nov, I have an old lrp saddle pack soft case lipo battery 3 years old still going strong. Is there any warranty on battery's? Or anything I've done wrong?

[mark christopher]

what state did you store it in?

[childerbeast]

Always leave them fully charged

[mark christopher]

That could well be your problem, just about all manufactures recommend you put them in a storage charge, most good chargers do this, there is a recommended voltage. But it escapes me at the moment.
The newer higher capacity cells do seem more sensitive

[Col]

Originally Posted by mark christopher

The newer higher capacity cells do seem more sensitive

IB4200's anyone?

[CrashBangWallop]

Originally Posted by Col

IB4200's anyone?

Bang on ! Latest tech always seems a bit fragile to begin with.
I can remember when some guys were popping a cell a race when 5 cell racing was in.

[Rich D]

Originally Posted by mark christopher

That could well be your problem, just about all manufactures recommend you put them in a storage charge, most good chargers do this, there is a recommended voltage. But it escapes me at the moment.
The newer higher capacity cells do seem more sensitive

My Hyperion charges to 7.8v in store mode if I recall correctly. Not heard of anyone else having trouble with the Orions so you've been unlucky there.
I guess there's always going to be the odd failure whatever the make and model.

I remember my gold 20c trakpowers were the least reliable lipos I have owned to date but at the time they were new technology.

I have read that temperature increase when the cells are stored fully charged can do permanent damage.

[Rich D]

From Hyperion...

"Storage - Lipo should never be stored fully charged, or with less than 50% of capacity remaining. We strongly recommend Hyperion EOS chargers, as they have automatic STORE functions to insure that the packs are in the range of about 60%~70% capacity (3.78V~3.92V resting voltage per cell). After returning home for the day, simply use STORE MODE to achieve this automatically. Batteries are best stored in a cool, dry environment (2~20 °C or 37~68 °F)."

[Timee80]

Originally Posted by mark christopher

That could well be your problem, just about all manufactures recommend you put them in a storage charge, most good chargers do this, there is a recommended voltage. But it escapes me at the moment.
The newer higher capacity cells do seem more sensitive

+1 totally agree with Mark. And it is much more important with the newer high discharge lipos. the less powerful lipos seem to be fine when stored at full voltage though.