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e-Electric Batteries & Chargers > Storing Thunder Power Batteries
 
 
Hivoltage
Senior Heliman
Location: Newark, Ohio

What is the proper way to store my 3s and 4S4P batteries for the long dreaded winter?????? Charged...discharged???? Thanks

I Dont Have No Stink'in Signature
10-18-2003 Over year old.
 
 
Jason Merkle
Senior Heliman
Location: Champaign, IL

Leave anywhere from 20% to 100% in the packs for long term storage. With a full charge, even 6 months from now youll still have 90% juice in em when youre ready to fly again!

Jason
10-19-2003 Over year old.
 
 
Vinnie
Senior Heliman
Location: Miami Beach, Florida

Longer

Lithium Polymer batteries self-discharge at less than 3% per year.

This means a 4s4p stick charged fully to 8000mAh will still have 7760mAh remaining after a year on the shelf.

Do keep them at room temperature or below, though, and out of direct sunlight.
10-19-2003 Over year old.
 
 
Hivoltage
Senior Heliman
Location: Newark, Ohio

Thanks

Thanks guys. I had once heard that they should be stored with half of a charge in them. Maybe that is not necessary.!!!!

I Dont Have No Stink'in Signature
10-20-2003 Over year old.
 
 
Vinnie
Senior Heliman
Location: Miami Beach, Florida

Well

I'm not a battery expert, but if you are considering storing them for any significant length of time, it would seem that a full charge is best (I'm referring only to Lithium Polymer batteries here).

The problem with storing them at lower charge levels, is that if they are left on the shelf long enough, they will self-discharge to below the voltage level required to maintain the cell integrity.

From the feedback I have received regarding these packs, a set of batteries that has fallen below the minimum voltage level might work a few times after being charged, but you run a greatly increased chance of explosion followed by fire.
10-27-2003 Over year old.
 
 
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e-Electric Batteries & Chargers > Storing Thunder Power Batteries
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