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HelicopterMain Discussion › cold lipo storage
12-09-2016 12:43 PM  11 months agoPost 21
wrongler

rrProfessor

Brewerton, New York

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I am going to leave a bunch of lipos in my shed for the winter and see what happens next spring!

Bill Whittaker

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12-09-2016 01:59 PM  11 months agoPost 22
gwright

rrVeteran

Champaign Il

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For many years i've used a fridge in the garage (not the beer fridge, this is another one next to the beer fridge ). Placed between 3.7 and 3.8 per cell, stored at fridge temp. I haven't checked in a while, but was 38f. Packs that aren't regularly used are placed in there, some for a couple years before I use them again. Out the day before to come up to normal temps (room temp), charge, fly, just fine. I have some strange sizes that were in the fridge since we moved up here in mid 2013, took them out this summer doing some experimenting with different cellcounts and sizes, warmed up, charged, flew just like when they went into cold storage.

Some of my packs, the ones I use the most, are kept in ammo cans in the garage (too lazy to put in fridge for a few days during the week, then out again, repeatedly during flying season). Those have survived 3 winters in the garage in ammo cans, and it can be well below freezing here for lengthy periods . Average temp in january is 16.7f (yes I googled it), with periods that can be much colder, with negatives at times. I have not seen any degradation, and they were obviously below freezing for lengthy periods.

After reading prior posts in this thread, i probably should put everything in the fridge to keep it above freezing during winter, but actual real world results for three winters indicates that it's not needed.
YMMV

Gary Wright

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12-09-2016 04:30 PM  11 months agoPost 23
wrongler

rrProfessor

Brewerton, New York

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^^^^^Read your post and it gave me a better feeling about leaving lipos in the shed. I would rather store them away from the house, Just to be on the safe side.
Thanks for the post,
Bill

Bill Whittaker

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12-09-2016 05:51 PM  11 months agoPost 24
Tyler

rrElite Veteran

Chicagoland area

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I will leave mine outside in a heavy metal file cabinet in chicago winter temps. Rather risk the expense of buy all btand new lipo batteries every season than risk ANOTHER house fire. One fire was enough. Have survived a few winters so far.

Enjoy things that money can buy IF you don't lose the things money can't buy.

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12-14-2016 08:31 PM  11 months agoPost 25
corywrx

rrNovice

Texas

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Geez that's scary.

Can you elaborate on the house fire? Were you charging?

Gaui X3 Stretch - Futaba 10J - Citizen 799

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01-03-2017 06:07 AM  10 months agoPost 26
steve9534

rrKey Veteran

yakima, wa.

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LiPo temps

The information provided clearly shows there was less loss of capacity at 0 degrees C. I've kept my batteries in the freezer for years without problems. I flew yesterday when it was about 20 degrees F and didn't warm up the pack or heli first. That heli probably has 200 flights in Sub-Zero temperatures and no failures. Maybe a little less power but it's hard for an old geezer to tell. The video of the flight is on George Radford's Facebook site if anyone cares. steve

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01-03-2017 03:46 PM  10 months agoPost 27
birdflipper

rrNovice

Northeast United​states

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I left two 2200 3s packs in my garage over the winter , last year and both were fine .
the experience of a few people wont give solid facts that a reputable lipo manufacturer can.
if I was going to store pack out in the shed (for safty sake I assume)I would place a few simple calls and get solid answers you can live with.

as with all batteries and electronics , acclimation is always the smartest way to avoid condensation issues. even taking a transmitter from your nice cold air conditioned house to your vehicle or other way around , warrants proper acclimation time before power up.

R/C is like the mob ..once your in , your NOT gettin out !

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HelicopterMain Discussion › cold lipo storage
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