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› Correct way to Store Lipos
03-09-2010 12:27 AM  8 years agoPost 1
Paradiddle

rrApprentice

Raleigh ,North Carolina

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Im curious on how others are storing their lipos when not in use.
I have mine sitting on a table , is this wise or not.

http://www.rchelisite.com/lipo_batt...afety_guide.php

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03-10-2010 01:58 AM  8 years agoPost 2
Ravenhyper50

rrKey Veteran

Canada's Capital

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I discharge all my lipos I don't use over the winter months.

I take down all my lipos to 3.8v per cell, and stick them in the deep freezer. When It comes time to use them for next season, I let the lipos come to room temperature over night, then charge them up.

I have been doing this since 2006 with great results. The lipos come out performing the same 4 months later, as they were the day they went into the freezer.

Lipos degrade chemically from the day they are manufactured, and freezing slows the degrading down.
Temperature is what degrades lipo batteries over its life cycle.

Keep them cool as much as you can , and you will have longer lasting lipo power packs.

Cheers,
Raven

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03-12-2010 08:44 PM  8 years agoPost 3
Paradiddle

rrApprentice

Raleigh ,North Carolina

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Thanks Raven great thread.

Glad to see someone now's how too handle lipos.

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03-13-2010 03:48 AM  8 years agoPost 4
G Steyn

rrApprentice

Heidelberg, Transvaal, Suid Afrika

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I've been wondering about li-pos in the freezer for the past two months,
Interesting......

Concentrate on your weaknesses and your strengths will reward you!

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03-22-2010 11:55 PM  8 years agoPost 5
saitoflyer

rrVeteran

L.A. CA

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on the how to's its specifically says not to freeze them dont they?

is that a new heli? Oh no honey, its the same one w/different stickers.....

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03-23-2010 12:56 AM  8 years agoPost 6
Ravenhyper50

rrKey Veteran

Canada's Capital

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The only reason it might say that some where, is to protect the companies from stupid. If you attempt to charge a frozen lipo, it will take in way more than it can handle and cause a failure, puff, then fire! Even if you have a smart charger DO NOT ATTEMPT TO CHARGE FROZEN LIPOS.

Another way to look at it, lots of people fly in the winter especially around here, and leaving them out side in the -C for long hours or in the frozen cold garage for days, their would be lots of pissed off reports of lipos gone bad because they froze. Its for Safety that's all.

Its not necessary, its just what I do. My deep freeze also is protection for my house in case of a lipo failure while in storage.(from storing crashed packs that are in good shape)
Prolongs & Protects Those are the main reasons I do it this way.

Cheers,
Raven

TIPS: Try not to buy any lipos that have been sitting at your local hobby shop for more than 6 months. Make a personal order for fresher packs. Especially if you find it hot inside when you walk in.
Bring a IR meter if you have one, and test the packs before you buy.
Most newer chargers on the market have this feature.

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03-23-2010 03:35 AM  8 years agoPost 7
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I store mine in an Ammo Can just in case.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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04-05-2010 10:06 PM  8 years agoPost 8
tacoturbo

rrApprentice

Kauai, Hawaii

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This might be an ignorant question but, what about the moisture or sweating when the lipos are defrosted? In my experience when thawing anything out it will sweat quite a bit. Isn't that detrimental to the packs themselves? Just curious.

TT

I don't do 3D....no wait. Oh thats right, I can't do 3D!

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04-06-2010 06:29 AM  8 years agoPost 9
Ravenhyper50

rrKey Veteran

Canada's Capital

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http://www.kongpower.com/faq_en/sho...xt01=&srhTxt02=

No problems until you hit below -40c. Not many home freezers can get that cold Like I said in an earlier post, I have been freezing since 2006 with great results! No problems with condensation, good lipos should be air tight. If you smell sweet & sour, time to chuck it!

Raven

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