Going into lipo questions

justatree

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Do you need to discharge the lipo before you charge it up again?

Ex. For a 5000 mah lipo do you charge it at 5 amps or lower?

Any other tips about lipo care?

I got a lipo bag btw
 

Jerry-rigged

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No, don't discharge Lipos. Unlike Nicad or Nimh, if you discharge a lipo too much, you can permanently damage the cell.

Best charge rate is "1c" - C= capacity in amp-hours. 5000mah = 5ah, so charge at 5 amps.
 

justatree

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I ordered those lipo "lunch bags" LOL (fire proof) from hobbyking for $3 each, plus $7 shipping to me, was a steal
 

ARRMAgeddon

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Can i keep the lipos outside of the house
Maybe on a flower pot with cover on it?
I don't want to keep it inside the house
The smoke will destroyed what ever i have inside the house
Incase of fire
 

Dustin Mustangs

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Well, you obviously need to keep them dry. And being hot accelerates their decay so it should be a somewhat cool place that gets full shade. These two make outside storage tricky. I wouldn't be too worried about a fire during storage. Certainly be prepared for one but don't loose sleep over it. Charging and use are the two scenarios with any real risk and it is pretty easy to do that outside.
 

ARRMAgeddon

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it'll be dry thats for sure
I just don't want it inside the house
Any ideas how to keep them stored outside
What can i use
 

Dustin Mustangs

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I've seen people charge outside in an old bbq grill. I guess that could work for storage too given you kept it out of the sun. That is really important, direct sun can get them hot enough to puff and possibly even combust (even if you don't live in paradise ;)).

 

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I store all my LiPo's in an old ammo box, the type you can buy for just a couple bucks at any army surplus store. You can also buy the old ammo box on ebay, just make sure you get one made of metal.
 

ARRMAgeddon

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Im afraid of the smoke ruining things inside my house incase of fire
Plus i have smoke detector connected to my house alarm hahahha
 

justatree

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I saw Jang put his lipos into his fridge lol
to stop the lipo battery from deteriorating as fast
 

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Lipo batteries will only catch fire when:
  • being charged (and the unlikely case things go horribly wrong with too high currents and/or too high voltage)
  • being discharged in a wrong way (inside your RC for example)
  • getting seriously hot
  • punctured, or seriously damaged
  • short circuited
When just stored dry and not in a place where heat is, basically nothing can go wrong.

Nevertheless it is advisable to store in a fireproof lipobag, just in case anything goes wrong. Or an ammo box like Woodie has...difficult to get in Europe though...
 

Steve

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Well, you obviously need to keep them dry. And being hot accelerates their decay so it should be a somewhat cool place that gets full shade. These two make outside storage tricky. I wouldn't be too worried about a fire during storage. Certainly be prepared for one but don't loose sleep over it. Charging and use are the two scenarios with any real risk and it is pretty easy to do that outside.
I keep mine in the wine fridge, temp at a steady 52 degrees, between the Cabernet Sauvignon and the Pinot Noir.
 

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