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Author Topic: Battery Storage  (Read 901 times)

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Offline brookes745

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Battery Storage
« on: October 24, 2018, 20:37:01 PM »
Hi

I have a couple of 14.8v 30C 4S1P 4500mAh Li-Po's that I want to put into storage.They are both fully charged. A few questions if I may:
 
1. Should I discharge them before running the storage program on my charger.
2. What current should I set for the storage program
3. I assume that this is the right thing to do as I won't be using them for six months.

Sorry if this sounds a bit obvious but I'm quite new to Li-Po's and its still like a dark art to me at the moment..... ???

Thanks

Ian
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Offline Gaspin

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Re: Battery Storage
« Reply #1 on: October 25, 2018, 04:38:17 AM »
Drop the voltage reading to 3,80V either by usage or the "Storage" programme on your charger and put away in a cool, fairly constant temperature, place.

Offline PDR

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Re: Battery Storage
« Reply #2 on: October 25, 2018, 08:04:09 AM »
Drop the voltage reading to 3,80V either by usage or the "Storage" programme on your charger and put away in a cool, fairly constant temperature, place.

Just to be clear - that's 3.8v PER CELL (ie 15.2v for your 4s packs), not 3.8v for the whole pack!

PDR
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Offline wunwinglow

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Re: Battery Storage
« Reply #3 on: October 25, 2018, 12:40:42 PM »
The other thing that I do for safety is to store them in LiPo bags inside MoD surplus ammo tins which have the seals removed and small holes drilled in the lid. In the (hopefully unlikely) event of a fire, the combustion is contained and the tin does not become a bo*b!

Offline Gaspin

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Re: Battery Storage
« Reply #4 on: October 26, 2018, 11:27:58 AM »
Sensible management of Lipos requires you to safely dispose of those you no longer use or consider finished. A pile of old lipos in a plastic bag somewhere in the workshop or the house will seriously affect your fire insurance claim.
You know it makes sense, so don't hoard them, if there done get rid of them. :af :af


Offline ludwig

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Re: Battery Storage
« Reply #5 on: October 26, 2018, 20:00:20 PM »
That's like turning your back on old friends.

Offline itsme

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Re: Battery Storage
« Reply #6 on: October 26, 2018, 20:26:52 PM »
That's like turning your back on old friends.
...who would like to burn your house down. Yup, I have friends like that.

Offline FlyinBrian

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Re: Battery Storage
« Reply #7 on: October 27, 2018, 09:19:35 AM »
Keeping fully charged LiPOs for any period can be risky. I have two large capacity Zippy compact 4000 mAh which I charged soon after delivery but the model they were destined for did not get finished as quick as expected (do they evr)
They were in the bottom drawer of a workbench in my shed very close tom the floor. We had a couple of days of very hot weather - over  30 and although I kept the door open in the shed the Lipos swelled. I went in the drawer for something else and saw a couple of balloons whereI had put LiPOs I moved them outsidejust in case and they did reduce a bit in size and seem to have a good charge level on each cell so I put them back to the storage level.
Have yet actually to use them so don't know full extent of the problem.
Basic Research is what I do - when I don't know what I'm doing!.


 

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