Lipos not used for a bit

[Jnunu1]

Hi

I havnt had chance to use my lipos since May but I didnt sort out doing the "storage" mode thing with them.

Will they be ok to charge up and use - or will i burn to death?

[sosidge]

I was in the same situation (having left the cells un-store-moded for 6 months) and I survived.

But I did check the cell voltages before charging, and I did use the balance lead.

[jim76]

if they are still above 6v then they should be ok, but i'd defo watch them while they have the first charge in case they swell at all

[Big G]

I got given 2 packs of lipo. no idea how long they had been sat, but both work really well

[Jnunu1]

Originally Posted by sosidge

I was in the same situation (having left the cells un-store-moded for 6 months) and I survived.

But I did check the cell voltages before charging, and I did use the balance lead.

What sort of thing were you looking for on the voltages - 6V like Jim76?

Ta

[sosidge]

Originally Posted by Jnunu1

What sort of thing were you looking for on the voltages - 6V like Jim76?

Ta

Do the cells independently (ie measure through the balance port).

3V per cell would be a bare minimum. I'd be looking for something a lot closer to the nominal 3.7V or higher.

Mine had been left fully charged for over 6 months and they were still over 4V per cell. Balance charged evenly first time and no noticeable performance issues since. Intellect 5000 30C pack for reference.

[Jnunu1]

Hmm - tried to have a look at the lipos tonight.

Plugged them into my UDC30 on a balance charge and just got an alarm and "low voltage" warning on the battery check.

I cant seem to get the charger to do a reading on the cells without it "charging" - but I guess they must be below "safe" i.e 3v.

Any ideas anyone - or is it new lipos and a lesson learnt?!

[liam]

i get the low voltage warning if my 12v battery supply goes below 10v input

could be that unless your plugged into a mains supply