BugleBoy10

iTrader: (11)

billdelong

iTrader: (33)

I grew up in La Canada Flintridge

socalcloin

iTrader: (2)

I was trying to find info on Conditioning or breaking in new lipos and I saw a lot of mixed info... I got new packs so I decided to do a couple light cycles before I run them. What do most people do these days? What is your opinion on break in?

My packs are the Reedy Wolfpack 4200 shorty HV and this is what I am doing...
Charged at 2.1 amps up to standard lipo voltage 4.2v per cell
Discharged at 1 amp to 3.85v per cell
Charged at 2.1 amps up to HV lipo full charge 4.35v per cell
Discharged at 1 amp to 3.8v per cell
First use today will charge at 4.2amps up to standard lipo full charge 4.2v per cell, then run for 5mins check temps, then another 5mins
Let cool, then discharge at 1amp to 3.4v per cell
Charge at 4.2amp to 3.8v per cell for storage or standard 4.2v per cell if have time for another run.
Discharge/charge to storage.

Also for HV lipos - should storage still be about 3.8v? or is 3.85v per cell better?

billdelong

iTrader: (33)

I think LiPo break in was more important with < 25C packs... I think the norm these days are 100C packs and the amount of current our cars pull are fairly insignificant in terms of the 7C limit.

5Ah x 7C = 35A

Pretty sure that most 1/10 Mod 540 motors only pull around 20A - 30A max

If you're running stock, then the pack won't even break a sweat, ha!

socalcloin

iTrader: (2)

Cool thanks - yeah these packs I got are 50c not 100c but still that is like 210amps

I'm running 13.5T in a 1/10 4 wheeler which should be well below that.

rcbuggy88

For optimal battery IR, you take a new battery and cycle it at 40 amps until the IR is as low as desired. Although, this will shorten the life of the battery. (Doesn't matter for racing)