Okay So I have 3 Multistar 4s 10ah lipo packs and on the third one the sides are fatter than the others and for some reason Cell #1 was drained to 2.8v and all the other 3 cells were at 3.5 to 3.7v, any idea why the first cell drained too quicker than the others? Should I try to balance charge them too 100% all the way until it beeps cause last few days I've been in a rush and basically letting it off when it is charging at 0.5a left when it has put around 9000mah and 16.80v in it.
One of my Multistar Lipos is draining too quick than others
- Thread starter cody196
- Start date
Icewrench
10 kW
Time to replace tthe weak pack. Time to take it out of service!
Puffy and weak voltage means that cell is no longer useable!
Puffy and weak voltage means that cell is no longer useable!
motomech
10 MW
Did you really have to start a new thread on the same subject w/ a different title? 
https://endless-sphere.com/forums/viewtopic.php?f=2&t=87962&p=1284925#p1284925
https://endless-sphere.com/forums/viewtopic.php?f=2&t=87962&p=1284925#p1284925
dogman dan
1 PW
Cell one is puffed, and no good anymore. Time for a replacement.
I wrote the series battery charging tutorial in the battery section many years ago so that lipo newbies could learn how to sort out things like this before they start riding with the pack and potentially burn their house down..
Next time, cycle graph your lipo bricks before you assemble them into a pack. Hobbyking's QC on multistars is horrible.. i would suspect that based on what i've heard, 20% or more of these that get shipped have a faulty cell that will misbehave starting at the first time you charge or discharge it.
Hobbyking sent me a pair of multistars to review for free 2 years ago. Both of them were faulty. I didn't even have to cycle graph them to determine that, just watched what happened after a charge.
Multistars are technically very impressive batteries. But you need to be even more cautious with them than the old 5ah 20C bricks that were/are still popular here.
Next time, cycle graph your lipo bricks before you assemble them into a pack. Hobbyking's QC on multistars is horrible.. i would suspect that based on what i've heard, 20% or more of these that get shipped have a faulty cell that will misbehave starting at the first time you charge or discharge it.
Hobbyking sent me a pair of multistars to review for free 2 years ago. Both of them were faulty. I didn't even have to cycle graph them to determine that, just watched what happened after a charge.
Multistars are technically very impressive batteries. But you need to be even more cautious with them than the old 5ah 20C bricks that were/are still popular here.
yeah, I would like to have decent range as long as i can go for a cheap price, preferably around $300 at most. I have a 40 amp controller and 44.4v nominal voltage used to have 60v nominal until cells went bad and wont hold a charge anymore. 10ah so if I do the math just right 50.4v x 40 amps = 2,016 watts of power, if thats the case then I can do the 50.4v x 10ah = 504 watt hours, so that means it can run 504 watts in 1 hour roughly. So I can do 2,016 / 504 = 0.25 so thats about 15 minutes run time roughly. SO I can assume that those Lipos are like borderline to handle that powerneptronix said:
dogman dan
1 PW
yes, if the other three are not acting up. Most likely the bad one had a contamination inside from manufacturing.
motomech
10 MW
dogman dan said:
Not really. If you read back thru the OP's posts, you will see those MultiStars have had a rough history.
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