** LIPO BASICS ** Read me first!

[Gregor99]

What charger do you have?

[luckyshot]

Originally Posted by Gregor99

What charger do you have?

EOS 720i Super Dou Huperion

[Gregor99]

I'm not sure what the max discharge wattage is on that charger, but I'm guessing that is what is limiting your cycle time. You can perform the discharge in the model down to 50%. Find something to work on that doesn't cause power spilkes. Depending on your skill level you could do some hovering in different orientations. Or practice stationary pirouettes upright or inverted.

Slyster likes to cycle his packs by using one pack as the power source to charge the other. Its simple and it works. Just need to make sure you don't over discharge the pack. Or you can build a high wattage discharger.

[Slyster]

And if these are new packs.. never cycle them in parallel.. do them individually. I use one to power the charger to charge the other, then reverse. Super fast that way.

[luckyshot]

sounds like a good idea.. But how does that work??.. If you use a 12v battery ( 6 cell 5000) to run the charger....doesn't that charger use more power then it produces?? so is you discharge a battery to 80% using a charged battery...doesn't the battery powering the charger end up with less then 80% therefore damaging the cells??? I'm sure there is a scientific answer but please dumb it down for me Thx

[Slyster]

Here's my thread on it from a while back. This will answer questions. Yes you need to know what you are doing and introduce some power at a point so the 'power supply' pack doesn't go to low.. there are losses.

https://www.helifreak.com/showthread.php?t=423919

[Gregor99]

Originally Posted by luckyshot

sounds like a good idea.. But how does that work??.. If you use a 12v battery ( 6 cell 5000) to run the charger....doesn't that charger use more power then it produces?? so is you discharge a battery to 80% using a charged battery...doesn't the battery powering the charger end up with less then 80% therefore damaging the cells??? I'm sure there is a scientific answer but please dumb it down for me Thx

There's is a little loss during charging. But during cycling I would target only to use 50% of the pack anyway. So you are above the safety zone. As I said, keep an eye on the source pack during this operation. I would put a cell checker on the pack to monitor the cells during their discharge.

[luckyshot]

oh..ok.. I have been cyceling my new 6 cell 5300 packs and I charged and discharged two packs all day. 5.3a in and 5a out.... also I bought Glacier Batterys. They came in with very drastic volts per cell. The first pack when threw with the first cycle and balance was 4.2 4.19 4.19 4.18 4.17 4.18 ?? shouldn't a quality pack be better then that??

[Gregor99]

Originally Posted by luckyshot

The first pack when threw with the first cycle and balance was 4.2 4.19 4.19 4.18 4.17 4.18 ?? shouldn't a quality pack be better then that??

Not these days. Pretty typical for new packs to have serious balance issues until broken in. Its going to a bit harder with your charger as it only has 300ma of balancing power. Struggle through it. The balancing will take some time. If you have a friend with a Powerlab or iCharger 4010 they may be able speed up the process for you.

[luckyshot]

I'm going to buy a PL8 next month. I thought this Hyperion was top notch when I got it last year... POS got outdated fast!! There go 300.

[luckyshot]

what is considered to high of a storage volt?? I cant figure my hyperion out. It seems to store the battery's at 60% of there compacity. So some of my 6cell 5000 battery's store at 3.85 and some store at 3.93 ?? I have a setting to discharge them to whatever volts but I cant change what the charger stores them at???

[Gregor99]

Storage is a range. I would use 3.7v to 3.9v. The storage setting may be adjustable. Probably need to check in the Hyperion thread on RCG as the manual is not complete.

[Usman]

Hello everyone I just have some general questions about LiPo batteries and how to properly use them....
1.) Is it alright for me to balance charge my LiPo batteries each and every time I charge them?
2.) Is it true that charging at a lower amp allows you to be more gentle on the cells, thus prolonging their lives?
3.) How long is it ok to leave your LiPo battery in storage after you have charged it to storage lipo charge?
4.) After getting a brand new LiPo battery and charging it full ( with balance charge-correct me if I shouldn't balance charge everytime ) and then back down to storage charge five times to break the batteries in...is there anything else I should do when getting new lipo batteries and using them the first set of times to make them last longer or perform better? ?

All the information will really help me as I'm new to this and just ordered some new lipo batteries today. I'd like to do things right and have them last as long as they can for me. Thanks !

[Slyster]

Originally Posted by Usman

Hello everyone I just have some general questions about LiPo batteries and how to properly use them....
1.) Is it alright for me to balance charge my LiPo batteries each and every time I charge them? This is what you should do.

2.) Is it true that charging at a lower amp allows you to be more gentle on the cells, thus prolonging their lives?1C charge is best, but who has the time. i charge at 3C and most packs handle it fine.

3.) How long is it ok to leave your LiPo battery in storage after you have charged it to storage lipo charge?Forever.. thats what storage mode is for.

4.) After getting a brand new LiPo battery and charging it full ( with balance charge-correct me if I shouldn't balance charge everytime ) and then back down to storage charge five times to break the batteries in...is there anything else I should do when getting new lipo batteries and using them the first set of times to make them last longer or perform better? ? No. Once cycles 5 times they are ready to go. Just follow the 80% rule and never store fully charged.

All the information will really help me as I'm new to this and just ordered some new lipo batteries today. I'd like to do things right and have them last as long as they can for me. Thanks !

Did you read the first post and the link to Tjinguys site?

https://sites.google.com/site/tjingu...arging-how-tos

[TorqTube]

Yes got it..thanks!

[Usman]

Thanks great information. Now after reading one segment on the "c" variable....if I have a 8000mah 30C 6S Lipo battery does that mean I can max charge it at 5 Amps which is the max my charger will charge at? How do I figure out easily , rule of thumb sakes, what is the best ampage to charge my batteries each time when I don't want to wait for them to fully charge at 1Amps? Example for my 2200mah 3S Lipo...i'm figuring 2.2A would be best?

[Slyster]

To charge a 6s8000mah at 1C would be 8A. A 2C charge, which would take half the time, would be a 16A charge. 3C is 24A etc. You might want a bigger charger. My charger can put out 80A if you feed it right

Yes.. a 3s2200mah would be 2.2A for a 1C charge, 4.4A for a 2C charge etc.

A 1C charge is probably best.. but not really needed. I charge all my packs in 15 mins because I use deep cycles and charge as I fly and I cannot wait 1 hour per lipo.

[luckyshot]

I contacted buddyrc and told them about my ballance issue. They said I could return it. My question is if the battery doesnt evenly ballance is that a sign of future issues?? I get 4.2 or 4.19 amps across the board at full charge...however at storage i get 3.85 in all cells except 3.71 in one cell?? What do you think .....good or return???

[Slyster]

Are these packs broken in? (ie cycled 5 full times)... if not do that first.

[Usman]

Thanks for all the help once again. I've got a Hitec X4 Charger and I'm now for the first time am going to store away my 3S 1000 and 2200 mAh batteries by running through a cycle of LiPo Storage. At how many amps ( right now its set at a default setting of 0.1a ) should I let these cycles run at? Should I leave it at 0.1a?
I also plan on running a cycle of LiPo storage on my 6S 8000 mAh LiPo batteries.....at what amp setting should I let them run their cycle of Lipo storage in ....01a as well? Thanks !