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HomeAircraftHelicopterHelicopter Main Discussion › 1S parallel charging questions
01-23-2016 04:03 PM  33 months agoPost 21
Heli Fanatix

rrVeteran

Fountain Valley, CA

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Yes, charging multiple packs in parallel can result in unbalance numbers at the end of a charge cycle unless you do it at a low charge rate.

Try this and you will be pleasantly surprise.

It's that simple.

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01-23-2016 04:37 PM  33 months agoPost 22
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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I don't mind charging single cells in parallel since they will balance themselves just by leaving them plugged together for a while.

although I haven't tried it yet with 6S packs, I would use a cell balancer on each pack when parallel charging.

one of my chargers has 2 ports for charging so I haven't had the need to do so

spending time, paying attention

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01-23-2016 05:34 PM  33 months agoPost 23
Heli Fanatix

rrVeteran

Fountain Valley, CA

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Exactly ... It's the Law of Equalibrium

Since you mention it, I will elaborate:
- I usually let the packs cool to ambient temperature first
- plug all the packs discharge leads into parallel board
- I don't plug in the balance leads
- let it sit for 1/2hr ~ 2hr (depending how apart the numbers are)
- charge @ a low amperage rate

It's pretty simple ... But when sharing on forums, I always get meet with another type of resistance ... LOL

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01-23-2016 06:22 PM  33 months agoPost 24
Heli_Splatter

rrElite Veteran

USA

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Certainly not resistance from me. I don't disagree with anything you have said. The better the health of your batteries, the better.

My point is only that using Parra boards can get you into trouble. You need to watch and test. If you disagree with that then so be it.

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01-23-2016 06:26 PM  33 months agoPost 25
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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I wonder how many balance charge vs fast charging ?
There are 3 options on my charger fast, normal or normal+balance
I could use my cell checker to verify the battery but by the time I do, I could have just plug it into the charger instead of checking.

My point is only that using Parra boards can get you into trouble. You need to watch and test. If you disagree with that then so be it.
I think most would agree and probably use external cell balancers.

Here's a fantastic deal on an excellent lipo balancer I have had 2 for many years and I may order 2 more now WOW!.
I paid 35$+ for the ones I have and still worth every cent
http://www.empirerc.com/hyperion-eo...10a-p-2660.html

spending time, paying attention

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01-25-2016 11:31 AM  33 months agoPost 26
grim.the.grim

rrVeteran

Houston, Texas

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+100 to everything that everyone has posted. They are spot on with great direction and advice. My only contribution is a link to a website that has a plethora of information on batteries. The web site is for when you are ready to get down to the science of what is happening to your batteries, how to get the last bit of performance from them, and how to care for them. The site discusses the various variables that have an impact on our batteries health: temperature, storage, depth of charge, etc.

I highly recommend you peruse some of the articals there. The link I am attaching is to an artical about battery health and the variables we can change to help prolonged battery life/health.

Hope this helps.

http://batteryuniversity.com/learn/...based_batteries

*** Real Pilots BEAT the air into submission! ***

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01-25-2016 04:17 PM  33 months agoPost 27
Aaron29

rrProfessor

USA

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Charging and choosing a correct battery/esc/motor spec are the two things that you MUST learn to succeed in electrics.

It used to be how to tune a nitro. But now, it's all about learning volts, watts, C ratings, lipos, harnesses, soldering, etc. This knowledge is the entry barrier to success in RC these days. Very glad you asked us for help. That was an excellent move. Also glad people didn't just burp out the simple answer, but went into some explaining and links.

Nitro was tough to learn. Electrics are a little easier but there is still a lot to learn to succeed.

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