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HomeAircraftHelicopterHelicopter Main Discussion › Do you balance every charge?
01-30-2013 03:35 PM  5 years agoPost 1
Stephen Born

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USA

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If I have time, I will balance my batteries when charging. However, when I have to "charge and go", there is no balancing.

Is it imperative to balance on every charge?

Cons?

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01-30-2013 03:39 PM  5 years agoPost 2
seflyer

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Northern California, Palo Cedro

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on my 3s 2100 packs I just charge and go, I did check a few of them that had at least 100 cycles and were all very close but they were used in a low amp draw setup. all of my high power stuff gets balanced every time as the charger needs the balance feedback to allow 8-10 amp charge rates.

Kevin

My heli is right side up -- the world is upside down

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01-30-2013 03:45 PM  5 years agoPost 3
Darren Lee

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Woodstock, GA

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With the capability of modern chargers, I see no reason not to balance charge every time. How much time are you saving by not balancing? It can't be very much unless your cells are way out of balance, which is a problem in itself and presents a danger when NOT balance charging.

Team Synergy / Rail Blades / Morgan Fuel

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01-30-2013 03:52 PM  5 years agoPost 4
Stephen Born

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USA

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I have found it does take longer to balance while charging.

Also, when I have the time, I will charge at a slow rate and balance. But again, this is not always the case. Sometimes, I double the charge and no balance.

The reason I bring this up is the notion of changing my routine if need be.

Thanks.

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01-30-2013 03:59 PM  5 years agoPost 5
Darren Lee

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Woodstock, GA

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The best way to save time while remaining safe is to parallel charge. This way, cells are balanced and can be charged at high rates but multiple packs are completed at once. I parallel charge six 6S 2600mAh packs at 30A (around 2C) which takes less than 30 minutes.

Team Synergy / Rail Blades / Morgan Fuel

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01-30-2013 04:01 PM  5 years agoPost 6
Stephen Born

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USA

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On one heli, I have 4 4000mAH and 1 2300mAh, so it can take a while.

Looks like another charger is in order.

Thanks.

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01-30-2013 04:15 PM  5 years agoPost 7
jschenck

rrProfessor

La Vista, NE.

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I've done that many times - slam in a charge to go fly then do a balance charge later. If the pack is healthy and you aren't drawing it way down I'd be confident you'd be ok with the pack. I also will pull them off the charger once it's down to the last bit of "balance charging". I just try and make sure to balance charge it in the next cycle or two.

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01-30-2013 04:29 PM  5 years agoPost 8
seldred

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Newnan, GA

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I use a hyperion 720i duo and balance charge every time. If I set my capacity to 95% when at the field I can balance charge a 6s 5000mah pack in about 20-25min. I have seen guys running the Power Lab 6 charger than can have 6s 5000 packs balance charged in about 12 minutes. They only charge this high and fast while at the field and have a few hundred cycles on the packs. With the capabilities of chargers these days I see no reason to not balance charge anymore..

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01-30-2013 04:37 PM  5 years agoPost 9
bkervaski

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Birmingham, AL, USA

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Two 6S examples:

4.19 4.19 4.18 4.18 4.20 4.19 (example 1, healthy charge)

- vs -

4.01 3.86 4.21 4.22 3.90 4.19 (example 2, big problem)

Chargers are going to try to balance cells almost exactly and can take a while .. it's perfectly reasonable to stop the balance process if your cells are relatively close to each other with no bad side effects (example 1).

If you're cells are all over the place as with example 2, let it balance out to make sure you don't have a bigger problem brewing.

Everybody focuses on the hundredths place on these cells, it's not that important, rounding the tenths place is where you should focus (4.19 and 4.21 are close enough), and overall relative consistency of the cells from charge to charge.

My $0.02

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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01-30-2013 04:44 PM  5 years agoPost 10
rexxigpilot

rrProfessor

Florida

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Yep, I do! Most chargers do this automatically, so why not. It can only help batteries last longer. It is also a good way to see when a battery is starting to get weak. One cell or more will charge faster than the others (it is damaged and has less capacity) and the time the charger spends balancing will increase tremendously.

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01-30-2013 04:44 PM  5 years agoPost 11
MrMel

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Gotland

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Letting the balancer finish you can skip perhaps if you do not over discharge the packs, but there is NO reason not to connect the balancer.

It's your safety line, before balancer was used, lipo fires was common.
Balancer connector is what makes lipo charging fairly safe no-a-days.

I balance every charge.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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01-30-2013 04:45 PM  5 years agoPost 12
RAK402

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Alhambra, CA

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Yes-Every Charge.

Team KBDD/Compass Team Manger/Experience RC/Team JR Americas/WR Field Rep

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01-30-2013 04:48 PM  5 years agoPost 13
rexxigpilot

rrProfessor

Florida

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MrMel, good point about the decrease in LiPo fires since balancing chargers became commmon.

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01-30-2013 05:30 PM  5 years agoPost 14
ZS-JAF

rrVeteran

Nazareth, PA

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I am a balence ever time guy
I balance and only parallel charge when I have to. I put the batts back to storage every time I fly. I have only ever had battery problems when leaving them charged for more than a day.

I have a 3D heli, I don't understand why it doesn't do 3D.

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01-30-2013 05:42 PM  5 years agoPost 15
ThumbBumper

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A little to the right and down!

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When I'm out at the field I rarely balance charge my batteries, however when at home I always do.

Honestly, I see very little difference between the balance charge times and non-balance charge times. Keep in mind though that I'm usually doing 3S 2200mah packs or smaller since nothing I currently own uses larger packs.

I do think however, that balance charging does keep your batteries in better condition overall.

Bob

If it ain't broke, go fly some more!
http://facebook.com/groups/TORCHS/

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01-30-2013 05:53 PM  5 years agoPost 16
honda411

rrKey Veteran

Surprise, AZ USA

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Agree with beeflyer2.

If the charger has a balancer then balance. I do every time and my batts charge quick

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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01-30-2013 05:57 PM  5 years agoPost 17
Ace Dude

rrProfessor

USA

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Some chargers (e.g., FMA) will not let you charge LiPos > 2s w/o the balance connector attached.

  

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01-30-2013 06:01 PM  5 years agoPost 18
McKrackin

rrProfessor

Lucasville,Ohio

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The best way to save time while remaining safe is to parallel charge. This way, cells are balanced and can be charged at high rates
Parallel charging is a great time saver but not a very efficient way to balance packs.

The charger just sees a 10,000mA container when two 5,000mA packs are hooked up in parallel.
That means the charger will supply enough to fill the single container but that doesn't always mean both packs get the correct amount of attention....One may under charge while the other over charges.
That's not likely to happen but certainly possible.

I literally never use the word literally right.

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01-30-2013 06:08 PM  5 years agoPost 19
scott011422

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Sycamore, illinois

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I also balance charge every time. I also only charge at 1.5x C MAX. The more current you introduce into the pack, the faster these little conductive crystals grow through the substrate of the pack. Once a pathway can be found through these crystals from the "+" to the "-" magic smoke is normally released.

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01-30-2013 06:10 PM  5 years agoPost 20
BladeStrikes

rrElite Veteran

Shelby TWP,Mi

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Balance charge every 2 cycle for me...
McKrackin
The best way to save time while remaining safe is to parallel charge. This way, cells are balanced and can be charged at high rates
Parallel charging is a great time saver but not a very efficient way to balance packs.

The charger just sees a 10,000mA container when two 5,000mA packs are hooked up in parallel.
That means the charger will supply enough to fill the single container but that doesn't always mean both packs get the correct amount of attention....One may under charge while the other over charges.
That's not likely to happen but certainly possible.
Sorry but from personal experience,your wrong..
Ive been parallel charging two 6S 5000mAh packs and two 6S 3300mAh packs well over a year and all cells on all four packs were balanced PERFECT (4.20V per cell)<----Thats checking each cell with a multi-meter and checking each pack with my iCharger...HUNDREDS of cycles with perfect balanced packs..

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HomeAircraftHelicopterHelicopter Main Discussion › Do you balance every charge?
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