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Old 04-11-2012, 03:21 PM   #1
heathy
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Default Charging multipul packs ??

I have a hyperion 720i super duo running on a 24v 1100 watt power source.

Up till now i've been charging my 5000 mah and 3000mah 6s packs 1 on each port.

However, now i have more packs i've decided to get a 6 battery parallel board.

I remember reading a while back about a formula for working out how many packs can be charged at the same time.

My charger has 500w per side! And i need to know how many and at what "c" i can charge at.

I normally charge @ 2c.

Cheers..
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Old 04-11-2012, 03:30 PM   #2
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No formula per se, it is simply a matter of understanding how the packs add up when you wire them together, as you do with parallel charging. Say you are charging a 6s 5000mAh pack and you decide to charge with another of the same packs in parallel. When you connect them in parallel, you create a 6s 10000mAh equivalent pack, since parallel means the packs have the same voltage but the resulting capacity is the sum of the packs. Add a 3rd and you will have an equipment 6s 15000mAh pack. Once you know the resulting equivalent pack size, you charge accordingly. So 2C on a pair of 6s 5000 packs would be 20A or 2x 10A.

Be sure to understand that charging large packs in parallel very quickly maxes out even the largest chargers though. As you can see by the example above, 2x 6s 5000 packs at 2C maxes out one of the ports on your 720i SDuo.
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Old 04-11-2012, 03:36 PM   #3
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Chris,

Thanks for that, it was actually your site i read it on, but for the life of me i couldn't remember.

Just over there now

P.s, i can charge 4 5000 mah 6's packs @ 1c [ 20000 ] on port A and another 4 on port b then ? Thats good to know as i have exactly that amount of packs for my 7hv.
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Old 04-11-2012, 03:56 PM   #4
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Glad I could help.
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Old 04-11-2012, 03:58 PM   #5
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Old 07-18-2012, 09:12 PM   #6
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Chris, I scanned the threads and this post is the closet I found to ask a my question.

I have a hyperion 0615i Duo3 charger. I just upgraded from a single 12v 42a power supply to a 24v unit (pair of units together).

I purchased two para boards to use.

My batteries are 6c 5000mah.
I would normally charge 2 batteries at a time and it would take 45 minutes to do 3200mah in a pack on average.

So I set up to charge 3 batteries on one of the boards. I set the global settings to 24v and made a battery selection to have 15a charge on a 6 cell battery.
All was good in the test run (no magic smoke escaped from anything).

So I went ahead and started the charge.
All was well and I got a beep notifying me the charge was complete.
It was only 34 minutes?
In the window the message read END: Capacity
It only showed it had done 6215mah

Checking with my hyperion battery check they all read 81%.

Am I missing a step in the program for doing multiple batteries?
I have 6 batteries, my goal is to charge all 6 a one time, 3 on each channel charging at 1c.

thanks
Cliff

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