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10-24-2011 07:05 AM  6 years agoPost 1
robv

rrApprentice

SoCal

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...which would you choose?

Hyperion 720i Super DUO 3 or Cellpro Powerlab 8?

I think the Powerlab is far superior that the 720i, but the convenience of having dual ports gives the 720i a huge plus. What do you guys think?

Team JR | Gens Ace | YS Engines | Scorpion Motors | Pure Tech

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10-24-2011 09:48 AM  6 years agoPost 2
kiksko

rrApprentice

San Lorenzo, CA

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pl8

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10-24-2011 10:21 AM  6 years agoPost 3
wrongler

rrProfessor

Brewerton, New York

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I have a Hyperion and have used it for about 2 years charging 2-5000mah 6s batts at the same time with the dual ports. Its dependable and easy to use. So I would stick with Hyperion.

Bill Whittaker

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10-24-2011 02:36 PM  6 years agoPost 4
Two Left Thumbs

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Houston, Texas - USA

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PL8 over here. That said, both are great chargers, pick your horse...

If you need a second port for a different battery chemistry or cell count, get a second PL8 Or if it is to charge up smaller TX and RX packs, any number of smaller chargers will do.

Dual port is a great feature, but it also divides the power output. In my case I charge 6s 5300 packs, four at a time, at 2C. That is 10A per pack, or 40A total, the charger maximum. If that were split into two ports, I would have to use both ports anyway (and two sets of parallel cables), to achieve the same thing. In which case, the second port is in use, so no net advantage.

It really depends on how you plan to charge and rotate packs. For parallel charging larger high capacity packs, I prefer a single more powerful port. If the packs were smaller, than a Duo would be a good choice, because one port could handle the flight packs, leaving the second port for other uses.

Dual ports is a nice feature, but it only makes sense if it fits your charging needs. I compared scenarios, and decided the PL8 was best for me.

There is also the discussion of FMA's parallel system, which is different from all the rest. It is more expensive, only you can decide if it is worth it.

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10-25-2011 05:44 AM  6 years agoPost 5
robv

rrApprentice

SoCal

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Thanks.

What about IR? How beneficial is it to have the capabilities of reading the internal resistance of the battery packs? Also, will the PL8 give the IR for each pack and/or individual cell when parallel charging, say 4 packs at a time?
I have a Hyperion and have used it for about 2 years charging 2-5000mah 6s batts at the same time with the dual ports. Its dependable and easy to use. So I would stick with Hyperion.
Wrongler,

Which charger do you have an how well does your Hyperion charger balance your battery packs?

Team JR | Gens Ace | YS Engines | Scorpion Motors | Pure Tech

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10-25-2011 05:57 AM  6 years agoPost 6
TheWoodCrafter

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Costa Mesa, Ca.

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If you are charging similar packs (S) parallel charging, I think can be, more useful because of the higher output chargers available. Most duel port chargers are capable of half of what the higher output chargers are.

Don't forget a PS to power this new charger.

Thanks, TheWoodCrafter

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10-25-2011 05:32 PM  6 years agoPost 7
Two Left Thumbs

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Houston, Texas - USA

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The PL8 gives an IR reading which is the average of the parallel connected packs. If you want the IR for a single pack, that single pack must be connected individually.

IR is only given on charging, and takes a few minutes.

They way I do it is to charge all new packs individually, that way I get an IR reading on the pack. Once I have that, then I can monitor the IR during parallel charging, realizing that it is an average. After a while you learn your numbers, and if something changes say on cell #3, the only way to know which pack is to hook them up one at a time.

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10-25-2011 05:41 PM  6 years agoPost 8
Phaedrus

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S. Orange County, California

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Hyperion Super DUO would be my choice. If my current v1Hyperiond DUOs ever give me a reason to buy a new charger that is what I am getting. I have several Hyperion chargers going all the way back to a couple of 1210s and including my two v1 DUOs. Never had an issue, they work great and I am well pleased with them.

AMA Leader Member
Go FASST, or Go Home!!
Team Futaba

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10-25-2011 06:38 PM  6 years agoPost 9
Steff Giguere

rrProfessor

St-Eustache, Quebec, Canada

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Both are very good chargers, both with advantages and both with disadvantages, either one will be great.

Team Synergy, Rail blades, Team Scorpion, V-Team

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10-25-2011 06:52 PM  6 years agoPost 10
Darren Lee

rrElite Veteran

Woodstock, GA

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The PL8 gives an IR reading which is the average of the parallel connected packs. If you want the IR for a single pack, that single pack must be connected individually.
Are you sure it's an average? I don't have a PL8 but with my 306B, the only way to get a useful IR reading is one pack at a time.

When multiple packs are connected in parallel the IR reading is always very very low, typically zero. This is with packs measuring 1-2mohm individually.

The reason for this can be explained here:

http://www.wikihow.com/Calculate-Se...llel-Resistance

Team Synergy / Rail Blades / Morgan Fuel

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10-25-2011 07:02 PM  6 years agoPost 11
TheWoodCrafter

rrKey Veteran

Costa Mesa, Ca.

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beeflyer2,

I never knew parallel resistance was calculated that way.

I always though it was the lowest resistance.

Thanks for sharing.
Very informative.

Thanks, TheWoodCrafter

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10-25-2011 08:45 PM  6 years agoPost 12
Two Left Thumbs

rrKey Veteran

Houston, Texas - USA

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Bee, you got me there. I looked at your link, but have to digest that after working hours. Possibly FMA also handles these figures in different ways, depending on how many packs it is told are in parallel (for example, the way it reports current when charging in parallel). Probably a good question to put to the FMA support thread on RCG.

So to the OP, the most straight forward way to read IR is one pack at a time.

FWIW when I parallel charge 4 packs on the PL8, I get IR readings in the 1 to 2 range.

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10-25-2011 09:01 PM  6 years agoPost 13
Darren Lee

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Woodstock, GA

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What's the typical range for those packs read individually?

Team Synergy / Rail Blades / Morgan Fuel

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10-26-2011 03:18 AM  6 years agoPost 14
Two Left Thumbs

rrKey Veteran

Houston, Texas - USA

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IR Graph
Typical reading is between 1 and 2 mohm.

Below is the first charge on a new pack. Charged by itself on a PL8, no other packs in parallel. The pack is a Gens Ace 6s 5300 30C.

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10-26-2011 06:07 PM  6 years agoPost 15
HeliMan Dave

rrVeteran

Suburban Chicago

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To add for robv...

The Super Duo will only give you IR for a whole pack. The PL8 (or new PL6) will give you IR for each cell in a pack.

I personally like to keep close tabs on packs so I prefer my PL8.

For the record, I also have a Duo 3, Super Duo and cellpro 10s charger.

Diabolo 700UL / Logo 700 / 600 / 500 V-Bar NEO / Oxy 2 / Blade 180CFX / mCPX BL / Nano / V-Control

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10-26-2011 08:42 PM  6 years agoPost 16
robv

rrApprentice

SoCal

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Hellman,

So the 720i does give the IR? I thought this whole time it did not! Wow, thanks! That changes things a bit.

Team JR | Gens Ace | YS Engines | Scorpion Motors | Pure Tech

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10-26-2011 09:12 PM  6 years agoPost 17
TJinGuy

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Socorro, NM - USA

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It gives whole pack IR, not per cell IR, making it much less useful.

- Chris

Team New Mexico
TJinTech

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