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Old Jul 06, 2006, 08:40 PM
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Kaneohe, Hawaii
Joined Feb 2006
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Question
Conensus on DN Micro Charger or FMA Cellpro?

Seeing as these two do about the same thing for about the same price, what's the consensus? I'm still waiting on my DN to arrive, as well as my batteries! :P
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Old Jul 06, 2006, 09:42 PM
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Las Vegas, NV
Joined Jun 2006
73 Posts
I had the Cellpro 4s on order but was told by FMA thatit would be at least mid-July before it was available and that there was a good back log to fill. I cancelled and ordered the DN instead. Used it for the first time today and it seems to work well. It has .2a-2.0a charging in .2a increments. I tried each battery at 1.0, 1.6, and 1.8 amps and all charged well. I am a FNG though
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Old Jul 06, 2006, 09:58 PM
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Kaneohe, Hawaii
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Quote:
Originally Posted by levelOne
I had the Cellpro 4s on order but was told by FMA thatit would be at least mid-July before it was available and that there was a good back log to fill. I cancelled and ordered the DN instead. Used it for the first time today and it seems to work well. It has .2a-2.0a charging in .2a increments. I tried each battery at 1.0, 1.6, and 1.8 amps and all charged well. I am a FNG though
FNG is?
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Old Jul 06, 2006, 10:06 PM
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Las Vegas, NV
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oops, f'n new guy!
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Old Jul 07, 2006, 10:39 AM
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Wisconsin
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I've been using the Cellpro 4s since early may for my helicopter lipos. No problems yet, I always use auto charge. Only problem is that you may need to put different balance connectors on all your batteries.

Brian
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Old Jul 07, 2006, 02:40 PM
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Sunnyvale, CA
Joined Oct 2004
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from what I know. the CP4S is a serial charger with a internal balancer.
but DNP balance charger is a real parallel charger.

Jun
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Old Jul 07, 2006, 02:53 PM
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Kaneohe, Hawaii
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Quote:
Originally Posted by ildo
from what I know. the CP4S is a serial charger with a internal balancer.
but DNP balance charger is a real parallel charger.

Jun
Ahh. So CP4S is bleeding electricty from cells via balancing taps, whereas your DN charger is charging through the balancing taps, monitoring voltage so that it keeps them in balance. I guess I'll find out exactly how they compare once my batteries come in!
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Old Jul 07, 2006, 03:05 PM
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I believe so.

Jun
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Old Jul 07, 2006, 06:17 PM
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I do not believe that is corrrect. According to most reviews and information posted by FMA the cellpro charges each cell independently.

J.
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Old Jul 07, 2006, 10:48 PM
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USA, IN, Fort Wayne
Joined Jul 2003
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Quote:
Originally Posted by ildo
from what I know. the CP4S is a serial charger with a internal balancer.
but DNP balance charger is a real parallel charger.

Jun
The CP4S charges each cell as a separate cell. I ordered mine at the Toledo show and asked if it was possible to charge a pack by just using a single pos and neg lead and was told no, this charger is not a pack charger, it is a cell charger. FMA explained that there are 4 circuits in this charger and each cell is monitored separately. I bought a bunch of adapters and converted my flying packs. So far, I am very happy with it and I do like the readout for each cell which lets you see how much is going into that cell. One of the first things I tried was discharging a 3s to a different level for each cell then hooking it up to the Cellpro. The 3 readouts matched my DVM and after charging, all the cells were at 4.2 off the charger. After a couple of hours, they were all at 4.19. I did have a CSRC charger and used it for about 5 cycles then sold it and got the Cellpro. Nothing wrong with the CS charger, I just liked the Cellpro better.

Dave
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Old Jul 10, 2006, 11:04 AM
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USA, FL, Newberry
Joined Nov 2000
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Quote:
Originally Posted by 83GT
I do not believe that is corrrect. According to most reviews and information posted by FMA the cellpro charges each cell independently.

J.
I have tested both and they each charge cells independently. The Cellpro gives you a lot more information during the charge process. in addition to individual cell voltages:

1)**Shows Charge Amps and Amp Hours accurate to 1%.

2)** Fuel gauge eliminates the guessing of battery capacity remaining.* It shows 0 to 100% and is accurate to 5%.

3)** PC viewer software allows graphing of individual cell performance.
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Last edited by Red Scholefield; Jul 10, 2006 at 11:12 AM.
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