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jlustig83
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01.04.2009, 03:55 PM

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Originally Posted by redshift View Post
lol have you read any of your own thread?

I have a brand new Duo, will be charging 2S FP 4900 and 2S MA 6000 at 8 amps per port. which is a bit over 1.5C for the FP's and slightly under 1.5C for the MA's. Charge time is around 35-40 min.
I havent gone through the old posts for a little while lol. Any way let me know how that 30 amp power supply works cause i will probably buy that one or the 40 amp one.Thanks Redshift.
   
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redshift
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01.05.2009, 06:25 PM

Two big thumbs up!

But wow this 30 amp is actually bigger than the Rivergate 45 amp I returned. It is 13.8V output, not just 12 like I feared, I got 13.7 on my meter. There is a 3" fan in the back, and a fuse, and the cord is nice and long, about 5 feet. The output lugs are beefy and it has a large power switch.

Mike needs to carry these so I don't have to feel bad about giving something he doesn't carry a good review...

I'm impressed- and for the money I'm really impressed!
   
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BrianG
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01.05.2009, 06:27 PM

Did you by any chance open it up? I'm curious if there's a little fine-tuning pot in there to tweak the voltage to ~14.5v.
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redshift
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01.05.2009, 06:36 PM

I'll get some pics and post up a bit later Brian....
   
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redshift
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01.05.2009, 08:12 PM

Negative on that Brian- there are tamper-proof screws in the case. 13.8 is gonna have to be good enough ;)

The fan runs all the time, but it's quiet, and there are 2 way output lugs- they'll take banana plugs in the front and there are screw-pinch terminals with large gauge holes. Looks very well made, i really do think Mike should consider stocking these!
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jlustig83
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01.05.2009, 08:32 PM

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Originally Posted by redshift View Post
Negative on that Brian- there are tamper-proof screws in the case. 13.8 is gonna have to be good enough ;)

The fan runs all the time, but it's quiet, and there are 2 way output lugs- they'll take banana plugs in the front and there are screw-pinch terminals with large gauge holes. Looks very well made, i really do think Mike should consider stocking these!
man thats cool. im for sure gonna get the 40a one now. thanks.
   
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redshift
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01.05.2009, 09:50 PM

Yeah I'm glad I did the swap- you can't go wrong with the 40 amp for $100- could probably buy a pack with the $ saved.....
   
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e-mike
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01.11.2009, 01:39 AM

i dont want to be off topic but i have one question,,,,ive buy this charger and its a very good charger ..so a saw when my lipo are charging that im able to see the resistence of the pack.. what tell me if my lipo are in good shape,,,if the number is hight or low???ex.my two 4800mah 11,1 zippy-r are 40mΏ


they are in good shape or not??

thanks


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BrianG
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01.11.2009, 02:45 AM

The lower the number the more "ideal" a battery it is. "m" is milli, so they are 0.04 ohms. Not bad. Battery resistance is not linear though, meaning the resistance will be a bit lower at the high currents. If it was a flat 0.04ohms for any current, the voltage of a 11.1v pack would drop to 7.1v @ 100A. The best way to gauge a battery's performance is to graph it real-time under the heavy load. But, at least this gives you a relative idea compared to other packs...
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e-mike
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01.11.2009, 11:29 AM

Quote:
Originally Posted by BrianG View Post
The lower the number the more "ideal" a battery it is. "m" is milli, so they are 0.04 ohms. Not bad. Battery resistance is not linear though, meaning the resistance will be a bit lower at the high currents. If it was a flat 0.04ohms for any current, the voltage of a 11.1v pack would drop to 7.1v @ 100A. The best way to gauge a battery's performance is to graph it real-time under the heavy load. But, at least this gives you a relative idea compared to other packs...

thanks BrianGi was scrad that my pack was a crap....


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