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lodi · 03-30-2008, 09:34 AM

Ordered my Duo last week. I was about to purchase a PS on ebay but wanted to double check. I want to be able to charge a 2x 6s2500/25c lipos. I found a great deal on a 350W 13.8v 29A power supply. That should be more than enough, right? I have the option of getting one that is 500W 13.8v 40A but it is twice as much. What can I get away with here? Do I want higher voltage (15, 24) and less amps?

Thanks,

Dave

ImNix · 03-30-2008, 10:06 AM

29 amps is more than enough

jp73 · 03-30-2008, 04:02 PM

The manual says to get maximum output from the charger the input needs to be 15 V minimum. So 13,8 is not giving enough Volt.

I got a powersupply that gives 24-29 Volt with max 20 Amps. So I can get almost 2c on two 6S 5000 Trex batts.

mjws · 03-30-2008, 09:30 PM

I tested this pretty thoroughly with A123's 6s @10A that push the charger all the way. On a ~13V source it will pull 30A when cranked right up.

At 14.5V I was getting a full 360W, but that drops a little as the voltage drops. A very good 13.8V source should get you into the 160w per port range around ~90% of rated output. It runs extremely efficiently on 24V and requires only 16A to run at full bore.

There is a LOT in this thread, but it is probably the definitive thread on this charger at the moment (this is the detail version of the above test): http://www.rcgroups.com/forums/showp...&postcount=547

Mike

falconea45 · 04-02-2008, 01:51 AM

Lodi, If its the power supply I think it is they will supply a 15V version as well. If it is the ac switching ones they allow about a 5-7% +/- on the o/p voltage. Read the add closely to see if this is true.
It is always better to have a 40A power supply and using 30A than to draw 30A from a 30A supply and it allows for it if you need that little extra down the track.

03-30-2008, 09:34 AM	#1 (permalink)
lodi Registered Users My HF Map location Join Date: Jan 2008	Power Supply Help for Hyperion Duo Ordered my Duo last week. I was about to purchase a PS on ebay but wanted to double check. I want to be able to charge a 2x 6s2500/25c lipos. I found a great deal on a 350W 13.8v 29A power supply. That should be more than enough, right? I have the option of getting one that is 500W 13.8v 40A but it is twice as much. What can I get away with here? Do I want higher voltage (15, 24) and less amps? Thanks, Dave

03-30-2008, 10:06 AM	#2 (permalink)
ImNix Registered Users My HF Map location Join Date: Jan 2008	29 amps is more than enough __________________ -Nich LPS - Last Pack Syndrome - It's always the "last" pack.

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03-30-2008, 04:02 PM	#3 (permalink)
jp73 Registered Users Join Date: Jul 2006	The manual says to get maximum output from the charger the input needs to be 15 V minimum. So 13,8 is not giving enough Volt. I got a powersupply that gives 24-29 Volt with max 20 Amps. So I can get almost 2c on two 6S 5000 Trex batts.

03-30-2008, 09:30 PM	#4 (permalink)
mjws Registered Users Join Date: Jan 2005	I tested this pretty thoroughly with A123's 6s @10A that push the charger all the way. On a ~13V source it will pull 30A when cranked right up. At 14.5V I was getting a full 360W, but that drops a little as the voltage drops. A very good 13.8V source should get you into the 160w per port range around ~90% of rated output. It runs extremely efficiently on 24V and requires only 16A to run at full bore. There is a LOT in this thread, but it is probably the definitive thread on this charger at the moment (this is the detail version of the above test): http://www.rcgroups.com/forums/showp...&postcount=547 Mike

04-02-2008, 01:51 AM	#5 (permalink)
falconea45 My HF Map location Join Date: May 2006	Lodi, If its the power supply I think it is they will supply a 15V version as well. If it is the ac switching ones they allow about a 5-7% +/- on the o/p voltage. Read the add closely to see if this is true. It is always better to have a 40A power supply and using 30A than to draw 30A from a 30A supply and it allows for it if you need that little extra down the track.

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