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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> A123Racing Support >> Charger powersupply
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Charger powersupply - 8/5/2007 1:26:06 AM   
bb16


 

Posts: 55
Joined: 8/21/2006
From: , CA, USA
Status: offline 		How many amps does the sonic charger require out of its power supply?
       Post #: 1

RE: Charger powersupply - 8/5/2007 7:59:05 PM   
SS Pede



Posts: 320
Joined: 2/2/2006
From: Reading, MA, USA
Status: offline 		It charges at 10 amps, so you'll need at least that much. Might be nice to get a 15A power supply just to be safe.

(in reply to bb16)
       Post #: 2

RE: Charger powersupply - 8/6/2007 4:19:37 PM   
snellemin



Posts: 697
Joined: 3/22/2007
From: Tomball, TX, USA
Status: offline 		I had a motorola 10 amp powersupply and I would get the error light come on. I then used a converted PC power supply and have no more issues.

_____________________________

check out www.Hamdrl.com
Snelle-RC, A123 Racer

(in reply to SS Pede)
       Post #: 3

RE: Charger powersupply - 8/7/2007 7:25:46 PM   
Brijar



Posts: 16
Joined: 6/28/2007
From: Blue Springs, MO, USA
Status: offline 		I would suggest this power supply. I use it to power my charger for my A123's, and it works great! 17 amps on the +12vdc will give you plenty of juice, and it only costs $14 shipped. Then just cut and connect a few wires and add a resistor, and you're ready to go!

Good luck,
Brijar!!!

_____________________________

Only in America do you find Braile on Drive Up ATMs and Handicapped spaces at Roller Rinks.

(in reply to snellemin)
       Post #: 4

RE: Charger powersupply - 8/13/2007 8:54:04 PM   
pdf3@comcast.net


 

Posts: 19
Joined: 9/29/2003
From: Bellevue, WA, USA
Status: offline 		Hi Brijar!

Thanks for the tip on the power supply!! Since I'm not an EE, could you add some explanation regarding your comment " ... cut and connect a few wires and add a resistor .."?

Thanks,

Dave P.

(in reply to Brijar)
       Post #: 5

RE: Charger powersupply - 8/16/2007 2:12:52 AM   
Brijar



Posts: 16
Joined: 6/28/2007
From: Blue Springs, MO, USA
Status: offline 		Sure. All I really did was follow this PC Power Supply Conversion walkthrough, or one like it. I can explain what I did to this power supply in my own words, though:
1. Connected Orange wire to a Red wire
2. Connected Grey wire to a Black wire
3. Connected a Red wire to one end of one of these 10 watt 10 ohm resistors, and a Black wire to the other end
4. Securely attached resistor to case with zip ties and thermal compound
5. Made some way to connect 3 yellow wires to the positive wire of the charger input leads, and 3 black wires to the negative wire of the charger input leads
6. Attached 2 Christmas light bulbs to a Red wire and a Black wire (+5v line) and attached to top of case to tell when PS is on
7. Plugged extra PC power cord into power supply and wall, making sure PS was set to 115v and turned on

Good luck,
Brijar!!!

_____________________________

Only in America do you find Braile on Drive Up ATMs and Handicapped spaces at Roller Rinks.

(in reply to pdf3@comcast.net)
       Post #: 6

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