stunthanger.com

Electric Stunt => Gettin all AMP'ed up! => Topic started by: David Hoover on October 12, 2013, 06:28:52 AM

Title: Just Wondering....
Post by: David Hoover on October 12, 2013, 06:28:52 AM

Would this be a suitable power supply 

http://www.ebay.com/itm/15V-26-6A-400W-DC-Regulated-Switching-Power-Supply-CNC-400W-/140624617445?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item20bde15fe5

for this charger?

http://hitecrcd.com/products/chargers/dcdc-chargers/x4-eighty-4-port-multi-charger/product

Thanks.

Title: Re: Just Wondering....
Post by: John Rist on October 12, 2013, 08:24:18 AM

Reading the charger speck, max charge on a LiPo battery is 1C.  So assuming a 4 cell 3000 mah battery it would take a 44W input to charge at 3 amps.  Doing 4 at a time would be 177 W.  5 Cells takes 222W.  6 Cells takes 266W (assuming 3.7V per cell: 3.7V x 3 amps x 6 cells x 4 batteries = 266W).  So even allowing for losses, charging voltages and etc. a 400 W power supply should do.  However the charger speck calls for 30A minimum power supply indicating a 450 W supply is needed.  So I recommend you look at what batteries you plan to charge and if it is less than 300 W you should be safe.
I am sure others may have experience on this matter and will comment.
 ???