Lithium Power Upgrade Q's

[BrianG]

Cool! Does the supply provide enough current when charging heavy batteries? I found that if I set the current to anything over 6A when charging my 14 cell GP pack, I get a low voltage alarm on my 7i. The 12v line drops a little to ~11.9v. Oh well. I'm currently building a 40A adjustable linear power supply for the big jobs.

I created 5v and 3.3v supplies just because they were there, but if you don't plan on using them, I wouldn't worry about it. Generally, I figure about 4A per wire. So, if you have 4 wires, that should be good for ~16A. If you have n positive wires, and n-1 negative wires, you'll only be able to draw as much current as the group with the least amount (if that made any sense).