Is the BD250 capable of a 5A discharge on 2S? The Manual states that the range on 2S is 29.76A - 35.00A
That was the main reason I haven't purchased one because I didn't always want to discharge at 29.76A on 2S.
Originally Posted by
Cromulent
Picked up a BD250 for more convenient discharging, and figured I'd give the software a test drive. At first glance, it seemed pretty useless, but then I realized I could run some tests to see how my batteries fare over a discharge cycle with it. I've been curious to see how my 4800 race pack stacks up against my 6100's for 17.5 off road racing... Trying to find out if the weight penalty worth the higher sustained voltage.
Test setup:
Balance charge packs to 4.2V/cell on my 408 duo @ 20A , then discharge at 5A to 3.5V/cell
Batteries Tested:
Reedy Zappers 4800mAh SG4 - IR 2-3 mΩ - 204g
Reedy Zappers 6100mAh SG4 - IR 2-3 mΩ - 215g
Reedy Zappers 6100mAh SG3 - IR 2-3 mΩ - 215g
I wanted to do a higher amp discharge more reflective of race conditions, but the 30s data interval limit of the software doesn't give enough resolution, and the voltage crashing could skew data a bit more.
Results:
Has anyone else seen or done similar? It seems like the ~11g weight penalty is worth the 0.1V benefit of the higher capacity for stock racing.