I bought a DIY kit from Hobbyking. I planned to buy a EZ-Robot kit for a while and for that price, I could not resist any longer. I had my doubts if it was really a genuine kit, but everything looked legit. I build a small two wheeled robot with it to get familiar with ARC etc.
I provide power to the EZ-B V4 with a 2s lipo. Everything was working fine, till I tried
to power up the EZ-B again today. Because I wanted to put the EZ-B into another robot, I had disconnected all external components. I plugged the lipo in (not fully charged at 7.6V) and at first nothing happened. No lights, no sound. Suddenly I heard a sizzling sound and noticed the well known smell. I immediatly unplugged the lipo. I removed the EZ-B from its shell, plugged it in the power base again and very briefly plugged the lipo in again. The two round components (capacitors?) on the lower board started to release their magic smoke. Is there anything I can do, before I try to contact hobbyking for replacement?
EDIT: I looked at my EZ-B v4 again and at the pictures on hobbykings and your website. While the top board is identical to the pictures, the lower board is different. It has only two capacitors instead of four.
Did the lower board also get a upgrade from EZ-B v4 to V4/2?
My lower board looks like the one on your EZ-B v4 comms upgrade page.