Brand new IBC, Put BnB on the blocks, wired it up carefully, put a 60A meter in line with the 24v NiMH pack. Checked everything. Put the link in. Everything OK. Forward, reverse, etc on half stick, no problems. Went on full stick forward, meter showed about 6A, puff of smoke below the IBC, link then started smoking. Disconnected and removed the IBC to check, the diode under the big capacitor has gone and the PCB track underneath is damaged. :sad:The motors are the same ones Ive always had in BnB, 18v drill motors at 24v, maybe one of them has a fault?