Bosch battery rebuild - GBA 18V 2Ah rebuild 5S1P (no commentary) 

Sanyo UR18650RX 1950mAh (30A)
BIFRC DH30 spot welder
OEM tabs are thick af , at least 0.3mm or more , need a lot of current to hold the spotweld , V is not adjustable so I compensate with current. Looks like the welds hold firmly , time will test them.
Repas baterie Bosch GBA 18V
text correction 17:18 : "Keep your *strip in the vise"