Its weight was about 31.5 tonnes .
The first batch of 35 Char B1 bis used the original engine but from 1938 to May 1940 they were slowly re-equipped .
Char B1 's weight was about 31.5 tonnes .
The first batch of 35 Char B1 bis used the original engine but from 1938 to May 1940 they were slowly re-equipped .