I'm changing an existing charger board to bigger batteries. Now the 3050 is dead. When I attach the batteries, both regulators are off. I'm assuming sleep mode. Turn on the pack voltage and the 3.3 is ok, but the 2.5 and RBI are still 0. How critical is the order of battery installation. I'm trying to use one plug for all four which means random power on. I hate to replace the part since it's buried only to blow another one.
The datasheet quotes max/min voltage on each battery relative to each other, but you can't plug them all in at once.