Large-format battery management system with in-rush current management

A first battery pack configured for installation in a battery system for electrically powering an end device, wherein the battery system comprises a plurality of previously installed battery packs, wherein the plurality of previously installed battery packs in the battery system have identical electrical and electronic components to the first battery pack, the first battery pack comprising:

• a communication interface circuit configured to interface to a communication channel;
• a power bus interface circuit configured to interface with a power bus and configured to provide electrical power to the end device;
• a controller comprising at least one processor;
• and
• a memory storing controller instructions that, when executed by the at least one processor, cause the controller to:
• when the first battery pack is inserted into the battery system, generate an insertion indication via the communication channel, wherein the insertion indication includes an identification (ID) of the first battery pack;
• in response to the generating the insertion indication, receive from a master battery pack of the battery system, a disable message over the communication channel via the communication interface circuit;
• and
• in response to the receiving the disable message, disable charging and discharging through the power bus.

A battery system configured for electrically powering an end device and comprising a plurality of battery packs, the battery system comprising:

• a first battery pack including:
• a power bus interface circuit configured to interface with a power bus and configured to provide electrical power to the end device;
• a first communication interface circuit configured to interface to a controller area network (CAN) bus;
• a first controller comprising at least one processor;
• and
• a first memory storing controller instructions that, when executed by the at least one processor, cause the first controller to:
• when the first battery pack is inserted into the battery system, provide an insertion indication via the CAN bus, wherein the insertion indication includes an identification (ID) of the first battery pack;
• in response to the providing, receive from a master battery pack of the battery system a first disable message over the CAN bus via the first communication interface circuit;
• and
• in response to the receiving, disable charging and discharging through the power bus;
• and
• a second battery pack serving as the master battery pack of the battery system.