Abstract: Example systems and techniques are described herein for maintaining a rechargeable battery packs. An example battery management system includes processing circuitry coupled to memory and a plurality of battery connectors. The processing circuitry is configured to determine a first number of rechargeable battery packs removably coupled to a respective battery connector that comprise a respective charged battery and to determine a second number of rechargeable battery packs removably coupled to a respective battery connector that are in a storage mode. The processing circuitry is configured to determine that the first number meets the charged battery threshold and determine that the second number does not meet the storage mode threshold. The processing circuitry is configured to, based at least in part on the first number meeting the charged battery threshold and the second number not meeting the storage mode threshold, place a rechargeable battery pack in the storage mode.