thrik hey! I know this is a few months old post, but I just found a possible solution! In Developer Options, go to Suspend Eecution for Cached Apps and set it to Disabled. This setting will allow apps to remain in the background executing their code for longer!
This seems to be doing something for me. I've moved on from Accubattery, using a root solution (ACCA) instead now, but this seems to keep my current apps alive longer. Might be the solution your looking for!