Alkaline batteries are the crappy ones that leak. Get the more expensive lithium batteries, or go full on rechargeable ones, and you can leave them in without worrying about your device getting ruined.
Rechargeable batteries self-discharge and get damaged if left unplugged for too long, and explode if left plugged in. They are not ideal for something you want to pack away in an emergency kit.
Alkaline batteries are the crappy ones that leak. Get the more expensive lithium batteries, or go full on rechargeable ones, and you can leave them in without worrying about your device getting ruined.
Rechargeable batteries self-discharge and get damaged if left unplugged for too long, and explode if left plugged in. They are not ideal for something you want to pack away in an emergency kit.