Enouvation Power Packs have been designed to be the ONLY source of power for your furniture. If a battery is used as a backup, it will continuously have power running through it, and will maintain a 100% charge unless the battery management system is designed otherwise. While this option may sound appealing, a Power Pack is at its most vulnerable state when fully charged. For best safety practices, follow our product instructions: disconnect Power Pack from furniture, inspect Power Pack and wiring ensuring they are damage free before EVERY CHARGE. ONLY USE THE DESIGNATED ENOUVATION CHARGER INCLUDED WITH YOUR POWER PACK. Power Pack output is disabled when charging. Keep Power Pack and wiring clear of moving parts. DO NOT CRUSH POWER PACK.