Many mobility power chairs, scooters, and lift chairs now come equipped with lithium batteries. While lithium batteries offer clear benefits—such as significantly reducing the device’s weight, extending travel range, and providing reliable backup power during outages for lift recliners—it is important to replace the battery with the manufacturer’s recommended battery for your specific unit. This option can be more expensive than the older approach, which used deep-cycle batteries that were widely available from local battery suppliers or various online retailers.