Mobility Scooter batteries need to be checked every 6 months to ensure they are satisfactory. Are you finding your Mobility Scooter just isn't going as well as it did before? Most likely the batteries need servicing or replacing. At Batteryworx NZ, we only use high quality SLA batteries for all types of Mobility Scooters. You can buy our Mobility Scooter batteries On-Line or In-Store. NZ wide delivery service.