Artisan Power Motorola/Symbol MC3100 & MC3190 Scanners: Replacement Battery. 5200 mAh Extended Capacity Motorola/Symbol MC3100 and MC3190 Barcode Scanners Extended Capacity Replacement Battery Fully replaces battery number BTRY-MC31KAB02, 82-127909-02 and 82-127909-01 Lithium Ion Rechargeable Battery Pack | 3.7 Volt | 5200 mAh | Cells Made in Japan Longer Lasting: 5200 mAh capacity rating 8% higher than the OEM batteries. Manufactured by Artisan Power, a leader in premium quality replacement battery packs.