Artisan Power Motorola/Symbol MC3100 & MC3190 Scanners: Replacement Battery. 2740 mAh Motorola/Symbol MC3100 and MC3190 Barcode Scanners Replacement Battery Fully replaces battery number BTRY-MC3XKAB0E and 82-127912-01 Lithium Ion Rechargeable Battery Pack | 3.7 Volt | 2740 mAh | Cells Made in Japan Manufactured by Artisan Power, a leader in premium quality replacement battery packs. Check out the extended capacity battery for an even longer lasting battery. http://www.amazon.com/gp/product/B00GR8BQQ6