1.[About Packages] 1pc x bt-000318 battery included in the package. 2.[Compatible Model] for bar code scanner tc75 tc75x tc75ek tc75ek-2mf22ab-us tc75ek-2mb24ab-us tc75ek-22b24ab-us 82-171249-02 (Please us if you are not sure about your barcode scanner model number, we will help you out) 3.[ & Safety & Reliable] Upgraded tc75x Li-ion rechargeable battery the same size and thickness as your original tc75x battery. Our tc75x battery is manufactured with premium grade A++ battery cells, high quality Aluminum Casing and high quality Smart IC chip.It is tested under strict QC standards step by step to ensure it lasts over 800+ charge cycles. built-in microchip to prevent over-charging, over-discharging, short-circuiting, and over-heating. 4.[About Customer Service] Please feel to us at any time if you have any questions or any issues with our products or delivery. Our professional technical team and customer promise you a satisfactory resolution within 24 hours. We take care of all quality-related issues with a REPLACEMENT or REFUND.