Product Category: Lithium-ion Rechargeable Battery Battery Dimension (max): 10.3mmT x 34.0mmW x 49.0mmL Product Type: TMB103449ART1800 Nominal Capacity: 1800mAh Nominal Voltage: 3.7V Standard Charge Current: 0.2 C5A Rapid Charge Current: 1 C5A Standard Charge Limited Voltage: 4.20 V+/-0.05V