- Lithium Ion 18650 cylindrical rechargeable batteries<br />- Lighting or other device needing 3.7V power<br />- Product print '3000mAh'、 the exact capacity is 2200mAh<br />- 2-Battery included<br /><br />                                                                                                                                Dimensions: 2.72 in x 0.71 in x 0.71 in (6.9 cm x 1.8 cm x 1.8 cm)<br />Weight: 3.17 oz (90 g)<br /><br />