Size 1 = 1* 16340 Battery    Size 2 = 2* 16340 Battery  <br />Package includes:<br />1/2 x 16340 Batteries.<br />1 x charger.<br />Charger Can charge 18650/16340/14500/10440/26650 battery<br /><br />Details of 16340 Battery:<br />RECHARGEABLE 3.7 V 16340 li-ion Battery.<br />No memory effect・ recharge up to 10000 cycles.<br />100% quality control of every battery.<br />Perfect for Flashlight・Camera・ etc.<br />Battery Dimension: 34mm(height) x 16mm (diameter).<br /><br /><br />Details of Charger:<br />Type: Electric<br />Color: black<br />Imput : AC 110-220V 47-63HZ<br />Output current: DC3.7V 450mah