The Speras R34 is a 3.7V 3400mAh high-capacity 18650 USB rechargeable Li-ion battery. The battery has a USB port on top, so you can directly charge it with any standard micro USB cable without the need to use a battery charger. It has a capacity of 3400mAh. It includes an over-charge and over-discharge protection circuit to ensure maximum performance.

Specifications:

• Brand: Speras
• Mode: R34
• Capacity: 3400mAh
• Voltage: 3.7V
• Charging current:1A(recommended), 2A(Max)
• Length: 69mm
• Diameter: 18.6mm
• Weight: 50 g