4 x AA Battery Holder Box with USB Plug,with Switch and Cover

This Li-Ion 18650 3.7V 2600MAH Battery gives value for your money. It is a single cell, compact, and powerful battery cell with 2600 mAh capacity. It is very convenient to install in your project to fulfill a 3.7 Volt requirement with high capacity.

The battery terminals can use in any compatible battery adapter/holder or it can be permanently soldered to your application’s power source wires.

Features:

• High performance and capacity
• High energy density.
• Excellent storage performance and low self-discharge rate
• Capacity, resistance, Voltage, platform time consistency is good.
• Good consistency and low self-discharge.
• Flat top to suit many devices fitting. 
• High energy density
• High working voltage for single battery cells.
• Pollution-free, Long cycle life
• No memory effect
• Lightweight, small size
• Shape: Cylindrical Battery
• Battery Type: Lithium-Ion Battery

Application: 

• Portable equipment: POS, Portable printer, handset.
• Medical instrument: B ultrasound, Ecg monitoring instrument
• Military equipment: IR telescope
• Consumer electronics:PDA,MID,laptop,emergency light power source
• power tool  e-bicycle
• Industrial and commercial instrument: light power meter, Gas testing instruments, fusion splicer, flaw detector
• Electric toy:RC car/ boat/helicopter