3600mAh 12V li ion rechargeable battery pack with barrel jack for arduino 3S 11.1-12.6V

Features
High quality 11.1 - 12.6V Li-Ion rechargeable battery pack sealed with industrial Black polyolefin
Made of 3 Megatronics.pk cylindrical 18650 cells
Light weight and higher energy density than any rechargeable battery
Longer storage life than NiMH battery
Perfect for building Arduino based projects and other small electronic devices.
 
Technical Specs
Capacity: 1800mAh (full capacity) 
Voltage: 11.1V, peak at 12.6V and each single cell 3.7V, peak at 4.2V
Dimensions:  80 x 38 x 38 mm  (Height x Length x Thickness)
Weight: 144g
Max. Discharge Current: 2C (4.0A)
Charging Voltage: DC12.6V 
Cycle life: 500 times.

Output cable: Barrel jack DC Power Plug - Standard 2.1 (5.5mm) compatible with Arduino and other mostly used devices

Storage temperature: -20~60C
Discharge temperature:-20~60C
Charge temperature:0~45C.
here is the link for charger : http://www.arduinopak.com/Prd_Detail.aspx?Prd_ID=20917
if you use our Imax b3 charger which is about 1A per cell and our cell being real capacity 2000mAh per cell can take 2 to 3 hours to fully charge, we suggest you use Imax B3 charger to maintain your battery pack life longer.
if you dont have smart balance charger this battery can also be charged with ordinary 12V to 13V charger adapter from input/output barrel jack of the battery, this method may effect the life of your battery pack.