Key Features

1.High quality 7.4 V Li-Ion rechargeable battery pack
2.Made cylindrical 18650 cells with PCB and polyswitch for full protection
3.Light weight and higher energy density than any rechargeable battery
4.No memory effect and rechargeable
5.Longer storage life than NiMH battery
6.You can build 7.4V/4.0Ah Li-Ion battery pack by connecting two or three PCB ready battery module in parallel
7.Built-in IC chip will prevent battery pack from over charge and over discharge and prolongs battery life
8.Perfect for building 7.2V battery pack for bike lighting, RC toy (cars and airplanes), robots, cameras, DVD external battery.
9.Capacity: 2000mAh
10.Voltage: 7.4V
11.Low self-discharge rate under 3% self-discharge for one year
12.long cycle life over 500 times
13. Comply with IEC62133 CB CE safety standard
14.Safe to ship MSDS, UN38.3 cert. available

  Specification

Packing:
Shrink/Blister card/colour box/clamshell/Customized Package 
1. All shipping goods are 100% inspected and packed very well.

Our Service：                                                                                  

1.OEM Manufacturing welcome: Product, Package… 
2.Sample order 
3.We will reply you for your inquiry in 24 hours.
4.After sending, we will track the products for you once every two days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.

Additional safety notes: 

Do not use a NiMH/NiCad/lead-acid charger! Also, do not abuse these batteries, do not short, bend, crush, or puncture. Never charge or use unattended. Always inspect batteries and surrounding circuitry constantly for any damage, loose wiring, or the possibility of short circuits. Polarity matches all Adafruit LiPoly/LiIon chargers and boards, other brands may have reverse polarity and can destroy your battery. As with all Lithium-ion polymer batteries and with any power source – they should be used by experts who are comfortable working with power supplies.