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18650 3.7V 4000mAh Rechargeable Battery Pack for Power Bank and LED Flashlight

  • Shenzhen, China
  • 10000PCS/Month
  • T/T, D/P, Western Union, Paypal, Money Gram
  • DL-3.7v 4ah
  • Packaged
  • Chargeable
  • 4000mAh or Customerized
  • Hybrid Electric Vehicles, Electric Bike
  • CB-IEC62133,Un38.3,Ce,RoHS,SGS
  • 1000 Times
  • Li-ion 18650 Battery
  • Credit Card.Paypal.Tt.Escrow
  • Acceptable
  • BMS
  • Yes
  • 1 Year
  • Standard Packing
  • 18650 lithium ion battery cells
  • China
  • Lithium-Ion Batteries
  • Car, Bus, Electric Power, Lighting, Electric Bicycle, Power Bank/Flash Light
  • 3.7V or Customerized
  • Medium Discharge Rate
  • Square Battery
  • Li-ion
18650 3.7V 4000mAh Rechargeable Battery Pack for Power Bank and LED Flashlight

Specification Remark
1 Nominal Capacity 4-10Ah
2 Nominal Voltage 3.7V
3 Max Charge Voltage 4.20V
4 Discharge Cut-off Voltage 3.00V
5 Charge Current 0.5C-3C
6 Discharge Current 0.2C-5C
7 battery cell&arangement
8 Cycle Life 300Cycle After 0.5C Discharge capacity 60%
9 Operating Temperature Charge:0-45ºC;Discharge:-30-60ºC
10 Storage Temperature
less than one year at 0-25ºC
less than three months at -5-35ºC
11 Battery Dimension Customized
12 Weight Customized

High capacity & stable discharge voltage
Light weight & small size & high performance than any rechargeable battery
Small internal resistance
Outstanding discharge properties and storage capacity
Pollution free,long cycle life, good discharging ability at high load, resistance of high temperature,
No memory effect
Factory price & high quality, existing stock for short delivery time

Our Services
12 monthes warranty
In the warranty period, non-artificial damage we will replace the latest parts for you.
Battery was transported by a dedicated channel
We have a special merchandiser, until confirm the delivery of products
Welcome to come up with any feedback and advice for our products.
MOQ: Sample order is available
OEM: Quantity and price is proportional to the relationship.
Strict quality inspection before shipping

Packing and Delivery
Inner packing with EPE pearl cotton,
outer packing with thick cardboard cartons
or customerized packing
On-time leadtime and 7-15 shipping before balance

About us
Established in 2011,we are a professional energy supplier in china focusing on the manufacture, research and sale of lithium ion battery products. Our product are widely applied on common digital devices battery, high discharge rate battery, powerful electric vehicles battery worldwide, We offer OEM and ODM service at factory price and high quality.
Warming welcome you to come to visit our factory for further information!!

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Shenzhen Delong Energy Technology Co.,Ltd is one of leading lithium ion battery manufacturer in China 




   9098,Dongbian Business Building,Minzhi Road 369, Longhua District, Shenzhen,P.R.C.

   Tel : +86 755 21012989
   Phone:+86 13538138168
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