18650 lithium ion battery pack 7.4V 4400mAh for bike head light
Negotiable /Piece
Min.Order:100 Pieces
Shenzhen Delong Energy Technology Co., Ltd.
Bike head light Rechargeable battery 18650 7.4V 4400mah 2S2P
Specification:
1)Nominal voltage : 7.4V
2) Typical capacity 4400mAh
3) Innner impedance ≤80mΩ
4) Discharge cut off voltage :4.8V
5) Charge protection voltage :8.5V
6) Max charge current : 0.5C charge current
7) Max discharge current : 2C discharge current
8) Charing method CC-CV
9) working temperature : charge : -20~45°C,45~85%RH Discharge: -20~60°C,45~85%RH
Features :
1. 100% A grade cell with real capacity
2. We will guarantee the cycle life of our battery should not less than 500 times
3. Excellent BMS protection functions which could protect the battery from any damages come from over-charge ,over-discharge ,short-circuit
even reverse connection protection etc .
4. We could design a different type battery pack in according to different application purpose : Such as High temperature application ,Low Temperature
Application ,High discharge rate current application etc
5. Application : our cylindrical battery pack could be widely applied on such areas :Electric tool battery pack ,UPS back-up power system,loud speaker device
Bluetooth ,MP3 ,MP4 ,medical device ,PDA , electric vehicle , POS Machine, Alarm Monitor etc
Model list of single cylindrical cell :
Model | Voltage(V) | Capacity(mAh) | Diameter(mm) | height | weight approx(g) | Discharge rate |
DL18650 | 3.6 | 1500 | 18.0 | 65.0 | 40 | 10C or 15C-25c |
3.6 | 1300 | 18.0 | 65.0 | 40 | 10c-20C | |
3.6 | 2200 | 18.0 | 65.0 | 40 | 2C | |
3.6 | 2000 | 18.0 | 65.0 | 40 | 2C | |
3.6 | 1800 | 18.0 | 65.0 | 40 | 10C | |
DL18500 | 3.6 | 1400 | 18.0 | 50.0 | 35 | 2c |
3.6 | 1300 | 18.0 | 50.0 | 33 | 2C | |
3.6 | 1100 | 18.0 | 50.0 | 32 | 10C or 20C | |
DL 17500 | 3.6 | 850 | 17.0 | 50.0 | 30 | 10C |
DL 17670 | 3.6 | 1500 | 17.0 | 67.0 | 38 | 2C |
DL 14430 | 3.0 | 700 | 14.0 | 43.0 | 43 | 2c |
DL 14500 | 3.6 | 650 | 14.0 | 50.0 | 28 | 2c |
DL 22650 | 3.2 | 2100 | 26.0 | 65.0 | 88 | 3c or 25C-30C |
DL 26650 | 3.6 | 3000 | 26.0 | 65.0 | 90 | 10c -20C |
DL 26650 | 3.6 | 4000 | 26.0 | 65.0 | 95 | 2c |
DL 22430 | 3.6 | 1300 | 22.0 | 43.0 | 42 | 10c or 10C-20c |
DL 32650 | 3.6 | 5000 | 32.0 | 65.0 | 135 | 3c or 2C |
Lifepo4 Cylindrical battery system | ||||||
Model | Voltage(v) | Capacity (mAh) | Diameter(mm) | Height(mm) | weight(g) | Cycle life |
LF18650FP | 3.0 | 1100 | 18 | 64.5 | 40 | 300 |
LF32650FP | 3.0 | 3800 | 32 | 64.5 | 128 | 300 |
LF26650FP | 3.0 | 2400 | 26 | 64.5 | 80 | 300 |
LF17500FP | 3.0 | 700 | 16.65 | 48.5 | 26 | 300 |
LF32650F | 3.0 | 4200 | 32 | 64.5 | 132 | 500 |
LF26650F | 3.0 | 2400 | 26 | 64.5 | 83 | 500 |
LF18740F | 3.0 | 1500 | 18.05 | 71.35 | 42 | 500 |
LF18650F | 3.0 | 1350 | 18.05 | 64.5 | 40 | 500 |
LF18500F | 3.0 | 950 | 18.05 | 48.5 | 28 | 500 |
LF17500F | 3.0 | 750 | 16.65 | 48.5 | 26 | 500 |
LF14500F | 3.0 | 500 | 13.95 | 48.5 | 20 | 500 |
LF17335F | 3.0 | 500 | 17.0 | 33.7 | 17 | 300 |