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Unitech Energy System Limited
High-integrity Lithium battery and Wire Harness assmblies manufacturer in China
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Rechargeable 18650 2S2P 4400mah 7.4V Lithium Ion Battery Pack Customized OEM

Unitech Energy System Limited

Rechargeable 18650 2S2P 4400mah 7.4V Lithium Ion Battery Pack Customized OEM

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Brand Name : Unitech

Model Number : 18650 7.4V 4400mAh

Certification : CE ROHS MSDS

Place of Origin : China

MOQ : 200pcs

Price : Negotiable

Payment Terms : Western Union, T/T, L/C

Supply Ability : 100000pcs/Month

Delivery Time : 15 days

Packaging Details : Standard high safe package

Product Name : Li ion battery pack

Model : 18650 7.4V 4400mAh

Cycle life : 500 times

MOQ : 100pcs

Application : flashlight and emergency light

Quality : High quality 18650 battery cell

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Customized OEM Rechargeable 18650 2S2P 4400mah 7.4V Lithium Ion Battery Pack

Battery specification:

No. Items Specifications Remark
1 Nominal Capacity 4400mAh 0.2C Standard discharge
3 Nominal Voltage 7.4V
4 Discharge end voltage 6.0V
5 Charge Voltage 8.4V±0.03V By standard charge method
6 Standard charging method 0.2C constant current,8.4V constant voltage charge to 8.4V,continue charging till current decline to≤0.01C  
7 Charge current 0.2C 880mA Standard charge
0.5C 2200mA Rapid Charge
8 Standard discharging 0.2C constant current discharge to 6.0V  
9 Cell Internal Impedance ≤50mΩ Internal resistance measured at AC 1KHZafter 50% charge
10 Maximum charge current 1C 4400mA continuous charge
11 Maximum discharge current 3C 13200mA
12 Operation Temperature and relative humidity Range Discharge -20~60℃ 60±25%R.H. Charge at a very low temperature such as blew 0℃,will be get a lower capacity and reduce cycle life of the battery
Charge 0~45℃ 60±25%R.H.
13 Storage temperature for a long time ‘-10~45℃
60±25%R.H.
Do not storage exceed half year. Must charge once when storage for half year. must charge the battery with protect circuit when storage for three months.

Our battery advantages:

1, High energy density;

2, Safe and stable performance;

3, Environmentally Friendly and no memory effect;

4, With short-circuit, overcharge, over-discharge and over-current production, safe and reliable.

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Rechargeable 18650 2S2P 4400mah 7.4V Lithium Ion Battery Pack Customized OEM


Product Tags:

smart li ion battery pack

      

li ion 18650 rechargeable battery

      
Wholesale Rechargeable 18650 2S2P 4400mah 7.4V Lithium Ion Battery Pack Customized OEM from china suppliers

Rechargeable 18650 2S2P 4400mah 7.4V Lithium Ion Battery Pack Customized OEM Images

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