Active Member
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[China]
Address: MinXin commerce building, BaiHua Dong,GuangMing Street,ShenZhen,China
Contact name:Alex
Unitech Energy System Limited |
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Rechargeable 18650 18.5V 4400mAh 5S2P Lithium Ion Battery Pack
Battery specification:
| No. | Items | Specifications | Remark | |
| 1 | Nominal Capacity | 4400mAh | 0.2C Standard discharge | |
| 3 | Nominal Voltage | 18.5V | ||
| 4 | Discharge end voltage | 15.0V | ||
| 5 | Charge Voltage | 21V±0.03V | By standard charge method | |
| 6 | Standard charging method | 0.2C constant current,21V constant voltage charge to 21V,continue charging till current decline to≤0.01C | ||
| 7 | Charge current | 0.2C | 880mA | Standard charge |
| 0.5C | 2100mA | Rapid Charge | ||
| 8 | Standard discharging | 0.2C constant current discharge to 15.0V | ||
| 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 | 2C | 8800mA | continuous discharge |
| 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. | |
Application:
1. Portable equipment: POS, Portable printer, handset.
5. Electric toy: RC car/ boat/helicopter.
2. Medical instrument: B ultrasound, ECG monitoring instrument,
Electric pulmotor.
3. Consumer electronics: laptop, Emergency light power source,
Electrical tool, Electric bicycle battery.
4. Industrial and commercial instrument: light power meter, Gas
testing instruments, fusion splicer, Flaw detector.
Key Features:
• High quality 18650 battery pack li-ion battery pack;
• With good quality PCB for all protections;
• Higher energy density ;
• Long cycle life :>500 times;
• no memory effect and rechargeable;
• Short circuit protection and over current protection are avaliable;
• Avaliable terminals: soldering tabs, wires, connectors;
• Custom by in series&in parallel different shape;
Warranty:
-Long guarantee time: 12 months from shipping date
-Defective lipos caused by production, can be replacement, and the
new one will be sent with second shipment.
Our Service:
1. High quality: Restrict quality control in every step before shipping.
2. Best Service: We try our best to support customers as friends.
3. OEM Welcomed: PLS don’t hesitate to tell us your ideas.
4. Low MOQ: We hope can reach your every business demands.
5. Prompt & Favorable Delivery: We will share the best price advantage from our forwarder with you.
6. Customer centric Aim& Warranty: Your satisfaction is our honor; we will be back you ASAP.
