Jiangxi Zhuokai New Energy Technology Co., Ltd.
Jiangxi Zhuokai New Energy Technology Co., Ltd. is a research, development, and manufacturing enterprise based in Jiangxi, China. We specialize in providing a wide range of products, including
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18650 2850mAh Cylindrical Lithium Ion Battery For Electric Bicycles
Lithium primary battery is a high-energy chemical primary battery, commonly known as lithium battery. Metal lithium is used as the negative electrode, solid salts or salts dissolved in organic solvents are used as the electrolyte, and metal oxides or other solid and liquid oxidants are used as the positive active material. General-purpose circular lithium manganese dioxide batteries and lithium fluoride carbon batteries are represented by the letters CR and BR, respectively, and the subsequent numbers represent the model of the battery. Lithium primary battery is a general term for this type of chemical power supply series using metallic lithium as the negative electrode material.
Lithium primary batteries have various structures such as button type, rolled cylindrical shape and rectangular shape. Lithium primary batteries have the advantages of high specific energy, long life, and resistance to leakage. Common structural forms of lithium batteries are cylindrical carbon pack type, square stacked type, cylindrical stacked type, cylindrical winding type, square winding type, etc.
| ltem | Specification | |||
| 3.1 Nominal Discharge Capacity | 28650mAh Charge: 0.68A, 4.20V, CCCV 68mA cut-off | |||
| 3.2 Nominal Voltage | 3.60V | |||
| 3.3 Standard Charge | CCCV, 0.68A, 4.20士0.05V, 68mA cut-off | |||
| 3.4 Rapid Charge | CCCV,1.5A, 4.20土0.05V, 68mA cut-off | |||
| 3.5 Standard Discharge | DC, 0.68A, 2.50V cut-off | |||
| 3.6 Max. Continuous Discharge | DC, 10.2A,2.50V cut-off (cut-off temperature 80°C) | |||
| 3.7 Charge/Discharge Voltage Range | 4.20~2.50V | |||
| 3.8 Cell Weight | 50.0g Max | |||
| 3.9 Cell Dimension | Height: 65.00+0.15mm Diameter: 18.35+0.10mm | |||
| 3.10 Operation Temperature | Ambient Temperature: Charge: 0 to 45°C Discharge: -20 to 60°C | |||
| Cell Surface Cut-off Temperature: Charge: 0 to 50°C (recommended recharge release < 45°C) Discharge: -20 to 80°C (recommended re-discharge release < 60°C) | ||||
FQA:
1. What battery can I use instead of 18650?
21700. 21700 – were designed to be a larger and higher capacity replacement for 18650 batteries. Like the 18650, the 21700 has a nominal voltage of 3.6/3.7V. The 21700 was designed to replace the 18650 in EV battery packs.
2. Why is there no 18650 batteries?
Due to product safety concerns, 18650 batteries are not allowed unless they are included with a product or accessory designed to use them.
3. Are 18650 batteries legal?
WASHINGTON, D.C. – The U.S. Consumer Product Safety Commission (CPSC) is warning consumers not to buy or use loose 18650 lithium-ion battery cells. These cells are manufactured as industrial component parts of battery packs and are not intended for individual sale to consumers.
4. Can a single 18650 charge a phone?
Lithium 18650 cells are 3.7V, which is too low to charge modern phones. They require a 5V supply. You could use a suitable boost convertor. A battery of 2 cells in series would supply 7.4V, too high for a standard USB connection.