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📚Product Model: 11.1v 2800mAh 30c: 130mm * 16mm * 20mm 81g/31.1wh Plug Model:SM Plug,XT30 Plug,Reverse Plug,T-shaped Plug Chemical type:lithium cobalt oxide Charging working temperature:0~+45 ℃ Discharge working temperature:-10~+60 ℃ Product certification:MSDS Voltage:11.1V Voltage:3s Ratio:30C 📕Features: 1. High magnification polymer lithium batteries have a long service life and can be recycled and reused 2. Small size and high energy 3. Lithium batteries have stable power supply, large capacity, and long usage time 4. High magnification, supporting fast charging and fast discharging 5. Built in precision protection board to prevent overcharging and over discharging 6. Can be connected to a USB charging cable for charging 7. Strong compatibility, suitable size for use, customizable 【 Kind reminder 】 Do not use nickel cadmium (NICD), nickel hydrogen (NIMH), or other types of battery specific chargers to charge lithium ion batteries. Please use a Li ion dedicated charger for charging. Do not charge without anyone watching. Do not overcharge (the fully charged voltage of each battery cell should not exceed 4.25V). When charging, please note that the charging desktop or platform can withstand heat and high temperatures. At no time should the battery cells overheat. After the temperature of the battery cell reaches 60 ℃, there may be safety hazards, even combustion. When charging, the battery should not be approached or placed directly on flammable materials such as paper, plastic, carpet, ethylene, leather, wood, or straight Connect and charge in a model car or car. Do not over discharge (the voltage at which each cell is discharged should not be less than 275V). Over discharge may damage the battery, such as bulging. Do not keep the battery close to liquid or store it in a damp place. Do not place the battery near open flames or heaters or other sources of ignition. Please keep the battery out of reach of children. If there is a collision during use, please remov