Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Low Thermal Rise 3.6V 4000mAh 70A Output 600 Cycles Life 21700 Battery Cell for","imgUrl":"https:\/\/img.chinax.com\/nimg\/17\/98\/3f1c1971e818ebc8da382f211cc4-200x200-1\/low_thermal_rise_3_6v_4000mah_70a_output_600_cycles_life_21700_battery_cell_for.jpg","attrs":{"Brand Name":"EMB","Model Number":"40PT","Certification":"UN38.3\/CE\/UL\/IEC62133\/KC\/BIS","Place of Origin":"China"}}
{"title":"Factory Price Original Tenpower 3.6V 6000mAh High Discharge Current 60A Low","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/75\/e211054d9282607e496c3d42c973-200x200-1\/factory_price_original_tenpower_3_6v_6000mah_high_discharge_current_60a_low_impedance_li_ion_cell.jpg","attrs":{"Brand Name":"Tenpower","Model Number":"60XG","Certification":"UN38.3\/CE\/UL\/IEC62133\/KC\/BIS","Place of Origin":"China"}}
{"title":"High Rate Discharge 21700 Battery Max Discharge 45A 3.6V 4000mAh Lithium Cell","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/8f\/90fff367994ddb909430feb02a3b-200x200-1\/high_rate_discharge_21700_battery_max_discharge_45a_3_6v_4000mah_lithium_cell_full_tab_cell_design_for_rc_car_and_drone.jpg","attrs":{"Brand Name":"EMB","Model Number":"INR21700-40XG","Certification":"UN38.3\/CE\/UL\/IEC62133\/KC\/BIS","Place of Origin":"China"}}
{"title":"Factory Price INR 21700 Battery 5000mAh Lithium Ion Battery MAX 8C Discharge","imgUrl":"https:\/\/img.chinax.com\/nimg\/6c\/98\/082841597a37ce34b125a97103e1-200x200-1\/factory_price_inr_21700_battery_5000mah_lithium_ion_battery_max_8c_discharge_rate_21700_battery_cell_for_e_motorcycle.jpg","attrs":{"Brand Name":"EMB","Model Number":"INR21700-50XG","Certification":"UN38.3\/CE\/UL\/IEC62133\/KC\/BIS","Place of Origin":"China"}}
{"title":"Hot Sale 5000mAh 3.58V 30A Max Discharge 12A Max Charge Lithium Battery Cell for","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/91\/2cb9d84aae17bccee70013d56089-200x200-1\/hot_sale_5000mah_3_58v_30a_max_discharge_12a_max_charge_lithium_battery_cell_for_medical_equipment_battery.jpg","attrs":{"Brand Name":"EMB","Model Number":"JP50","Certification":"UN38.3\/CE\/UL\/IEC62133\/KC\/BIS","Place of Origin":"China"}}
{"title":"Reliance RS40 3.6V 4000mAh Li-ion Cell 70A High Discharge Fast Charge 14A for","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/2b\/3661db11687f0c09be31c0659dc4-200x200-1\/reliance_rs40_3_6v_4000mah_li_ion_cell_70a_high_discharge_fast_charge_14a_for_power_tools_drones.jpg","attrs":{"Brand Name":"Reliance","Model Number":"RS40","Certification":"UN38.3\/CE\/UL\/IEC62133\/KC\/BIS","Place of Origin":"China"}}
Ultra-low Internal Resistance, High Rate Capability, Low Temperature Rise
Low Impedance
Max 5MΩ
Applications
Electric Tools, Gardening Tools, Cleaning Appliances, Drones
High Discharge Rate
Max 70A
Brand Name
EMB
Model Number
40PT
Certification
UN38.3/CE/UL/IEC62133/KC/BIS
Place of Origin
China
Low Thermal Rise 3.6V 4000mAh 70A Output 600 Cycles Life 21700 Battery Cell for Electric Motorcycle Power Bank
A premium rechargeable lithium-ion battery, the 40PT model is built to deliver long-lasting energy and dependable operation. Featuring 4000mAh of capacity and a 70A maximum continuous discharge rate, this cell caters specifically to high-demand scenarios, ensuring stable performance and extended service life.
Cell Characteristics
Specification
Value
Capacity
Typical 4000mAh (14.4Wh) Minimum 4000mAh (14.4Wh)
Cell Voltage
Nominal 3.6V Charge 4.2V Discharge 2.5V
Continuous Charge Current
Standard 2A Maximum 12A
Continuous Discharge Current
Maximum 70A
Ambient Temperature
Charge 0～45℃ Discharge -20～60℃
Impedance
≤5mΩ
Weight
69g
Dimension
70.6mm(Max) * 21.4mm(Max)
Charge Time
Standard charge: 150min Rapid charge: 40min
Cycle life
600cycle(60%)
Key Features
Extremely Low Internal Impedance:The full tab structure minimizes the current collection path, significantly reducing internal resistance compared to conventional cells
Excellent Thermal Management:The uniform current distribution results in low and even heat generation
High Discharge Rate: 70A continuous discharge, ideal for high-drain applications
Lithium-Ion Chemistry: Provides stability, efficiency, and low internal resistance
Rechargeable & Long-Lasting: Supports multiple charge cycles with minimal degradation
Output Stability: Stable voltage curve during discharge ensures continuous power output
Compact 21700 Size: Universally compatible with a wide range of electronic devices
Applications
Aerospace: Provides lightweight, high-energy-density batteries for spacecraft, drones, UAV, and model aircraft
Robotics: Supplies continuous power for high-load robots
Lightweight Power Equipment: Assists with power for electric motorcycles, snowmobiles, electric bicycles, and other lightweight power tools
Power Tools: Delivers high burst power for drills, angle grinders, electric saws, blow dryers, and other high-current tools
Cleaning Appliances: Provides stable and lasting power for vacuum cleaners, mite removers, floor washers, steam mops, garden tools, and more, ensuring work efficiency and long battery life.
Medical Electronics: Provides highly reliable power for life monitors, portable medical devices, and more
Warning
Lithium-ion batteries require proper handling and knowledge to ensure safe operation
Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage
Only purchase and use if you fully understand lithium-ion battery safety
Never leave a battery unattended while charging
Keep away from animals and children
Prevent contact with metal objects (keys, coins, tools) to avoid short circuits
Inspect wraps and insulators regularly for damage - repair or dispose of damaged batteries immediately
Resellers must pass these warnings to customers
Typical cycle life of 200-500 cycles before noticeable capacity reduction - recycle at end of life
