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{"title":"7.4V 21700 Lithium Battery 20000mAh High Capacity For Robotics DIY Power","imgUrl":"https:\/\/img.chinax.com\/nimg\/a9\/f0\/1781ec68f7316d0c80c4ae421543-200x200-1\/7_4v_21700_lithium_battery_20000mah_high_capacity_for_robotics_diy_power_projects.jpg","attrs":{"Place of Origin":"Shenzhen, China","Model Number":"21700-20000mAh-7.4V","Payment Terms":"T\/T","Brand Name":"MEISAEN"}}
{"title":"8000mAh 3.7V 1S2P 21700 Lithium Battery With High Rate Discharge Large Capacity","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/fa\/46c2314db680fc11412b630f9aaf-200x200-1\/8000mah_3_7v_1s2p_21700_lithium_battery_with_high_rate_discharge_large_capacity.jpg","attrs":{"Certification":"UN38.3 MSDS IEC62133 CE ROHS","Packaging Details":"carton","Delivery Time":"10-15 days","Dimensions":"Length 42.5mm * Width 21.5mm * Height 710mm"}}
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{"title":"21700 3P Lithium Battery 15000mAh 3.7V For LED Lights Portable Devices","imgUrl":"https:\/\/img.chinax.com\/nimg\/74\/70\/ab80d44e92ff36e352827da4feec-200x200-1\/21700_3p_lithium_battery_15000mah_3_7v_for_led_lights_portable_devices.jpg","attrs":{"Model Number":"21700-15000","Packaging Details":"carton","Brand Name":"MEISAEN","Minimum Order Quantity":"100PCS"}}
{"title":"118.4Wh 16000mAh 7.4V 21700 Lithium Battery For High Demand Devices BMS","imgUrl":"https:\/\/img.chinax.com\/nimg\/4c\/94\/d0db1719f5de8d4e39c128f7a92a-200x200-1\/118_4wh_16000mah_7_4v_21700_lithium_battery_for_high_demand_devices_bms_protected.jpg","attrs":{"Model Number":"7.4V 16000mAh 21700","Payment Terms":"T\/T","Brand Name":"MEISAEN","Minimum Order Quantity":"1000PCS"}}
{"title":"3.7V 8000mAh High Capacity 21700 Lithium Battery Pack 1S2P For LED Floodlights","imgUrl":"https:\/\/img.chinax.com\/nimg\/aa\/ab\/37b479ad31c6cb7c1de5c36469be-200x200-1\/3_7v_8000mah_high_capacity_21700_lithium_battery_pack_1s2p_for_led_floodlights_smart_locks.jpg","attrs":{"Certification":"UN38.3 MSDS IEC62133 CE ROHS","Place of Origin":"Shenzhen, China","Minimum Order Quantity":"1000PCS","Payment Terms":"T\/T"}}
Power your portable devices with this high-performance 7.4V 8000mAh 21700 lithium-ion battery pack. Built with premium 21700 cells in a 2S2P configuration, this pack delivers stable 7.4V power with a massive 8000mAh capacity, ideal for power-hungry electronics requiring long runtime.
Key Features
High-Capacity Performance: 8000mAh nominal capacity at 7.4V (8.4V fully charged), providing extended runtime for your devices.
Premium 21700 Cells: Utilizes high-quality 21700 lithium-ion cells for high energy density and reliable performance.
Integrated Safety Protection: Built-in BMS safeguards against overcharge, over-discharge, overcurrent, and short circuits for worry-free use.
Compact Form Factor: Dimensions of 42 × 42 × 70.5mm make it easy to integrate into various projects and devices.
Plug-and-Play Connector: Pre-fitted with a standard 2-pin red connector for easy installation (custom connectors available on request).
Durable PVC Encapsulation: Blue PVC heat shrink casing offers excellent insulation, moisture resistance, and impact protection.
No Memory Effect: Recharge at any level without reducing overall capacity, ensuring consistent power delivery over time.
Specifications
Parameter
Details
Cell Type
21700 Lithium-Ion
Configuration
2S2P (2 Series, 2 Parallel)
Nominal Voltage
7.4V
Nominal Capacity
8000mAh
Rated Energy
59.2Wh
Full Charge Voltage
8.4V
Cut-off Voltage
6.0V (typical)
Connector
2-Pin Red Connector
Dimensions
42 × 42 × 70.5 mm
Protection
Overcharge, Over-discharge, Overcurrent, Short Circuit
Operating Temp (Discharge)
-20℃ ~ 60℃
Operating Temp (Charge)
0℃ ~ 45℃
Common Applications
Perfect for powering a wide range of 7.4V / 8.4V devices:
Portable speakers and audio equipment
LED lighting systems and outdoor string lights
Robotics, automation projects, and RC vehicles
Small power tools and DIY projects
Medical devices and monitoring tools
Backup power supplies and portable electronics
Safety & Usage Tips
Use only a dedicated 8.4V lithium-ion battery charger with matching polarity to avoid damage.
Do not expose the battery pack to water, high humidity, or extreme temperatures outside the specified ranges.
Keep away from metal objects that could short-circuit the terminals.
If the pack swells, leaks, or emits an unusual smell, discontinue use immediately.
Store in a cool, dry place with a 40-60% charge level for long-term storage.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2016
Total Annual:
2000USD-3000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Shenzhen Meisha New Energy Technology Co., Ltd. is a comprehensive enterprise mainly engaged in industry-customized battery modules, scheme design, research and development, production and marketing, and its technical level is in the leading position in the industry. Established in July 2016 with a ... Shenzhen Meisha New Energy Technology Co., Ltd. is a comprehensive enterprise mainly engaged in industry-customized battery modules, scheme design, research and development, production and marketing, and its technical level is in the leading position in the industry. Established in July 2016 with a ...
