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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"}}
{"title":"74Wh 7.4V 10000mAh Lithium Battery For Portable Devices Small Pumps Fans","imgUrl":"https:\/\/img.chinax.com\/nimg\/b5\/83\/fb7a671a7be37e0a32465553dd81-200x200-1\/74wh_7_4v_10000mah_lithium_battery_for_portable_devices_small_pumps_fans.jpg","attrs":{"Minimum Order Quantity":"1000PCS","Model Number":"21700-7.4V-10Ah","Payment Terms":"T\/T","Brand Name":"MEISAEN"}}
{"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"}}
This high-performance 7.4V 9000mAh (9Ah) 2S2P 21700 lithium-ion battery pack is designed to deliver consistent, long-lasting power for a wide range of portable electronics, robotics, DIY projects, and low-voltage devices. Built with premium Grade A 21700 cells in a 2S2P configuration, it balances capacity, stability, and safety to meet your power needs reliably.
Key Specifications
Parameter
Details
Nominal Voltage
7.4V
Rated Capacity
9000mAh (9Ah)
Configuration
2S2P (2 Series, 2 Parallel) using 21700 cells
Rated Energy
66.6Wh
Dimensions
42mm × 42mm × 70.5mm
Connector
Red JST 2-Pin Connector
Cell Type
Grade A 21700 lithium-ion cells
Cycle Life
Up to 500 full charge-discharge cycles
Protection
Built-in BMS (Battery Management System)
Operating Temperature
Charge: 0°C ~ 45°C; Discharge: -20°C ~ 60°C
Key Features
✅ High Capacity for Extended Runtime
With a 9000mAh capacity, this battery pack provides extended power for your devices, reducing the need for frequent recharges and keeping your projects running longer.
✅ Stable 2S2P Configuration
The 2-series, 2-parallel cell setup ensures steady voltage output and improved discharge performance, even under moderate loads, preventing power drops during use.
✅ Built-In Safety BMS Protection
An integrated Battery Management System safeguards against:
Overcharging
Over-discharging
Over-current
Short-circuiting
Overheating
This multi-layer protection enhances both safety and long-term battery health.
✅ Compact & Durable Build
Encased in a robust PVC heat-shrink shell, the pack is resistant to minor impacts and daily wear. Its compact dimensions (42x42x70.5mm) make it easy to integrate into most devices without taking up excessive space.
✅ Ready-to-Use JST Connector
Pre-fitted with a standard red JST 2-pin connector for plug-and-play installation, eliminating the need for complex wiring in compatible devices.
✅ Versatile Compatibility
Ideal for a wide range of 7.4V applications, including:
Portable speakers and amplifiers
LED lighting systems
Robotics and Arduino projects
Surveillance cameras
Medical and portable electronic devices
Small power tools
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 ...
