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7.4V 9000mAh 21700 Battery Pack 2S2P For Arduino Robotics DIY Electronic Projects

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7.4V 9000mAh 21700 Battery Pack 2S2P For Arduino Robotics DIY Electronic Projects

Name: 74V 9000mAh 21700 Battery Pack 2S2P For Arduino Robotics DIY Electronic Projects
Brand: MEISAEN
Price: 1 USD

Buy cheap 7.4V 9000mAh 21700 Battery Pack 2S2P For Arduino Robotics DIY Electronic Projects product

Model Number : 21700-9000-7.4V

Payment Terms : T/T

Place of Origin : Shenzhen, China

Supply Ability : 100000PCS

MOQ : 1000PCS

Brand Name : MEISAEN

Certification : UN38.3 MSDS IEC62133 CE ROHS

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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

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