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40V Lithium Battery Pack Compatible with Black & Decker Power Tools
Compatibility: For Black & Decker
Voltage: 40V
Capacity: 2.0Ah 3.0Ah 4.0Ah 5.0Ah 6.0Ah
Type: Li-ion Battery (18650 cell)
Place of Origin: China
Product Introduction
- Brand: USPECIAL
- Voltage: 40V
- Capacity: 2.0Ah, 3.0Ah, 4.0Ah, 5.0A, 6.0Ahh (*optional)
- Discharge Rate: 10C (*optional)
- Output Power: 800W (*optional)
- Battery Type: Lithium-ion
- Operating Temperature: 0~45°C (charge); 0~55°C (discharge)
- Material: PC/ABS
- OEM/ODM/OBM: Available
Our custom lithium ion battery packs are designed and built to be used in conjunction with the appropriate power tools and interchangeable with the Black & Decker 18650 batterypacks.
Compatible models:The model will replace the Black Decker 40v Series battery pack, which is available for 2.0Ah, 3.0Ah, 4.0Ah, 5.0Ah, 6.0Ah, and it can be charged on a Black Decker firestorm charger.
The 18650 batterypack consists of ten 18650 lithium-ion cells, which provide powerful power support for the tool, ensuring unparalleled performance for your application. Of course, it offers a range of capacity options, providing flexible performance to meet your needs.
Our Advantages
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In-House Manufacturing
We operate our own production lines, giving us full control over every stage — from battery cell production to final pack assembly.
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Strong R&D Capabilities
We invest heavily in innovation — particularly in BMS technology — striving for higher precision, smarter algorithms, and enhanced safety features.
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High Production Efficiency
We maintain a daily output of over 5,000 battery packs, offering both small-batch flexibility and large-scale efficiency.
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Tailored Customization
We provide fully customized solutions — adjusting voltage, capacity, interfaces, and overall design based on your specific application.
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Rigorous Quality Control
All products go through multiple inspections and reliability tests, ensuring they meet international standards and perform dependably in the field.
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Reliable After-Sales Support
We ensure our battery packs operate safely and reliably, giving you peace of mind well beyond delivery.
FAQS
The company has passed ISO certification and its products have passed UN38.3, CE, CB, ROHS, SGS and other mainstream industry tests, and is fully insured with product liability insurance.
Of course, we support printing your logo, you can contact the customer service and send the logo file, we will make a rendering for your reference.
Stock samples can be shipped within three days, custom samples need 7-10 days. Bulk shipment will take about 25-35 days.
Of course, please contact customer service and put forward your sample requirements, we will make samples for you according to your requirements and send.
Our general MOQ is 100, if there are other special customization requirements according to the actual situation to agree.
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Contact us to get free quotation & battery solution.





