This battery pack is engineered with a focus on stability, safety,
and long-term performance. Each component is optimized to
ensure consistent power delivery under demanding working conditions.
One of the most common concerns from distributors sourcing a 20V lithium battery pack is simple: will it deliver stable power under continuous load, and remain reliable across large-volume orders?
The WACTEC 20V lithium battery pack is engineered to solve exactly that. Built with high-discharge 18650 cells, intelligent battery management, and a stable production process, it is designed for professional cordless tool systems and long-term distribution projects.
This 20V lithium battery pack is built with a professional-grade 5S2P configuration to provide stable output in demanding applications such as hammer drilling, fastening, and grinding. For distributors, that means lower performance fluctuation and better consistency across repeat orders.
| Battery Type | Lithium-ion (18650 Cells) |
| Configuration | 5S2P (10 Cells) |
| Nominal Voltage | 18V |
| Max Voltage | 20V |
| Capacity | 4.0Ah |
| Continuous Discharge | 30A |
| Peak Discharge | ≥60A |
| Internal Resistance | <13mΩ |
| Protection System | Intelligent BMS |
| Temperature Protection | 80°C Cut-off |
| Cycle Life | ≥300 cycles |
This configuration helps reduce voltage drop and supports stable output during high-load working conditions, which is essential for a reliable power tool battery pack.
A reliable 20V lithium battery pack depends not only on cell quality, but also on how the battery is managed during charging and discharge. The WACTEC battery pack is equipped with an intelligent BMS to improve safety, performance, and lifespan.
These systems help maintain stable performance, reduce overheating risk, and improve consistency over repeated use.
When selecting a battery pack manufacturer, distributors are not just comparing specifications. They are evaluating long-term reliability, supply consistency, and after-sales risk.
Battery issues often lead to returns, complaints, and brand damage. Our goal is to reduce those problems from the beginning through controlled material sourcing, standardized assembly, and battery-level testing.
| Key Factor | Low-Cost Batteries | WACTEC Battery |
| Cell Quality | Mixed / unstable | High-discharge matched cells |
| Output Stability | Voltage drop under load | Stable power delivery |
| BMS | Basic protection only | Intelligent BMS + balancing |
| Heat Control | Poor | Controlled with protection system |
| Cycle Life | 150–200 cycles | ≥300 cycles |
| After-Sales Risk | High | Reduced |
Each 20V lithium battery pack design is validated through practical testing procedures to ensure stable jobsite performance.
These tests help ensure that the cordless tool battery performs reliably in construction sites, workshops, and industrial environments.
This 20V lithium battery pack is suitable for a wide range of professional applications, including:
It is designed for distributors supplying contractors, workshops, hardware stores, and industrial users.
This battery is part of the WACTEC cordless platform and supports multiple tool categories, helping distributors build a more complete and competitive product range.
A unified battery platform improves cross-selling opportunities and reduces inventory complexity for distributors.
We provide flexible OEM battery solution support for clients building their own cordless tool lines.
Q1: What is a 20V lithium battery pack used for?
A: A 20V lithium battery pack is commonly used in cordless power tools such as drills, rotary hammers, and angle grinders.
Q2: Is this battery compatible with other brands?
A: This battery is designed for WACTEC 20V tools. For OEM projects, compatible battery solutions can be discussed based on your requirements.
Q3: What is the typical lifespan of this power tool battery pack?
A: Under normal working conditions, the battery supports over 300 charge cycles while maintaining stable performance.
Q4: Can you customize battery specifications?
A: Yes. We support customization of capacity, housing, labeling, and packaging for private label and OEM projects.
Q5: How do you ensure product consistency?
A: We use standardized production procedures and batch-level testing to improve consistency across large-volume orders.
Choosing the right 20V lithium battery pack is critical if you want to build a competitive cordless product system.
Contact us today for:
Send your inquiry now and start building a more reliable cordless tool platform with WACTEC.
Learn more about lithium-ion battery technology.
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