21.6V High-Drain Lithium Battery Pack for Professional Power Tools & Equipment
Direct Answer: GeB Power’s 21.6V rechargeable lithium-ion battery pack is a 6-series (6S) high-drain power solution engineered for heavy-duty cordless tools and industrial equipment requiring elevated operating voltages. Built with high-discharge cylindrical cells and a precision BMS circuit, the 21.6V pack delivers sustained high torque and superior thermal stability under continuous heavy loads.

1. 21.6V Battery Pack Technical Specifications
Direct Answer: Operating at a 21.6V nominal potential ($6 \times 3.6\text{V}$), this 6S architecture powers industrial equipment that demands higher working wattage than standard 18V packs.
| Specification Parameter | Technical Data | Application Details |
|---|---|---|
| Nominal Voltage | 21.6V DC | 6 cells in series ($6 \times 3.6\text{V} = 21.6\text{V}$) |
| Fully Charged Peak Voltage | 25.2V DC | 4.2V per cell at end of charge cycle |
| Rated Capacity Options | 2.5Ah (54 Wh) / 4.0Ah (86.4 Wh) / 5.0Ah (108 Wh) | High-drain 18650 or 21700 cell formats |
| Continuous Discharge Rate | 25A – 35A Continuous | Maintains high power output without overheating |
| Operating Temperature | -20°C to +60°C (Discharge) | All-weather jobsite reliability |
| Certifications | CE, RoHS, UN38.3, MSDS | Fully certified for air, sea, and courier freight |
2. Frequently Asked Questions (FAQ)
Q1: What tools typically utilize 21.6V battery platforms?
21.6V architectures are widely adopted in professional cordless vacuum cleaners, robotic sweepers, heavy-duty rotary hammers, and high-pressure hydraulic crimpers.
Q2: Can GeB customize the terminal interface for our machinery?
Yes, we offer custom terminal pin design, wire harnesses, casing molds, and communication protocols (SMBus, I2C, CAN-bus) for specialized OEM machinery.
Technical references: Learn more about battery safety standards at Battery University and UL Standards.
Looking for Reliable OEM/ODM Replacement Batteries for Your Tool Fleet?
As a professional lithium-ion battery manufacturer with over 16 years of engineering experience, GeB Power (General Electronics Technology Co., Ltd.) provides high-grade, direct-fit replacement battery packs and custom battery solutions for power tool distributors, fleet contractors, and equipment brands worldwide.
- Tier-1 High-Drain Cells: Premium 18650 and 21700 lithium cells for maximum discharge rate and prolonged runtime.
- Intelligent BMS Protection: Multi-layer circuitry preventing overcharge, over-discharge, short circuit, and thermal runaway.
- Global Certifications: Fully certified to CE, UL 2054, UN38.3, RoHS, and MSDS transport standards.
- Flexible MOQ & Fast Prototyping: Customized housing colors, labeling, private labeling (OEM), and fast-turnaround sampling.
Get a factory-direct quote or request evaluation samples today: Send your required voltage, capacity, tool models, and estimated order quantity to our engineering team at info@gebattery.co or submit your inquiry via our Request a Quote page.
