1. Client Background & Challenges

Our client is a leading European manufacturer of professional-grade cordless power tools, specializing in high-torque screwdrivers and impact drills for the construction, renovation, and maintenance industries. They faced a unique set of challenges:

Extreme Safety Requirements: Construction sites are demanding environments. The battery must be utterly safe, with absolute prevention of fire or explosion risks from impact, drop, or short circuit.

Broad Operating Temperature Range: Tools must start and perform reliably in various conditions, from cold storage units (-10℃) to hot outdoor worksites (45℃).

High Reliability & Durability: Professional tools are essential for users' livelihoods. The battery must withstand frequent use, high-current discharge, and constant vibration without failure.

Cost-Efficiency: The solution needed to meet all performance demands while maintaining a competitive total cost of ownership.

2. Why a Nickel-Metal Hydride (Ni-MH) Solution?

For this application, Ni-MH batteries offered distinct and irreplaceable advantages over lithium-based alternatives:

Ultimate Safety: The aqueous electrolyte in Ni-MH batteries is inherently stable. They offer superior tolerance to over-charge and over-discharge and are virtually immune to fire or explosion under abusive conditions, directly addressing critical safety concerns on the job site.

Excellent Low-Temperature Performance: Ni-MH batteries typically maintain better capacity and discharge performance than standard lithium-ion batteries at temperatures as low as -20°C, ensuring tools start reliably in cold weather.

Robustness: The simpler battery pack construction, without the need for a complex Battery Management System (BMS) board, offers higher physical reliability and better resistance to vibration and impact.

Cost-Effectiveness: The solution provided an optimal balance of performance, safety, and total cost.

3. Our Customized Solution

We delivered a tailored 14.4V 3000mAh Ni-MH Battery Pack:

Cell Selection & Matching: Utilized top-tier, low-self-discharge, high-rate Ni-MH cells to ensure readiness after storage and support the high-current demands of power tools.

Intelligent Charging Management: Integrated an intelligent charging identification chip and a Thermistor (NTC). The chip communicates with the OEM charger to enable precise cutoff charging, preventing overcharging. The NTC provides real-time temperature monitoring for safe charging operation.

Industrial-Grade Mechanical Design: Housed in a high-strength, impact-resistant PC+ABS flame-retardant case. Internally, cells were connected with laser-welded nickel strips and secured with insulating brackets, followed by potting to ensure shock and vibration resistance.

4. Product Specifications

5. Other Potential Applications

This reliable 14.4V 3000mAh Ni-MH Battery Pack is also ideal for:

High-End Cordless Cleaning Appliances: Vacuum cleaners, scrubbers (where safety and low noise are prioritized).

Professional Gardening Tools: Hedge trimmers, lawn mowers (high-vibration, harsh environments).

Backup Power for Medical Devices: Hospital beds, wheelchairs (absolute safety-critical).

Specialty Lighting Equipment: Emergency lights, searchlights (wide-temperature operation).

If you are developing a device that demands safe, durable, and cost-effective battery performance, our Ni-MH solutions may be your ideal answer, contact our team today to find the perfect power heart for your application!