Important Notice on Korean Market

Power Tools

Our brilliant expertise in power tool batteries and chargers surpasses any other manufacturers on this planet. RHY’s business started with power tool batteries and chargers. Over the past decade, we have been developing and manufacturing replacement batteries and chargers for branded power tools such as Makita, DeWalt, Bosch, Milwaukee, etc., and providing customized battery solutions for combo kits, cordless drills, impact drivers, saws, angle grinders, electric hammers and other power tools. We deeply understand what makes the best power tool battery and what consumers love, giving your power tools a head start over your competitors.


Tailored For Your Applications

RHY’s engineering team takes the time to understand your overall system, then formulates the right battery strategy which is best suited for your requirements. We adopt the right battery chemistry, cell brand, structure, features and program according to your applications.

Excellent Safety & Reliability

Safety is always the first consideration when we make a solution for customers, especially for lithium-ion batteries. Due to the chemical characteristics of lithium-ion battery itself, it is necessary to protect it from overcharge over-discharge, short-circuit, overcurrent and over-temperature to avoid combustion and explosion.

High Performance

Higher energy density, lighter weight, better safety, faster charging, longer battery life, smarter BMS, are our concept and also the trend of the battery industry. With the most advanced battery technology, RHY always delivers the best performance and helps you achieve further breakthroughs in your fields.

International Standards Compliant

Our products are certified by standards like CE, UL, FCC, PSE, KC, RoHS, UN38.3. Our engineers will design and develop products according to the standards specified by you. We can also modify the existing products to meet these standards on your demand.

Battery Solutions
for Power Tools

For products like power tools, inconvenient cords are being phased out and replaced with battery-powered systems with less noise, greater mobility and more compact design.

RHY Battery Solution Brings You:
  • Battery packs with unprecedented strong power at continuous high-rate discharge
  • Longer battery cycle life
  • Fast and safe charging
  • LED battery charge indicator
  • Fireproof, impact-resistant and shock-absorbing plastic structure
  • Smart BMS monitors each individual cell to ensure cell balancing. Built-in protection circuit protects batteries from overcharge, over-discharge, overload and short circuit.
  • Integrated MCU stores the information of battery status and communicates with power tools and chargers.
  • Chargers with air cooling charging technology prevent the battery and charger from overheating during rapid charging, so as to ensure safe charging, improve charging efficiency and optimize battery life.

Contact Us

To start with, please fill out and submit your application information and customization requirements.


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