Custom Battery Packs with Proven PerformanceEngineering Energy for Advanced ApplicationsPower up with Resistacap Energy Products

Trusted battery solutions tailored for your industry.

why resistacap?

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Our Mission

For over 40 years, original equipment manufacturers have relied on Resistacap for dependable, high-performance battery packs designed to meet the toughest technical challenges. From new product introductions to high-volume production, we work within your timeline and budget—delivering solutions that are on time, on spec, and ready for the market.

Our in-house engineering and custom battery design capabilities reduce lead times and accelerate product development. Whether you’re prototyping early, or scaling for production, Resistacap provides the custom energy solutions that today’s advanced technologies demand.

We proudly serve a wide range of industries—delivering complex battery applications that power innovation across Medical, Handheld electronics, Safety/Security, Military/Aerospace, Sensors/Trackers, Robotics, Industrial, Utilities and more.

ISO 9001 and ISO 13485 certified

Ready to Power your next project??

Let’s build a custom battery Solution tailored to your application.

Market Segments

Powering a variety of  devices across industries

From medical equipment to aerospace systems, our custom battery solutions support innovation and performance where it matters most. We specialize in engineering reliable energy solutions for complex applications—delivering trusted power across healthcare, security, defense, robotics, utilities, and beyond.

Medical

Infusion pumps, respirators, defibrillators, surgical tools, patient monitoring devices, and motorized beds/carts.

Handheld Electronics

Portable data terminals, measurement devices, data collection devices, gas detection systems, and image capture devices.

Safety/Security

Night vision cameras, surveillance equipment, thermal imaging devices, wearable gas detection systems, respirators, and personal alarms.

Military & Aerospace

Serving both government and commercial customers, we support a wide range of emergency beacon applications- on land, at sea, and in the air.

Sensors/Trackers

Supporting water filtration systems, air quality monitors, smart agriculture sensors, logistics tracking devices, industrial monitoring tools, and environmental detection equipment.

Robotics

Powering AI robotics, autonomous machines, humanoid systems, and advanced automation for industrial, research, commercial, and educational applications.

Utilities

Handheld and fixed water quality monitoring systems, designed for municipal and infrastructure applications.

Supporting Brands

Trusted by leading battery manufacturers to deliver reliable performance and proven power solutions.

Reviews.

Hear what our clients have to say about working with Resistacap and the results we've delivered.

Rating 5.0 / 5.0

Resistacap delivered exactly what we needed—a compact, high-performance battery solution for our portable monitors. Their engineering team worked closely with ours, hitting every milestone on time and on spec. It’s rare to find that level of partnership and precision.

VP of Product Development

Medical Device Manufacturer

We’ve worked with several battery suppliers over the years, and none have matched Resistacap’s reliability or responsiveness. Their custom packs have been a game-changer for our robotics units in terms of durability and runtime.

Director of Engineering

Industrial Robotics Firm

Resistacap’s ability to meet strict compliance standards and deliver rugged, field-ready battery packs has made them a key supplier for our aerospace applications. They truly understand the demands of our industry.

Procurement Lead

Defense Contractor