Custom Battery Pack Design
Precision-Engineered Battery Packs Backed by 40+ Years of Expertise
At ResistaCap, we bring over 40 years of battery engineering and product design experience to your application. As a trusted partner to OEMs across a wide range of industries, we specialize in the design and assembly of high-quality, dependable custom battery packs engineered for performance, precision, and safety. Product safety is at the core of every solution we deliver, and our customers benefit from expert guidance, thorough testing, and compliance with today’s most rigorous standards.

Why Choose ResistaCap for Custom Battery Pack Design?
Integration
Our custom battery packs are engineered to integrate seamlessly with your product’s electrical and mechanical systems. From protective circuitry and electronic safety devices to indicator lights and thermal management components, we design complete energy systems that enhance both functionality and safety.
Precision
Each ResistaCap battery pack is built to deliver precise voltage, current, and capacity—ensuring optimal performance for your specific application. This level of accuracy results in longer runtimes, greater reliability, and enhanced user experience.
Reliability
We use welded cell connections to provide long-lasting structural integrity and consistent performance. Unlike spring contacts, which degrade over time, our battery packs are built for durability and eliminate the risk of improper user replacement, helping to maintain product satisfaction and reduce service issues.
Safety
With increasing demands for safety and compliance, our team works closely with you to determine the best design parameters and safety features. We ensure that every battery pack meets or exceeds industry standards, providing peace of mind for both you and your customers.
Our Custom Battery Pack Design Process
Every application has different power, space, performance and safety requirements. ResistaCap works with OEM customers to develop custom battery packs engineered around the specific requirements of their products.
From initial concept and battery selection through engineering, prototyping, assembly and testing, our team helps develop a dependable battery solution designed for performance, safety and manufacturability.
We consider critical factors including voltage, capacity, physical dimensions, operating environment, protective circuitry, thermal management, connection requirements and applicable safety standards throughout the design process.
1. Application Review
We evaluate your product, power requirements, operating environment and design constraints.
2. Engineering & Design
Our team develops a battery pack configuration based on your electrical, mechanical and safety requirements.
3. Prototype & Testing
The battery solution is evaluated for performance, integration, reliability and safety.
4. Production & Assembly
Once approved, ResistaCap provides dependable battery pack assembly with strict quality control.
Built for Performance. Backed by Precision.
As a mid-sized company with large-scale capabilities, ResistaCap delivers advanced technology, responsive support, and quality assurance you need without compromising speed or cost.
Our short lead times, meticulous attention to detail, and strict quality control standards help you bring products to market faster and more cost-effectively.

















