SUNJ provides a combined power solution of ER battery and EPC battery capacitor, which can meet the needs of high pulse discharge while maintaining the characteristics of large capacity of the battery, in addition, 3.6V lithium ion battery pack can effectively reduce the lag of lithium sub-battery discharge and improve battery performance.
As a professional battery storage solutions provider, SUNJ Energy's primary pouch cells are mainly divided into four categories: Li-SOCL2 Battery, Li-MnO2 Battery, Battery Capacitor, Li-SO2 Battery, we are committed to providing customers with variety of customized battery pack services. Whether you need primary lithium battery or a complex primary lithium battery pack solution, our technical team will work with you to determine the best battery solution after understanding your usage scenario.
SUNJ’s Combined Power Solutions are engineered for industrial customers who require both long-lasting energy and strong pulse output in a single system. Our ER battery + EPC capacitor hybrid structure combines the high energy density of ER lithium cells with the instant power delivery of EPC capacitors, forming a high pulse discharge battery ideal for smart IoT devices, utility meters, GPS tracking units, and industrial monitoring systems.
Built around a stable 3.6V lithium battery pack, these hybrid battery capacitor solutions ensure consistent voltage, reduced discharge lag, and reliable performance under high-current bursts. As a UN38.3 certified battery supplier with strong engineering experience, SUNJ delivers hybrid packs that meet strict global standards and are suitable for harsh-field applications.
We provide multiple standardized hybrid models—ER18505H + EPC1520, ER26500H + EPC1520, ER34615H + EPC1550—each designed for long-term deployments where low background current and repeated pulse requirements coexist. These models are widely used as utility metering battery packs, IoT battery solutions, GPS tracking battery packs, and power sources for remote sensing, oil & gas instrumentation, and marine devices.
For brands requiring a tailored approach, SUNJ offers custom battery pack services, battery pack design services, and full OEM battery pack solutions. Our engineering team supports bespoke battery pack design, including connector customization, structure optimization, capacity matching, and pulse-current testing, ensuring the hybrid solution precisely matches your device’s power profile. If needed, UL-compliant configurations and UL certified battery pack development can be provided.
· High pulse capability + long capacity: instant response for short bursts without sacrificing total energy.
· 3.6V lithium battery pack: reduced discharge lag for faster, more reliable device response.
· Custom design & OEM support: prototyping, datasheets, and production-scale supply.
· Field-proven across industries: smart meters, IoT, tracking, oil & gas and maritime safety.
Ready to match a pack to your product? Download the datasheet or Get in Touch — share your usage profile and our engineers will recommend the ideal hybrid configuration.