
About the APC Battery Project
The APC battery is a compact, modular 12-volt battery system developed by Cayrex, designed as a direct replacement for conventional lead-acid batteries. Built on the foundation of Cayrex’s proprietary Hyperflow technology, the APC battery delivers good performance while maintaining the familiar form factor that industry and consumers rely on. The APC battery is strategically positioned between lead-acid and lithium batteries — offering significantly better cycle life, safety, and upgradability than lead-acid systems, at a price point currently comparable to AGM lead-acid batteries.
Unlike conventional batteries where the entire unit must be replaced when performance degrades, the APC battery can be upgraded or refreshed simply by replacing the electrolyte — a concept inherited from the Hyperflow platform that makes it uniquely future-proof. The APC battery comes with a zinc-bromine (Zn-Br) based electrolyte as its default chemistry. However, because it inherits the Hyperflow platform’s universal cell architecture, users can opt for alternative zinc-based chemistries — including Zn-Mn, Zn-I, and Zn-Fe — based on their specific requirements, without any modifications to the battery hardware.
The APC battery is designed to accommodate two distinct cell architectures, allowing customers to choose the configuration that best matches their application requirements, performance needs, and budget.
NCD — Neutral Cell Design Architecture
The NCD architecture represents the simpler, more cost-effective approach. Cells are constructed with minimal components, making them extremely easy to manufacture and recycle. Any upgrade or chemistry change is accomplished purely by replacing the electrolyte — no cell modifications needed.
FCD — Fixed Cell Design Architecture
The FCD architecture delivers higher capacity and power output than NCD. Upgrades are performed by replacing the cells themselves rather than just the electrolyte, offering greater performance potential at the cost of slightly more complex manufacturing.
The Hyperflow APC battery thus supports a wide range of applications and is suitable for almost any use where lead-acid batteries are currently used — Suitable for a wide range of applications — from small to medium-sized energy storage systems, emergency and backup power, telecom and UPS infrastructure, to mobile solutions including marine, automotive, and DIY energy projects.



Demonstration of expanding the APC battery from 12 volt to 24 volts
