F E A T U R E
These combined pressures are forcing a re-evaluation of what a viable retrofit solution looks like.
A simpler path forward
Nickel-zinc provides a solution aligned to these realities.
ZincFive’ s NiZn Retrofit Kit is designed as a true drop-in replacement for VRLA systems, fitting within existing cabinet and open rack footprints without requiring enclosure changes, room redesigns, or additional fire protection systems.
The NiZn Retrofit Kit uses a turnkey design to fit a wide range of existing configurations while delivering three times the power density of VRLA, enabling a significant performance upgrade without additional infrastructure.
By enabling right-sized backup power, NiZn retrofits allow operators to deploy only the capacity they need, reducing inefficiency and avoiding the hidden costs of oversized lead-acid systems.
As an aqueous-based chemistry, nickelzinc is non-flammable and eliminates thermal runaway risk at the cell level, simplifying compliance efforts and avoiding the cascading infrastructure changes required for lithium-ion systems.
Pre-assembled, modular NiZn battery trays enable fast, repeatable installations, allowing service providers to execute consistently across sites. The result is a turnkey approach that preserves the speed and predictability operators expect from retrofit projects, within the existing footprint.
Performance, sustainability and economics without tradeoffs
Nickel-zinc delivers three times the power density of VRLA, enabling a more compact footprint and, in some cases, the elimination of entire battery string. This improves space utilisation and lowers total cost of ownership( TCO).
ZincFive solutions are designed to meet EU Battery Regulation requirements, including lifecycle transparency and recyclability standards, aligning with both current compliance obligations and future regulatory direction.
Notably, 100 % of the nickel and zinc used in ZincFive batteries can be recycled for
reuse, supporting circularity while avoiding critical mineral dependencies. Lifecycle analyses demonstrate 25 – 50 % lower greenhouse gas emissions compared to alternative lead and lithium-based chemistry systems.
Lifecycle economics further reinforce the case for nickel-zinc. With a 10-year warranty and up to a 15-year service life, the NiZn Retrofit Kit eliminates the repeated five-toseven-year replacement cycle associated with VRLA. As labour costs increase across Europe, fewer replacement events also significantly reduce operational expenditure and disruption.
For operators managing aging VRLA infrastructure, the question is not only what replaces lead-acid, but what fits the realities of European deployment.
As regulatory pressure increases and retrofit strategies become central to capacity planning, solutions that minimise complexity while improving performance will define the next phase of infrastructure upgrades.
Nickel-zinc enables operators to upgrade chemistry without upgrading infrastructure. �
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