48 V DC power for regional telcos and TowerCos
Big enough that a site outage is a commercial problem, small enough that the OEM account team does not return the call quickly.
The pattern we see
Your installed base spans vendor eras — an Eltek plant here, an Emerson-labelled NetSure there, something Huawei from the last expansion. The labels say companies that have since been renamed or absorbed, the maintenance contract covers some of it, and the parts that fail are exactly the ones nobody can quote. Meanwhile every site visit to measure and top up a battery string costs a truck, a technician and a working window.
What this actually requires
- A single supplier who covers the whole mixed fleet rather than one vendor's slice of it.
- Documented compatibility per site, so a lithium migration is a controlled rollout instead of an experiment.
- A total-cost case built on avoided site visits, not on cycle life — because avoided visits are what the person signing understands.
- Someone who answers in your language at engineering level, including when the answer is 'not yet'.
How we approach it
Sites get ordered by installed base and battery age, not by billing history. An account with forty small sites is worth more attention than one with three large ones, because the migration compounds. From a documented pilot the expansion goes to five sites, then twenty, priced on cumulative volume rather than per order.
A mixed fleet is the normal outcome, not a failure of planning
Between eight and sixty DC plant sites almost always means three vendor eras in the same network: what was installed when the operator started, what was added during the last expansion, and what was bought after a merger or a supplier change. Nobody planned that; it is what happens when infrastructure outlives procurement cycles. It matters here because a single-vendor supplier has to tell you that half your estate is out of scope, while the actual work — reading labels, mapping controller parameters, sourcing across brands — is the same work regardless of whose name is on the shelf.
Sequencing a migration without a capital project
The version that gets approved is rarely the fleet-wide one. It goes: one pilot site chosen because it is not critical, with the old string kept on site for thirty days so the change is reversible and the result is documented. Then replacement on failure, so the spend follows the batteries that were going to be replaced anyway. Then, once two or three site classes have a documented result behind them, a planned migration for the class that costs the most to visit. Each step funds the next, and none of them requires a number that has to survive a board meeting before anything has been proven.
Equipment and guides for this segment
- Vertiv NetSure & Emerson R48 Rectifier Modules
- DC Plant Controllers & Monitoring Units
- 48V LiFePO4 Telecom Lithium Batteries
- Is the Emerson R48-2900U the same as the Vertiv R48-2900U?
- How do I disable temperature compensation on a NetSure controller?
- Can a VRLA string and a lithium string run in parallel during a migration?
Common questions about this family
Our sites are three different brands. Do we need three suppliers?
No — that is the situation this business exists for. The constraint is never the badge on the shelf; it is whether someone can read your labels, map your controller parameters across brands and source the part that actually fits. We are an independent multi-brand supplier, not an authorised distributor of any of them, which is precisely why a mixed estate is not out of scope.
How do we justify a lithium migration without a documented result?
You do not — you produce the result first. One non-critical pilot site, old string retained thirty days, the before and after written down. That document is what gets the next tranche approved, and it costs a fraction of a fleet-wide commitment made on a specification sheet.