Lithium batteries and storage for data centres and IT infrastructure
The problem
One second without power on a rack costs you the SLA and the data.
What we install
Lithium batteries 384–614 V for the UPS, storage to absorb AI-load surges, monitoring of every cell.
- 6C batteries for short discharges
- Storage 100–1000 kW
- BMS with life diagnostics
Context
What drives the equipment selection
A data-centre battery lives in a very particular regime: it sits on standby almost all the time and discharges rarely — but when it does, it delivers high current for a short window, typically 7–20 minutes until the gensets take the load. That dictates high-rate designs at 5–6C and a battery bus of 384–614 V.
The second factor is floor space. A battery room competes with racks, and racks earn money. A lithium string takes roughly a third of the space and needs no separately ventilated room for hydrogen, so the move away from lead is often justified by reclaimed floor area rather than by maintenance savings.
The third is that the load itself has changed. AI racks produce steep power surges that the grid and on-site generation are not always ready for. Here a storage system is added alongside the UPS battery — for smoothing, not for backup.
What we need for a calculation
- UPS model and rating, voltage class of the battery bus
- Required autonomy and the load profile
- What is installed today: type, age and condition of the battery strings
- Temperature regime and space constraints in the hall
Suitable equipment
How we work
Engineering audit
We go through the specification and the site: load category, required autonomy, operating conditions, what is already installed.
Sizing and selection
We size the battery against the real discharge profile — not “with a margin, by eye”. You get 2–3 options with different economics.
Supply and commissioning
Delivery from stock or to order, installation, commissioning, training for your operations team.
Service and monitoring
Warranty and post-warranty service, remote condition monitoring, replacements scheduled on actual condition.
Q & A
Frequently asked questions
Can a lead string be replaced in a live data centre without downtime?
As a rule yes — the work is planned per power path and per UPS section, with temporary redundancy in place. The sequence and schedule are agreed with your operations team during the audit.
How does battery monitoring connect to the DCIM system?
The BMS publishes data over Modbus TCP or SNMP into your existing monitoring system. No cloud is required — the loop stays inside your perimeter.
First step
Site energy audit — free of charge
Send us the data from the checklist above — we will return a calculation with layout options, dimensions and site requirements. Usually 3–10 working days.