Industry
Data Centre Battery Monitoring
In a data centre, the battery estate is simultaneously the last line of defence for uptime and one of the few concentrated fire risks inside the building envelope. Both facts argue for knowing the chemical state of every string continuously.
Battery Sense provides embedded and standalone gas sensing across UPS cabinets, lithium BESS and shared colocation racks, with alarms that identify the specific cabinet rather than the room.
The data centre battery risk profile
Modern facilities run a mix: legacy VRLA strings that evolve hydrogen during charging, and lithium-ion UPS and BESS cabinets that off-gas only when something is wrong. Distinguishing the two is a genuine detection challenge and a common source of nuisance alarms.
Multi-species measurement resolves it. Lead-acid charging produces hydrogen without electrolyte VOCs; a lithium vent produces both. Requiring the combined signature before escalation keeps sensitivity high and false alarms low in mixed rooms.
The cost asymmetry is severe. An unnecessary shutdown is expensive; an undetected battery fire in a white space is catastrophic. Precision matters more here than in almost any other application.
Colocation and shared-rack monitoring
Colocation adds a commercial dimension: the operator is responsible for a facility containing battery assets they may not own or control. Per-rack chemical monitoring provides objective evidence about which tenant's equipment is degrading, which supports both intervention and contractual clarity.
Battery Sense nodes are explicitly designed for colocation and shared rack battery monitoring, with QR-based placement mapping so a large estate can be commissioned and audited node by node.
Deployment without downtime
Retrofit into a live facility cannot require de-energising strings. Standalone units mount with peel-and-stick, magnetic, DIN rail or junction-box fixings inside cabinets and on rack frames, powered from 12/24 V for RS-485 installations or 2.7–30 V for equipment-integrated deployments, and consume under 0.05 W on average.
Integration paths cover existing infrastructure: dry contacts into the BMS/EPMS alarm scheme, Modbus RTU over RS-485 into the building management system, 4–20 mA where analogue loops already exist, and wireless where cable routes are frozen.
| Asset | Chemistry | What to detect | Node placement |
|---|---|---|---|
| Lithium UPS cabinet | LFP / NMC | H₂ + electrolyte VOC, CO | Inside cabinet, per shelf or module |
| VRLA string | Lead-acid | H₂ accumulation vs charging baseline | Above string, per row |
| Lithium BESS | LFP | H₂ + VOC at rack | Per rack, plus room unit |
| Colocation shared rack | Mixed | Per-tenant attribution | Per rack, QR-mapped |
Uptime, maintenance and evidence
Beyond fire risk, chemical data supports availability. A string generating gas is a string that will fail its next load test; catching it early converts an unplanned outage into a scheduled replacement.
The record also matters commercially. Continuous SOS data provides evidence for insurers, for tenant SLAs and for warranty claims against battery suppliers.
Frequently asked questions
Why do data centres need battery gas detection if they already have smoke detection?
Smoke detection, including aspirating systems, responds to particulate produced after a cell has vented and begun to combust. Gas detection responds to electrolyte decomposition before that point, which is the difference between an isolated string and an incident in the white space.
How do you avoid false alarms in rooms with lead-acid batteries?
Lead-acid charging evolves hydrogen without lithium electrolyte VOCs. Requiring a combined hydrogen plus electrolyte VOC signature before escalation distinguishes normal charging behaviour from a lithium vent event.
Can sensors be installed without taking UPS strings offline?
Yes. Standalone units mount externally to cabinets and racks with adhesive, magnetic, DIN rail or junction-box fixings and are powered independently or from auxiliary supplies, so no string de-energisation is required.
Does this help with colocation tenant disputes?
Per-rack, QR-mapped chemical monitoring produces objective, time-stamped evidence of which asset degraded and when, which supports intervention decisions and contractual attribution.
Put molecular detection on your battery assets
Send us your chemistry, enclosure and comms constraints. Our engineers will map BD-100 placement at cell, module or rack level and model the detection window you gain.
Related reading
UPS Battery Rooms
Mixed chemistry rooms and ventilation.
Battery Monitoring
Monitoring architecture from cell to site.
Battery Gas Detection
Thresholds, false alarms, integration.
BESS Monitoring
Grid-scale and behind-the-meter storage.
Battery Fire Prevention
Staged response and suppression logic.
BD-100 Battery Sensor
Specification and datasheet download.
Battery safety intelligence, monthly
Incident analysis, off-gassing research, standards updates (NFPA 855, UL 9540A, IEC 62485-2) and field data from live BESS, UPS and residential deployments. No marketing filler.