What does Battery Sense detect?

Battery Sense measures hydrogen, lithium electrolyte VOCs (DMC, DEC, EMC) and carbon monoxide released by degrading lithium-ion cells, from 10 ppm hydrogen at the cell, module or rack — before smoke, heat or voltage anomalies appear.

How early is the warning?

Detection occurs during off-gassing and at first vent, typically minutes to hours ahead of thermal or smoke-based detection depending on chemistry, state of charge and failure mode.

Where can the sensor be installed?

As an embeddable gas analysis chip integrated onto the battery package, or as a standalone monitoring unit using peel-and-stick, DIN rail, junction box, wall, magnetic or CAN-connected mounting.

Which standards does it support?

Deployments under IFC, NFPA 1, NFPA 2, NFPA 855, OSHA 1910 and IEC 62485-2, while detecting far below the concentrations those frameworks address.

Pre-smoke · Molecular battery intelligence

Catch battery failure before it takes your energy storage down.

Battery Sense brings real-time chemical intelligence directly to the battery cell, module or pack. We measure hydrogen and electrolyte off-gas composition alongside temperature and voltage, detecting early degradation and first vent events long before conventional monitoring reacts.

Book a demo Download BD-100 datasheet Read the off-gassing guide

10 ppm: Hydrogen limit of detection
<0.05 W: Average power — no heater
0–50,000 ppm: Measurement range
10 years: Unit warranty

Utility-scale Battery Energy Storage System (BESS) installation at sunset — large grid of lithium-ion battery enclosures with power substation and mountains in the background

Detect abnormalities

Continuous molecular measurement of H₂, electrolyte VOCs and CO at the cell, module and rack — from 10 ppm, with no dependence on how fast the gas builds up.

Determine degradation

Correlate gas signatures with thermal, impedance and duty history to identify where degradation starts and how it will progress.

Disconnect power

Drive graded response through dry contacts, Modbus, CAN or 4–20 mA: derate, isolate, ventilate, pre-arm suppression on the exact zone.

Cells announce failure. We listen to the right signal.

Existing systems alarm only after gases accumulate, providing no early warning and no rack-level localisation. Hydrogen and VOC off-gassing starts at the cell — minutes to hours before violent eruption.

Battery Sense off-gassing timeline: molecular detection of hydrogen and electrolyte VOCs occurs at first vent — minutes to hours before smoke, temperature rise or thermal runaway.

Signal onset comparison: hydrogen concentration departs baseline while temperature and voltage remain within normal operating tolerance.

Battery safety knowledge base

Engineering references on off-gassing, gas detection, thermal runaway and state of safety — written by the team building the sensors.

Battery Off-Gassing

The complete engineering guide: gas species, first vent, detection thresholds, placement and standards.

Thermal Runaway Detection

How runaway initiates and propagates, and which detection layer still allows intervention.

Battery State of Safety

A live risk index built from molecular, thermal, electrical and contextual data.

Hydrogen Sensor for Batteries

Sensing principles, selectivity against CH₄ and CO, humidity stability and placement.

Battery Gas Detection

Architectures, alarm thresholds, false-alarm control and control-system integration.

Battery Monitoring

From cell to container: what to measure, where, and how it reaches your BMS or EMS.

Detection at every level of the asset

Detection hierarchy: embedded cell-level gas sensing localises the first venting cell, then aggregates to module, rack and container-level battery state of safety.

BESS & utility-scale storage Data centres & colocation UPS battery rooms Residential & home storage

Pilot & co-development

Certified on site at an ENGIE plant

A custom anti-poison membrane was formulated for ENGIE's specific gas environment, the chemiresistor chip was integrated into their existing hardware with no rip-and-replace, and calibration ran against real process gases from the facility — with final certification conducted under live operating conditions at 15 ppm.

Read the case study

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.