Breathe Charge

Adaptive charging software. Real-time performance.

Delivering better battery powered experiences for class-leading clients

Breathe Charge is embedded adaptive charging software that is faster, more flexible and more cost effective to implement than traditional ways of developing charge control.
Operating in real-time and on device, Breathe Charge enhances charge performance with nothing but software. No hardware changes needed.
Extremely lightweight, Breathe Charge introduces physics-based estimation into your existing compute and memory budget.

Unlock fast charge performance

EVs compete on range, charging time, and cost.

Across 147 production EVs, vehicles with similar battery capacity deliver dramatically different fast-charging results.

The Volvo EX60, equipped with Breathe Charge, delivers:

800 km range
16-minute 10-80% charging
Among the highest range added in 10 minutes in its segment

Achieved without increasing pack size or cost.

The difference is control.

Breathe Charge is a software-only control layer that replaces conservative lookup tables with real-time electrochemical margin control. It unlocks more performance from the battery hardware already in the vehicle.

In series production on Volvo EX60.

Assess performance on your platform

“No more range anxiety. And it also charges when it’s cold outside. This is made possible by our 800V architecture and clever charging algorithm from our portfolio company Breathe. Setting a new standard for our competition.”

Anders Bell, Chief Engineering & Technology Officer – Volvo Cars at EX60 Global Launch Event.

Hardware sets limits. Software navigates margins.

To increase range, OEMs increase energy density.

That narrows electrochemical margins during fast charging.

Lookup tables are calibrated conservatively to protect durability. Push them harder and plating risk increases. Hold them back and the vehicle falls behind on charging performance.

The chart shows the trade-off:

Defensive tables underutilise the cell.
Aggressive tables cross the margin as the battery ages.
With Breathe Charge, the defined margin is maintained across life.

Precise margin control enables higher charging current within safe limits.

At vehicle level, that means faster charging and more range added, without increasing hardware cost

Closed-loop margin control

Breathe Charge replaces static lookup tables with real-time electrochemical control.

Using existing pack signals, the embedded physics-based estimator calculates internal states including anode potential once per second.

Estimate

Physics-based estimation of anode potential and electrode overpotential, second-by-second.

Control

Closed-loop control of the charging current to actively manage battery states in real-time.

Adapt

Inherently adaptive to battery health, cell-to-cell variability, operating conditions, and degradation pathways. No parameter updates needed.

This is how Breathe Charge maintains the margin shown in the previous section — while safely enabling higher charging current.

No new sensors. No change to the safety architecture.

Production-ready

Computationally lightweight

Breathe Charge embedded software is delivered as a statically-linked compiled library, which is easy to integrate into your battery management system. Our PHI X2 physics-based model architecture is incredibly computationally light, making it easy to integrate within your existing computation and memory budgets.

Example memory requirements for an automotive pack-level integration of 160 instances are 35 kB of RAM, statically allocated, 40 kB of ROM (program memory) and 0.5 kB of NVM (non-volatile memory).

Compatible with your existing hardware

For automotive applications, Breathe Charge is delivered as AUTOSAR-compliant embedded software, compatible with automotive BMS ECU microprocessors.

For consumer electronics and power tools applications, it is delivered as a compiled, statically-linked C-library compatible with all common 32/64-bit CPU architectures. It works with any fuel gauge/charger ICs, including successful integrations with TI BQZ40z50-R3 and Analog Devices MAX17262.

Quality and standards assured

We pride ourselves on building software according to rigorous automotive quality standards, such as ASPICE level 2, and are committed to providing quality products and continuous improvement.

Enjoy peace of mind knowing you’ll get value for money and high-quality results – on-time and with low risk – through an ISO-certified environment with ISO 9001 (quality management) and ISO 27001 (data security).

Vehicle performance that wins buying decisions.

With Breathe Charge, OEMs unlock measurable fast-charge gains from existing battery hardware.

More range added in 10 minutes
Faster 10–80% charging
Stable performance across ageing
Greater utilisation of high-energy cells

In production on the Volvo ES90, closed-loop margin control delivered:

38% more range added in ten minutes
30% faster 10–80% charging

With no compromise to durability.

The result is not a laboratory improvement.
It is a vehicle-level shift in competitive positioning.

In a market where customers expect 500 km range and sub-20-minute charging, incremental gains are not cosmetic. They directly influence purchase decisions.

Breathe Charge turns electrochemical insight into a commercial advantage.