> ## Documentation Index
> Fetch the complete documentation index at: https://docs.axle.energy/llms.txt
> Use this file to discover all available pages before exploring further.
# Batteries
Axle has integrated with a wide array of domestic and commercial battery systems. We've got a
track record of operating large fleets of batteries in [demand response](https://www.axle.energy/blog/dfs-case-study) and
constraint management.
We're also the only provider of [frequency services to the UK grid](https://www.axle.energy/blog/frequency) using domestic batteries. Notably,
we do this without any additional hardware, utilizing existing cloud APIs to provide swift and stable responses of several MW.
# Integrating with Axle
You can either integrate into the Axle API, or we'll integrate into an existing cloud API.
### Telemetry
We typically gather:
* State of charge (SOC) `%`
* Inverter Power `kW`
* Grid Power `kW`
* Solar Power `kW`
You can push these to our [Asset Readings](../api-reference/data/readings) endpoint.
### Dispatch
You can register for either Delegated Control or Event-based dispatch as described [here](../tutorial/dispatch#types-of-dispatch)
### Telemetry
We typically gather:
* State of charge (SOC) `%`
* Inverter Power `kW`
* Grid Power `kW`
* Solar Power `kW`
We can retrieve these via polling or webhook.
### Dispatch
We have extensive experience integrating with both event-based or schedule-based APIs.
## Next steps
Optimize behind-the-meter batteries
Powerful APIs for advanced integrations