# Battery [`Battery` definition in nRF Asset Tracker cloud protocol](https://github.com/NordicSemiconductor/asset-tracker-cloud-docs/blob/v31.0.0/docs/cloud-protocol/Reported.ts#L90) ## LwM2M data mapping | Field | LwM2M | | ----- | --------- | | `v` | `/3/0/7` | | `ts` | `/3/0/13` |