> For the complete documentation index, see [llms.txt](https://irnas.gitbook.io/opencollar/-MDJCI9OmpOqWrQzjNIR/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://irnas.gitbook.io/opencollar/-MDJCI9OmpOqWrQzjNIR/hardware/implantedge-battery.md).

# ImplantEdge Battery

The following batteries from manufacturer Fanso have been identified as suitable candidates due to dimensions and capacity for implant operation.

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![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAfxKpHe9the60UYjxl%2Fuploads%2FCvbwatG9Zv2DP2eR9hAY%2FIMG_20211206_080008.jpg?alt=media\&token=da9dfca1-e284-4636-bcd4-70c5e4efdc9f)

#### Discharge tests

Both battery types have been discharged with a constant load profile for accelerated testing of 50mA for 30s and 1m for 10s. While this is not a realistic case, it should represent the harshest use-case with GPS.

The larger battery has been also tested in 2P configuration, to determine the impact of parallel connection in capacity improvement.

| Cell        | Nominal               | Actual                 |
| ----------- | --------------------- | ---------------------- |
| CP502440    | 1.2 Ah                | 0.98 Ah                |
| CP502440 2P | 2.4 Ah  (1.2 Ah/cell) | 2.11 Ah (1.05 Ah/cell) |
| CP252545    | 0.75 Ah               | 0.74 Ah                |

![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAfxKpHe9the60UYjxl%2Fuploads%2FT4RUiLMCTeRYqWoHkpI4%2Ffanso-2p-cp502440.png?alt=media\&token=df5a2cfb-a7ab-4f88-8a93-058dffcec9c3) ![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAfxKpHe9the60UYjxl%2Fuploads%2FpDjfrVGkaCzfqlIC1eiZ%2Ffanso-cp502440.png?alt=media\&token=743640fd-468e-4b7d-84c1-6660127282b0) ![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAfxKpHe9the60UYjxl%2Fuploads%2F4JpgrE8XgkfzpNMTa4d8%2Ffanso-cp352545.png?alt=media\&token=ef44c90e-61e2-4d7e-a583-5a39870d4af0)