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| # | Title | User Story | Importance | Notes |
|---|---|---|---|---|
| 1 | Protect the supplemental battery | We need to have active protection for the battery. | Must Have | Will probably use a fuse for current and comparators for voltage/temp |
| 2 | Isolation in safe state | By WSC regulations, none of the conductors exiting the energy storage system can provide more than 50mA. | Must Have | We plan on using some relay-based latch with a button to "prime" the battery connection. |
| 3 | Regulate Battery Voltage | The output voltage of the battery pack should be regulated at 12V | Medium | May need buck boost conversion - expensive |
| 4 | Charge the battery | It would be nice if we could keep the battery charged during normal operation. | Medium | May need buck boost conversion if powered by 12V DC-DC - expensive |
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