# LAB-003 — Truck Battery Disconnect Install Packet

No battery disconnect switch has been purchased or installed yet.
This packet turns the issue into a field-ready purchase / install / validation checklist while preserving what still requires live work.

## Candidate Store Run

- AutoZone — Newport or Claremont
- Advance Auto Parts — Newport or Claremont
- O'Reilly Auto Parts — Newport or Claremont

## Required Items

- battery terminal disconnect switch
- terminal shim/post riser if needed

## Selection Criteria

- Fits the truck battery post without forcing the clamp
- Mounts on the negative battery terminal
- Physically secure once tightened
- no special tools required to operate

## Live Purchase State

- Store selected: pending
- Part selected: pending
- Part cost: pending purchase

## Installation Target

- Install location: negative battery terminal
- Ready to operate without tools: yes

## Install Checklist

- [ ] Verify the truck is off and keys are removed before touching the battery
- [ ] Confirm the disconnect fits the negative battery terminal before final tightening
- [ ] Install the disconnect on the negative battery terminal
- [ ] Tighten until physically secure with no terminal wobble
- [ ] Verify the disconnect can be opened and closed by hand

## Validation Checklist

- [ ] Leave the truck parked with the disconnect opened for at least 24 hours
- [ ] Reconnect the switch by hand the next day
- [ ] Truck starts reliably after sitting 24+ hours with switch disconnected
- [ ] Receipt or photo of installed switch uploaded to this issue

## Overnight Verification Log

- Install completed: False
- Physically secure: False
- Overnight disconnect duration: pending
- Truck started after disconnect: pending
- Receipt / photo path: pending

## Battery Replacement Fallback

If the truck still fails the overnight test after the disconnect install, replace battery and re-run the 24-hour validation.

## Missing Live Fields

- store_selected
- part_name
- install_completed
- physically_secure
- overnight_test_hours
- truck_started_after_disconnect
- receipt_or_photo_path

## Honest next step

Buy the disconnect switch, install it on the negative battery terminal, leave the truck disconnected for 24+ hours, and only close the issue after receipt/photo evidence and the overnight start result are attached.