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Power & battery β€” adapters, cells, safety

Track: Build your own laptop Β· Duration: 28 min

Video lesson

Videos stream from YouTube. To use your own uploads, host on YouTube (or another embed-capable host) and set video_embed per lesson or edit defaults in academy-laptop-track.php / Academy Admin.

Course reader

Power & battery β€” adapters, cells, safety

Laptop workbook β€” parts, assembly, firmware, and troubleshooting next to the video.

Adapters

  • Match voltage and sufficient wattage (GPU boost pulls spikes).
  • USB‑C PD needs a profile that meets peak system draw β€” undersized chargers throttle performance.

Batteries

  • Prefer vendor-shaped replacement packs from reputable sources when possible.
  • Rebuilding packs from loose 18650s involves spot welding and BMS knowledge β€” high risk; not covered as a beginner project.

More tutorials: Open video search on YouTube

Lesson quiz

Each attempt uses a random set of questions with shuffled answer choices. Pass at 70% or higher to mark the lesson complete.

Draw a new random quiz

1. Repacking lithium cells without expertise is:
2. A replacement AC adapter should match:
3. USB‑C PD chargers that are β€œtoo small” may:

Your Progress

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