Articles
Repair guides, digital service explainers and a few notes. Every reference is cited.

Swollen Lithium Battery? How to Spot It, Handle It and Recycle It
Lithium batteries in robot vacuums, drones and RC toys can swell with age. How to tell, what to do first, what never to do, and how to recycle safely — with sources at the end.

Swollen Lithium Battery? How to Spot It, Handle It and Recycle It
Lithium batteries in robot vacuums, drones and RC toys can swell with age. How to tell, what to do first, what never to do, and how to recycle safely — with sources at the end.

Robot Vacuum Can't Find Its Dock? Troubleshoot in This Order
Most docking failures come down to dock placement, the starting position, sensors or the charging contacts. Based on Roborock and ECOVACS official help docs, here's a troubleshooting order from easiest to hardest.

Troubleshooting Servo Jitter: 6 Checkpoints from Power to Mechanics
Servo buzzing, twitching back and forth, or resetting your board whenever it moves? Based on tutorials from Arduino, SparkFun and Adafruit, check power, common ground, capacitors, signal, load and internal parts — in that order.

Choosing Servo Gears: Materials, Matching Models and Replacement Tips
Plastic and metal gears each have trade-offs, and mismatched models or versions are the most common pitfall when replacing gears. Drawing on SparkFun's tutorial and TowerPro's official specs, here's how to choose, how to replace, and when it isn't worth it.

A Starter Repair Toolkit: What to Buy First and How to Stay Safe
You don't need everything at once. A starter list in five groups — disassembly, measurement, soldering, cleaning and protection — plus safety notes and sources on solder fumes, static and lithium batteries.

Overseas Digital Services: Avoiding Pitfalls with Regions, Gift Cards and Account Security
Gift card won't redeem, can't change your region, or someone asks you to “pay with gift cards”? Based on official help pages from Apple, Google Play, Steam and PlayStation, here are the most common pitfalls and a pre-order checklist.

Hello, this is Mechoz Lab
What this site is, what you'll find here, and how the articles are written — sources are cited, AI images are labeled, and mistakes get fixed.