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ノートパソコンのバッテリー状態を確認する方法：劣化と残量を見分ける
Windowsのbattery report、メーカー診断、macOSの標準機能でバッテリー状態を確認する手順と、修理相談が必要なサインを解説します。
Laptop Advices
How-To
Practical, careful steps for upgrades, maintenance, and common laptop problems.
How-ToHow to Check Whether Your Laptop Supports USB-C Charging
Learn how to confirm whether your laptop accepts USB-C charging, match a compatible USB Power Delivery charger and cable, and avoid common mistakes.
How-ToCan You Upgrade a Laptop SSD? Check the Slot, Size, and Service Limits First
Learn how to verify laptop SSD upgrade compatibility by checking the exact model, slot type, drive size, service manual, backup plan, and warranty terms.
How-ToWhat Year Is This Laptop? How to Identify Its Exact Model Before You Buy or Upgrade
Learn how to verify a laptop’s exact model, release period, and individual manufacture details before buying, repairing, or upgrading it.
How-ToHow to Check Whether Your Laptop Supports Two External Monitors
Verify whether your exact laptop can run two external monitors by checking display limits, port video support, dock compatibility, and output settings.
How-ToLaptop Battery Charge Limits: When to Use Them and What They Change
Learn when a laptop battery charge limit makes sense, how to find it on supported models, and how to verify it without confusing it with a repair.
How-ToHow to Check Whether a Laptop’s RAM Is Soldered or Upgradeable
Learn how to verify whether a laptop has soldered or upgradeable RAM using its exact SKU, official specifications, and service manual.
How-ToCan You Charge a Laptop With Any USB-C Charger? Check Wattage, Cable, and Compatibility
USB-C does not guarantee laptop charging. Learn how to verify Power Delivery support, charger wattage, cable capability, and safe replacement options.
How-ToHow to Check Laptop Battery Health and Decide Whether It Needs Replacement
Check laptop battery health in Windows or macOS, separate capacity wear from battery drain, and know when safe professional service is needed.