Evidence label: General buying framework. Product-specific battery claims should always be checked on the exact manufacturer page.
Short answer
Choose AA power for fast replacement and infrequent maintenance. Choose rechargeable power if you already charge desk devices regularly and want to avoid disposable batteries.
Decision table
| Priority | Better starting point |
|---|---|
| Restore power immediately | Replaceable AA |
| Avoid buying disposable batteries | Rechargeable |
| Travel without a charging cable | AA, with a spare |
| Use an existing USB-C desk routine | Rechargeable |
| Keep the device for many years | Depends on battery replaceability and product support |
Do not compare headline months alone
A maker's battery estimate depends on use, connection method, lighting, polling behavior, and operating conditions. “Up to” figures are useful for broad comparison but are not a promise of your result.
Questions to ask
- Can the rechargeable mouse continue working while connected by cable?
- Which cable and port does it require?
- Is the internal battery replaceable?
- Is a battery included with the AA model?
- Will a low-battery interruption matter during calls or client work?
Buying conclusion
There is no universal winner. A desk with spare AA batteries may make replacement simpler. A desk with a permanent charging cable may make rechargeable power simpler. Buy around your existing routine, not the most impressive headline.
See the distinction in practice in our Lift vs. MX Vertical comparison.