It will be nice to have the batteries overview for the devices presented in the section.
Also, it’s good to have more understanding about batteries inside the device or the type of a cord to charge the acku.
The type of a battery — AA, AAA, etc. Charging cable types — USB, mini-USB, etc.
(see Types of Batteries: Sizes, How Long They Last, & Disposal for more details).
Partial solution is to attach labels to the batteries. But the solution is not standardised for the overall system.