external batteries can be replaced super fast. no battery internal battery comes close to Ikea Ladda's and Panasonics Eneloop's They can last many years.
While internal batteries have a better form factor they are very had to replace
The Ps4 controller battery has a relatively poor battery life and involves opening up the controller to change which most casuals wont do.
The Nintendo DS internal battery is the holy grail of internal batteries. a lot of people remarked that it can hold a charge for many years and some how lose some of its capacity.
https://www.reddit.com/r/gaming/comments/9y6oaw/so_i_found_my_old_nintendo_ds_and_the_battery_is/
https://www.reddit.com/r/gaming/comments/7k4c8x/found_my_ds_lite_from_five_years_ago_battery/
While internal batteries have a better form factor they are very had to replace
The Ps4 controller battery has a relatively poor battery life and involves opening up the controller to change which most casuals wont do.
The Nintendo DS internal battery is the holy grail of internal batteries. a lot of people remarked that it can hold a charge for many years and some how lose some of its capacity.
https://www.reddit.com/r/gaming/comments/9y6oaw/so_i_found_my_old_nintendo_ds_and_the_battery_is/
https://www.reddit.com/r/gaming/comments/7k4c8x/found_my_ds_lite_from_five_years_ago_battery/