InstaLoad

[1][2][3] Initially battery cell sizes CR123, AA, AAA, C and D were to be catered for.

[4] InstaLoad was designed to address the large number of phone calls to the Microsoft customer help desk in which consumers were improperly placing batteries in Microsoft wireless devices (such as the keyboard and mouse).

[2] In 2012 Memory Protection Devices began manufacturing and selling battery carriers that use InstaLoad.

[6] Microsoft provides royalty-free licensing for manufacturers of accessibility devices.

There were concerns that while "cheap gadgets" could benefit from the technology the licensing terms might prove an obstacle to uptake.