This is a 9V battery clip typically used for our wireless cameras. The ID is 2.1mm, the OD is 5.5mm. Center positive.
9V Battery Snap with 12" Leads
This is a remote control Toro Recycler 22-inch lawnmower robot. This mower features 4WD, remote start and kill switches and optional bagger.
The compact (0.4″ × 0.5″) D24V5F5 switching step-down (or buck) voltage regulator takes an input voltage between 7V and 36V and efficiently reduces it to 5V while allowing for a maximum output current of 500 mA.