Abstract: An inspection camera system includes a camera unit and one or more accessory tools. The camera is mounted in a camera housing. A primary attachment and a secondary attachment act together to provide a reliable attachment of an accessory tool to the camera housing. The accessory tool is removable from the camera housing by disengagement of the secondary and primary attachments. The primary attachment arrangement alone, in an engaged position, resists at least some motion of the accessory tool relative to the camera housing. The secondary attachment arrangement, when engaged, resists motion of the primary attachment arrangement relative to the camera housing out of its engaged position.

Abstract: The invention relates to a battery (100) that works by regulating the power source (112) to provide a suitable voltage output so that the user's devices/products using the battery will have a high performance among several other advantages. The battery (100) comprises a positive terminal (102); a negative terminal (112); a power source (114); and a voltage regulation device (110). The voltage regulation device (110) is operatively connected to the positive terminal (102), the negative terminal (112) and the power source (114). The voltage regulation device (110) includes electronic components that are operatively connected to each other in order to regulate an output voltage in a programmed variable level.