Charging battery system for video camera

A power system for electronic equipment comprising:

• a power source adapter;
• and
• electronic equipment having a rechargeable battery detachably mounted thereon;
• said power source adapter comprising:
• first battery securing means for securing a first rechargeable battery;
• charging voltage generating means for generating a charging voltage for charging said first rechargeable battery and a second rechargeable battery secured on said electronic equipment;
• first charging means for charging said first rechargeable battery secured on said first battery securing means using said charging voltage;
• switching means for switching between supplying said charging voltage to said first charging means and supplying said charging voltage to said electronic equipment;
• detection means for detecting completion of charging of said first rechargeable battery;
• and
• switching control means for controlling the switching of said switching means responsive to an output of said detection means;
• said electronic equipment comprising:
• second securing means for securing said second rechargeable battery as an internal supply for powering said electronic equipment;
• and
• second charging means for receiving the charging voltage from said power source adapter for charging said second rechargeable battery;
• wherein, when the charging voltage from said charging voltage generating means is supplied to said first rechargeable battery by the operation of said switching means, said electronic equipment is supplied with a voltage on which current limiting is performed;
• and
• wherein said current limiting prevents charging of the battery in the electronic equipment.