Combination solar and external battery powered camera battery charger

A camera battery charger comprising:

• a camera case having a camera storage part for storing therein a chargeable in-camera battery and an external battery storage part for storing therein an external battery;
• a solar battery provided in the camera case;
• and
• charging means including a power supply output terminal connected to a camera stored in the camera case for charging the in-camera battery by the solar battery, and charging the in-camera battery by an external battery when the external battery is stored in the external battery storage part.

A camera battery charger with a chargeable in-camera battery, comprising:

• a solar battery;
• an external battery with an electromotive force different from an electromotive force generated by the solar battery;
• first booster means for boosting a voltage generated by the solar battery;
• a second booster means for boosting a voltage which is output from the external battery so that the voltage is substantially equal to a voltage boosted by the first booster means;
• and
• charge control means for controlling the first booster means when the external battery is not set so that the in-camera battery is charged by solar battery, and for controlling the second booster means when the external battery is set so that the in-camera battery is charged by the external battery.

A camera battery charger with a chargeable in-camera battery, comprising:

• a solar battery;
• a power supply charged by the solar battery;
• and
• charging means which is driven by the power supply so that the in-camera battery is charged depending on the electricity obtained from the solar battery;
• wherein said chargeable in-camera battery is not connected to said charging means to supply power to said charging means.

A camera battery charger in plural types of cameras having rechargeable batteries having different voltage, comprising:

• a solar battery;
• booster means of which booster means is changed so that the voltage generated by the solar battery is suitable for charging the in-camera battery in plural types of cameras;
• means for detecting or setting information as to the voltage of the in-camera battery in a camera which is to be charged;
• and
• charge control means for changing the booster ratio of the booster means in accordance with the detected or set information as to the voltage of the in-camera battery, so that the in-camera battery is charged.