Integrated battery and charger for laptop computer

A portable computer, comprising:

• a screen member holding a computer monitor;
• a base member bearing at least an array of computer keys, the base member being hingedly engaged with the screen member for movement between a closed configuration, wherein the screen member and base member are substantially flush against each other with the monitor and array not being exposed to a user, and an open configuration, wherein the screen member is not substantially flush with the base member and the monitor and array are exposed to a user;
• and
• a battery housing removably engageable with at least one of the base member or screen member, the housing holding at least one battery and at least one AC to DC converter such that the converter is internal to the housing, the converter being electrically connected or connectable to a power cord having a first plug configured for engaging an AC power outlet, the converter converting AC power to DC to charge the battery, no electrical cord external to the housing being required to connect the converter to the battery.