Cellular phone in which memory is removably installable due to the removability of battery, and battery recharger capable of supporting date write to cellular phone memory

A cellular phone comprising:

• a phone body capable of wireless communication;
• a battery removably installable to the phone body;
• a memory removably installable in the battery;
• and
• a memory access circuit provided in the battery and permitting access to the memory from the phone body via the battery.

A cellular phone comprising:

• a phone body capable of wireless communication;
• a battery removably installable to the phone body;
• a memory built in the battery;
• and
• a memory access circuit provided in the battery and permitting access to the memory from the phone body.

A cellular phone comprising:

• a phone body capable of wireless communication;
• a battery removably installable to the phone body;
• a battery adapter installable between the phone body and the battery;
• a memory removably installable in the battery;
• and
• a memory access circuit provided in the battery adapter and permitting access to the memory from the phone body via the battery.

A cellular phone comprising:

• a phone body capable of wireless communication;
• a battery removably installable to the phone body;
• a memory provided in the battery where the battery is to be installed to the phone body so as to be put into contact with the phone body when the battery is installed to the phone body;
• and
• a memory access circuit permitting access to the memory from the phone body.