How to cheat the CCP?

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Beloks2010-09-17 14:50:24

Mobile devices

Beloks, 2010-09-17 14:50:24

Tell me please.
Batteries for phones and PDAs usually have 4 (or 3) contacts, respectively + and -, but what are the other 2 contacts responsible for and how to deceive the device that “there is a battery” that is not inserted accordingly, and another power source is connected.
HP%20IPAQ%20H1900-H1940.jpg

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4 answer(s)

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pooh1, 2010-09-17
@pooh1

and connect to the connector from the charger?

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shushpanchik, 2010-09-17
@shushpanchik

read the datasheet on the battery and find out what to apply to the remaining 2 contacts.

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schursin, 2010-09-17
@schursin

The third/fourth contact is for charge and temperature information.

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ALLIGATOR, 2010-09-20
@ALLIGATOR

Once upon a time, I powered my old Samsung D500 from either 5V or 3.3V PC PSU in this way: I
opened the plastic battery cover, took out the battery, brought two wires out, profit.