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View Full Version : Long autonomy, charging

bedros1
29th January 2004, 11:20 AM
Plugging and unplugging charger or craddle could affect device socket :cry:
Ihave an :idea: for charging and long life source by using the power pack socket on the rear of the device.
A homemade bed craddle could be confectionned with adequate contacts to power or charge the unit., the regulated source 5v could be similar to proposed by the expansion packs using 4 AA batteries or even a 6v lead battery. The unit would be laid horizontally on bed craddle :wink:
:?: What is the use of the third contact?negative center pole measuring lower volt. is it for current sensing?
I have no experience with Lithium Ion batteries and would not like to cook it :? Could anybody with electronic experience give any hints to experience this idea safely . Bottom socket would be used only for sync and so preserved from damage.
Peter [/b]
Peter Poelman
29th January 2004, 09:39 PM
The powerpack socket is there to charge a battery through the device. Whether it works the other way really depends on how they did things, but I fear this could be harder than you think.
cruisin-thru
29th January 2004, 09:54 PM
Bedros, just be careful plugging your xda in to the sync cradle, what you are proposing is likely to work out far more expensive if it blows your battery or a circuit.
bedros1
30th January 2004, 05:29 AM
The powerpack socket is there to charge a battery through the device. Whether it works the other way really depends on how they did things, but I fear this could be harder than you think.

Thanks;did u have the occasion to see the extra power battery.
In this case could u inform how many plots : 2 or 3
bedros1
30th January 2004, 05:38 AM
Bedros, just be careful plugging your xda in to the sync cradle, what you are proposing is likely to work out far more expensive if it blows your battery or a circuit.

You are right. The idea was using the unit where no electricity is available.
If the extra power battery proposed by manufacteror could do that, I was wondering if other sources with bigger capacity could replace.

do u know how many plots has this extra battery; 2 or 3 ; the one which is supposed to be fixed on the back with 2 screw.
Thanks