12 hours external battery pack
Posted: Tue Feb 09, 2010 7:16 am
i would like to build a battery for the webdt366 that lasts 12 hours. i found a 4 cell li-ion battery which is rated 15 ah,7.4V and i think it will do the job
now i would like to connect this battery to the secondary battery output connector on the device.(3 pins) because i want it to behave like a secondary battery
i checked the voltage on the connector and found 6.5 v between the first and second pin , 3.05 V between the secondĀ and third and 9.6 v between first and third
Now i am guessing that i could safely connect my battery , between the first and third pin (9.6v) and this could charge it.
anyone can tell me how the 3 pins are used in the webdt 366(winCE) and if i can safely connect the battery as mentioned above
Thanks
now i would like to connect this battery to the secondary battery output connector on the device.(3 pins) because i want it to behave like a secondary battery
i checked the voltage on the connector and found 6.5 v between the first and second pin , 3.05 V between the secondĀ and third and 9.6 v between first and third
Now i am guessing that i could safely connect my battery , between the first and third pin (9.6v) and this could charge it.
anyone can tell me how the 3 pins are used in the webdt 366(winCE) and if i can safely connect the battery as mentioned above
Thanks