Hi! I have already bought 3 different usb chargers, and I can test them. I also just ordered two additional chargers from ebay.
So I would like to know any details, how to make objective (neutral) comparison between them. Would like to summarize my test data on a dedicated wiki page for everyone's benefit. Im on om2009t5, so maybe the sys paths are different, so would like some pointers where to look and what is exactly the differences between 2.6.28, 2.6.29 and 2.6.30. How to measure charging data, how to automatically resume (from suspend) check the charging datas and suspend again? How to measure voltages? (output voltage of one charger without load is 6.7V) How works the different charging modes? (100,500,1000mA) Is it fix? So if I set 500mA, and the charger can deliver only 340mA, can the charger overheat? Can I charge with 340mA or only with distinct 100, 500 and 1000mA? I also read on the wikipage, that If I set the charging current higher what my charger can deliver, I can destroy not only the charger but the freerunner itself too. (is it the case? some technical explanation?) How the current limitation works? So if I set 1000mA, and the charger can only deliver 500mA, what will exactly happen? (how the current limitation works inside the freerunner?) I hope we can collaborate, collect useful data and publicate them. Im very tired all these cheap half-finished electrical devices (I can only charge 27% from a 3500mAh 3.7V accumulator! It is insane!) I also want to collect the *efficiency* of the charger backed up with some measured data. For example MintyBoost site have some detailed measurement how the efficiency is of the Mintyboost (from 60-80% depending of the charging state of the battery). My goal is: having a usb charger what is capable to recharge two or three times the FreeRunner. Best regards, Laszlo _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
