> I don't understand why Nokia choose not to let 770 workable without > inner battery or accept a normal external supply. I'm not sure that I entirely understand it either, except in the most general sense of knowing that hooking your unit up to an inappropriate power source can hose it. I think your best course may simply be to order an extra stock battery. It has the disadvantage of needing to be changed once every several/many hours, but will not invalidate your warranty. You may also wish to express to Nokia your desire for a high-capacity battery option, even at the expense of form-factor. Mike p.s. additional message context below... smartkenny wrote: > Mike Lococo wrote: > >> smartkenny wrote: >> >>> I guess there's some kind of communication between the AC-4U and 770, >>> so normal external supply won't work at all. >>> >>> I really need an external supply which can independently provide >>> power to my 770. >> >> >> To my knowledge, the 770 will not run without the battery inserted. >> Generic batteries will not function by design. Perhaps I'm missing >> something obvious, but it's not clear to me why inserting the battery >> and using the charger that comes with the unit is not acceptable to >> you. Maybe if you elaborate on your use case, folks will be able to >> provide more input. > > Thanks for your information. > Inserting the battery and using the charger did work to me. But > sometimes, I may be in a place where there's no wall power and my inner > battery runs out of engergy. I 'd like to have an external battery which > can support 770. So think about it, if I have a *6000* mAh external > battery, theoretically I can use the whole day at anywhere! > I don't understand why Nokia choose not to let 770 workable without > inner battery or accept a normal external supply. Look at this: > http://www.lik-sang.com/info.php?category=307&products_id=8236 > No way to use it on 770! > >> >> Mike >> >
