🚀 go-pugleaf

        Unless the batteries were on their last legs when you purchased
        the phone (it happens, rarely), there is no reason your phone
        shoud have to be on the charger that much.  A few hours
        overnight should handle all but the heaviest usage.

        The rechargable pack inside COULD be replaced with regular batts
        but that would indeed be a pain. It would most likely involve
        some pretty clever modification to adapt regular battey clips to
        fit in a space specifically designed for the battery packs which
        are made-up of several batteries with spot-welded
        interconnections.