The supply, installation for a uploaded to Youtube video, as well as the operation of the batteries worked perfectly. The navigation device can be updated, on and off. The previously observed, however, difficulties in the operation of the touch screens were offerbar not be attributed to the previously low state of charge of the Old Battery but had quite offensichtich other causes.
Although my equipment is still not usable, there is for the battery a strong buy recommendation, because it helps to pry a lousy model and pricing policy of the manufacturer's tom-tom from. ,
