QZ watches your car's battery remotely over the mobile network — wherever it is parked. When the battery weakens, you hear about it early, in plain words.
A premium or seasonal car spends most of its life parked. That is exactly when the battery is most vulnerable — and unwatched, it weakens without a single warning.
A Maserati in our fleet began showing a weakening battery — the voltage gradually fell to 11.98 V. QZ flagged it days in advance, and the owner replaced the battery before being stranded. One case is not a guarantee — but when a battery weakens gradually, QZ warns early, typically days in advance.
Why not a €30 Bluetooth monitor?
A Bluetooth monitor works only within about 10 metres, and only when you open the app next to the car. QZ reports over the mobile network from anywhere — an underground garage, another city, winter storage. Pricing from €199 one-time includes the SIM card, connectivity and the first year of service.
Will installation affect my car or its warranty?
No. QZ connects exclusively to the battery posts — no CAN bus, no OBD, no wiring into the car. Your vehicle warranty stays untouched, and installation takes about 10 minutes.
I park in an underground garage. Will it work?
QZ communicates over the mobile network, not Bluetooth. It reports from anywhere at least a weak phone signal reaches — underground garages included.
Won't QZ drain the battery itself?
In Storage mode QZ draws about 5.3 mA — roughly 1.5% of a 60 Ah AGM battery per week. It is designed for cars that sit for months at a time.
From €199 one-time, including the first year of service.