Several Highly developed trackers supply battery lifetime of as many as quite a few months or even months, dependant upon use patterns. A tracker with bad battery lifestyle may not deliver timely locale updates, earning recovery tough. Some (though none tested here) will insert VHF tracking together with GSM positioning https://www.trackerfit.co.uk/blog/stolen-car-recovery-why-24-7-monitored-trackers-make-a-difference/