I've just ordered from China a similar tracker for 30EUR (expected in 30-40 days). My criteria was : waterproof + long battery life time (90 days in eco mode : one GPS fix per hour).Interested in this thread and would have thought something like this would do well
battery life seem to be reasonable?
You can also use a DC-DC converter to step down the main battery voltage to 5V USB e.g.Assuming it charges from USB, you should be able to find a suitable 5V supply from the controller that'll be able to supply enough current.
You're being tracked everywhere anyway. Have a look at your Google Timeline.The best advice I could give on tracking devices is turn them off !! After all do you really want every tom dick & harry knowing where you are at any one time ? You pop out for a bike ride telling the whole world where you are via ' Map My Ride ' or one of the many other cycle ride mapping apps, then whilst you happily wend your way around the countryside back home some one is turning your house over because they know you're out.
Nah...that can't happen,,