I'm glad it helps! You can also lock the charger itself to your house with a chain, cable, or disc lock, if you're worried about people with bolt cutters (just make sure it's anchored very securely.) That might be overkill, but I suppose if you're in a rough neighborhood or get a lot of passersby it may be worthwhile.
Kryptonite New York Fahgettaboudit Chain 1415 & New York Disc Lock https://www.amazon.com/dp/B001SMUB7G/ref=cm_sw_r_cp_api_i_QQ4H80XEPHWJ3WZ30H0M
Anti-Theft Bicycle Motorcycle Alarm
Highly recommend this alarm, cheap and gives extra peace of mind! For lock I have the Kryptonite Fahgettaboudit 1415, which works great.