I saw a youtube video showing a similar installation with a 9V battery in a black case connected directly to the battery terminals. I thought I would buy this here. Not as much. I was concerned that I only had the old battery and the new battery that I couldn't use during the transition. Deciding I had nothing to lose, I hooked up a 9 volt battery to the alligator clips and connected it to my outlet. Immediately started squeaking. We then changed the battery, which took quite a while (it was cold and we dropped/touched a few things). He kept squeaking the whole time. After installing a new battery, the car started without any loss of information. My radio and windows are working, my mileage history is there and all my navigation history is intact. HUGE VICTORY for this granny. I would highly recommend this rather than paying a service technician, especially if you have more than one machine. I would advise NOT to wait until the weather is below freezing!
Autoscanner for car diagnostics Rokodil ScanX Pro, OBD2 scanner
29 Review
MUCAR CDL20 OBD2 Scanner - Check Engine Code Reader And Diagnostic Scan Tool For All OBD II Protocol Cars Since 1996, With O2 Sensor, EVAP System, And Smog Test Functions
23 Review
Autel AP200H OBD2 Scanner Dongle - Wireless Bluetooth Code Reader with Health Status Reports - Diagnostic Tool for Engine, Transmission, ABS, SRS - OLS/BMS Resets - All Vehicles (Android/iOS)
11 Review
Vgate ICar Pro Bluetooth 3.0 OBD2 Code Reader OBDII Scanner Scan Tool Car Fault Diagnostic Check Engine Light For Torque Android
22 Review