Review on 🔋 POWISER 3.3W Solar Battery Charger 12V ─ Ultimate Solar-Powered Battery Maintainer & Charger for Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, and More! (3.3W Amorphous) by Dino Burks

Solar Service Tool TestSummary: Solar Service Tool performed worse in cold weather than when not connected to a car, with Solar Service Tool nearly halving battery life in comparison to without connection to the machine showed. The temperature conditions for the test were even more favorable for the solar field holder than for the control. Installation: The solar panel is attached to the outside of the rear window using the suction cups supplied. Windshield/solar panel mounted at an angle of approximately 50 degrees. The solar panel was brand new, cleaned and tested with a multimeter to make sure the unit was working. up to 1 hour before sunset to allow sufficient sun exposure for this device to function properly. Vehicle: Jaguar S-Type R. New battery. In this car model, the battery is located in the trunk. In use, the solar panel holder was connected directly to the battery using the battery clamps provided, and the distance was within the length of the cables provided. All doors, lights, etc. were confirmed closed/off for each test. The solar battery service device was not connected to the battery during the control portion of the test. Cloudiness and temperature were also recorded daily. For the results to be considered valid, the temperature and cloudiness had to be consistent with or conducive to the solar activity observation/compared to the control for the results to be considered valid. Cloudiness was calculated as follows: 1 = no clouds all day, 2 = partly cloudy or all day, 3 = full clouds. / Rain snow. Each daily score during each phase (control/maintenance) was recorded daily and the average was calculated using the arithmetic mean method to determine the average solar exposure conditions to maintain solar activity throughout the test. A popular weather website showing weather conditions in my area was used to collect cloud cover and temperature data. Temperature was confirmed by on-site thermometer, turbidity was confirmed by on-site visual observation. The conditions were found to match the information on the website very closely. At the start of each phase, a new battery was charged to 12.1 volts by the car's alternator via the drone's remote launch system when the car was off. When the car was parked, the car alarm went off and the drone's remote launch system was activated. (The drone's remote system only allows me to remotely activate the system when needed to check battery voltage without further intervention into the vehicle.) The vehicle remained in the same spot for both phases of the test. Battery voltage: 12.1 V at 13:00 19.12. Battery voltage 11.7 V at 12:00 26.12. 26 Battery voltage: 11.7 V 13:00 30.12. Average High Temperature 45.8 FA Average Low Temperature 32 FA Average Cloudiness: partly cloudy (2) facing south at tilt up 50 degrees Result: (days/loss): 5 days/0.4V loss