Is connected between the solar panel 12 V and 1 or 2 batteries to prevent overcharging If 2 batteries are connected, they will be charged separately. The battery with the lowest charge voltage receives more charging current. With LED displays + high loading capacity: max. 2 x 8 A or 1 x 16 A. Technical data: Input voltage solar panels 15 - 30 V/DC open circuit voltage, 12 V/DC rated voltage Max. Charging current 16 A total (2 batteries a max. 8 A each or 1 battery connected in parallel at both outputs up to 16 A) Ports 1 or 2 batteries, 12 V/DC If only 1 battery is connected, it must be connected to port "2". Displays: each battery displays "Battery charging", 1 display Cooling For currents> 4 A, the metal underside of the module must be screwed on to a heat sink with a surface area of > 300 square cm. Fuse A back-up fuse of F16 A is required (not included) Switch-on battery voltage approx. < 13.4 V/DC (± 5%) Switch-off voltage "Battery full" approx. 14.4 V/DC (± 5%) Current consumption (taken from the battery) < 2 mA Reverse-current-proof (no additional diode required) Connection with 6.35-mm flat plug sleeves Dimensions: approx. 87 x 60 x 32 mm https://elecena.pl/product/18441887/m174-solar-charger-dual-16-a 2021-05-12 https://elecena.pl/product/18441887/m174-solar-charger-dual-16-a 2022-02-15 https://elecena.pl/product/18441887/m174-solar-charger-dual-16-a 2023-10-25 https://elecena.pl/product/18441887/m174-solar-charger-dual-16-a 2025-04-04