You can measure charge current. Measuring in two ways: by ADC Vref range.

You can use two state outputs as follows:

1. External LEDs:
   

2. On CPU GPIO:
   
   

States on output:

You can activate the temperature protection as follows: close JP2 jumper.

After that the charge will only work between 0 and 45 degrees (battery lifetime extension)

The MPPT charger settings as follows:

1. Connecting laboratory power unit to DCIN
2. Setting laboratory power unit to solar panel "voltage at max power"
3. Measuring JP1 voltage
4. Setting POT1 while JP1 voltage will be 2,75V

Default settings: 17.0-17.5V solar panel "voltage at max power"

Application board dimensions and positions:

Sandwich structure dimensions:

Mechanical parts needed:

- M3 x 30mm steel spacer / 4 pcs
- M3 x 6mm steel screw / 4 pcs
- M3 x 2,4mm steel nut / 4 pcs

Solar UPS board bottom side minimal distance 5mm.

Applicable IP67 protected Housing:
- Fibox Euronord ABS: AB121207 (65mm), AB121208 (75mm), AB121210 (95mm), AB121211 (105mm)
- Fibox Euronord PC (UV protected): PC(T)121207 (65mm), PC(T)121208 (75mm), PC(T)121211 (105mm)

Solar UPS module application schematic: