R1  used with a INA3221 voltage and current monitor as a prototype model for revision 2. 

Prototype for revision 2:

Weather conditions:

2022/09/22 : Sunny with occasional high thin clouds

2022/09/23 : Early morning thin overcast followed Sun with intermittent cloud coverage

Solar Panel Configuration:

Orientation: South

Latitude: 48°4’41”N

Panel Angle: 50 degrees

Panel Width: 221mm

Panel Length :257mm

MPPT Solar Power Module:

Battery : 2500mAh 3.7V LiPO 1S cell

MPPT Charge Current : 200 mA

Charge Control Termination: C/10

MPPT LiPO Cell maximum charge level : 4.15V

Boost Converter Efficiency :

3.3 Vin 6.0 Vout I_Load 10mA 80 percent

3.3 Vin 6.0 Vout I_Load 200mA 85 percent

4.2Vin 6.0 Vout I_Load 200mA 80> percent

4.2Vin 6.0 Vout I_Load 200mA 90> percent

Load Current : 20mA

V_Batt Load Voltage : 5.832V

Solar Panel : Voltaic Systems P109 6Volt 9 Watt

2022-09-23 07:20:50 : Battery level 3.872 V

2022-09-23 10:10:24 : 4.144 V