abbyrox
Newbie level 5
I am building a solar charger which can charge Li-Ion batteries upto 9V. I am also using a buck converter using LM2596 for a 5V ouput. There is a switch separating the charge circuit and the buck converter. The battery charges perfectly but when I turn on the buck, without any load it brings the battery voltage down to 1.89V. Please help me guys!! I am using 4 solar panels in parallel(6V, 178mA)