Solar conversion efficiency is not required to calculate charging time. The specific calculation method is 5600mAh÷150mA=37.33h (Note: In general areas, solar panels produce peak power for 4-5h every day, which means it takes 10 days to fully discharge .The battery is fully charged).
The above calculation method is an ideal value, because it is the calculation method when the solar panel produces the highest power.
The conversion efficiency of solar panels is that when one square meter of area receives sunlight for one hour, the energy output from the sun is 1,000 Wh. If this square meter of surface is covered with solar cells, then the energy output of the sun is 1000 Wh. The energy it receives is 1,000 Wh. If it is converted into electrical energy and produces 150 Wh, the efficiency of convertsion of the cell is: conversion efficiency = output ÷ input = 150 ÷ 1500 = 15%.
The main function of cells is to produce electricity. The main market for power generation is crystalline silicon solar cells and thin-film solar cells, both of which have their own advantages and disadvantages. Crystalline silicon solar cells have relatively low equipment costs, but the consumption and costs of the cells are high, but the photoelectric conversion efficiency is also high, which makes them suitable for power generation under the outdoor sunlight;
Thin-film solar cells have relatively low equipment costs. It is higher, but the battery consumption and cost are very low, but the photoelectric conversion efficiency is more than half of that of crystalline silicon cells, mbut the low light effect is very good and can also generate. electricity under ordinary light, like solar cells in calculators.
Reference for the above content: Baidu Encyclopedia-Solar Panels