... for shadow Tolerance 5) factory 3W/5V Portable Folding solar charger with storage lithium-polymer batteryTechnical parameters TOLERANCE(+- 0.5)BATTERY ... and 2 years; Product features Be with uni-solar amorphous solar cells, the panels are with many advantages that high efficiency,foldable,water ... charging voltage 2SC1-3-LI 3W/5V Portable Folding solar charger with storage lithium-polymer battery