“This is an example of a supercapacitor flashlight that can be charged with a standard 1A smartphone charger.”Link to articleRelated ContentRelated Posts:Automatically re-connecting low-voltage cut-outs for 12 and 24 volt lead acid battery systemsUniversal Battery Charge Indicator 3.7v-24vA low-voltage disconnect for 12 volt lead acid and lithium batteriesA 3.6V LiFePO4 charger for under 50cLittle FlashSolar Powered Weather StationSupercapacitor VibrobotCharging Board for Lithium-Ion Battery With Step-up to 5 VoltsMaking Your Own Photovoltaic 5V SystemPortable 3,3V/5V Power Supply