GELL CELL BATTERY CHARGER

taken from Talking Electronics

added a selector switch for the 3 current settings 300mA, 650mA and 1300mA

making use of an old hp printer's power adapter 15V 530mA

all is fine except for one small glitch: the LED wont lite up.

special thanks to the following: electronicsNmore, wtam69

From Joule Thief to Solar Night Lights

the schematic diagram:

the solar charging station:

using a small 6V solar panel:

led lights turns on when night sets in:

inspired by: /MrFreddiew1/

Solar recharging station

using 4 solar garden lights

Simple dark activated night light

the schematic diagram: