Simple Soalr charge/light circuit
Simple Soalr charge/light circuit
(OP)
I need help with the design of a simple solar charge circuit that uses a 5V solar array to charge 1 3.7V Li ion battery during the day and light 3 LED's after dark with the charged battery. Something simple/inexpensive. Any help?





RE: Simple Soalr charge/light circuit
Link
US $1.95
or this
Bright Outdoor Stainless Steel LED Solar Light Garden Yard Landscape Lawn Path
Link
US $1.85
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Simple Soalr charge/light circuit
I'm unaware of a simple single circuit which handles both charge and discharge of a single 3.7/4.2V Li-ion or 3.2V LiFePO4 cell. I'm sure it exists, but I haven't seen it in a cheap Chinese board that you can buy for a few dollars on Amazon or E-Bay yet. If someone knows of one, let me know. The multicell discharge monitoring boards for $2-3 which sound an alarm when any cell drops below a preset level are easy enough to find, as are charge controllers meant to be paired with constant voltage input sources.
RE: Simple Soalr charge/light circuit
Keith Cress
kcress - http://www.flaminsystems.com