Letter Re: Battery Options for LEDs and Small Electronics
Jim, I have read and enjoyed both your books. I have told all my like minded friends about them. Regarding LED flashlight batteries: I have a flashlight from Sportsman’s Guide that uses two of the CR123 batteries, it will also use the #18650 lithium ion battery. One of these takes the place of two of the CR123 batteries, and last much longer, and is rechargeable. The charger can use either 120 VAC or 12 VDC input voltages. I have a system set up that uses the Harbor Freight 45 watt solar panels. I bought mine on sale for $149 and …