I recently put together what is basically a small UPS. It’s simple, made up of three diodes and some resistors, and lets you trickle charge a battery while power something and then seamlessly switch to the battery if the power source goes out. This was actually built just for charging a small lithium iron phosphate… Read more Diode-OR UPS
Category: Power
A Solar Website
As if I needed another project, I had been tossing something around lately regarding renewable energy and the web. Low Tech Magazine, which showcases what it considers old and forgotten technology, has an edition of their website available served from a Raspberry Pi run entirely off-grid. Their setup consists of a Pi powered from a… Read more A Solar Website
Using Off-Grid Solar On-Grid
Today is the first day of spring here in the Northern Hemisphere, and it’s quite sunny out. I have about 164 watts of solar between three panels, just sitting on my deck. They are charging an old (~12 years) 49 Ah AGM battery in my garage, which still holds something of a charge but not… Read more Using Off-Grid Solar On-Grid