Portable Solar Power
M y newest solar filter requires a power supply. It came with a cable and an AC adapter but, until I have built my observatory (hopefully this spring/summer), it is far easier to use a portable power supply. Besides, the sun is behind trees all winter from where the observatory will be located so, depending on the time of day, I need to set up the telescope in a different location and I sometimes need to move the telescope as the sun moves behind more trees. Portable power is an easier solution for this. The manufacturer offers a solar powered battery to use for this but the price seemed a bit high. This filter is a bit of a power hog so it does need to be a relatively powerful battery. That solar powered battery idea seemed like a great idea for powering a solar filter though. This prompted me to look around online to see if I can find a more reasonably priced solar battery with the same specifications or better. In the meantime, we have a portable charger that we use for char