Use a regulated 12-volt power supply: a unit such as the SVBONY SV241 requires a stable power supply. When traveling by plane, IATA regulations allow lithium batteries in the cabin up to 100 Wh; for batteries between 100 and 160 Wh, you must obtain the airline’s approval, and batteries exceeding that limit are prohibited. Always check with your airline before departure.
Fog forms when the optics cool below the dew point: an anti-fog screen delays the problem, while a heating element solves it. On a Schmidt-Cassegrain, the'Celestron Dew Heater Ring It replaces the blade retaining ring and heats the blade directly; it does not interfere with a second rail or accessories. It is available in sizes from 6″ to 14″. All our tips are in this article.
PrimaLuceLab resistors, such as the 180 mm, operate at 12 V with an RCA plug, whereas the ASIAIR has 5.5 × 2.1 mm DC outputs. All you need is a DC-to-RCA resistor adapter or a Y-cable. Add up the currents listed on each connector to ensure you stay within the output’s capacity.
NexStar SE mounts, such as the one from the NexStar 8 SE, run on 8 AA batteries, but they drain quickly in cold weather. For regular use, a 12-volt battery or a suitable AC power supply is much more convenient.
