![]() ![]() The power supply needs to be capable of outputting enough current to satisfy the devices that you want to power. A proper AC-DC Power Supply emulates a car battery.Ĭurrent (Amps/Watts) is the other important ingredient. Normal voltage for a battery (when fully charged) will measure 12.9V-14.0V. Almost all astronomy equipment was designed to run from a car battery, but a car battery that measures only 12V is a dead battery. "12V" really means a measured voltage of 13.8V. What to look for when shopping for an AC-DC Power Supply See Power Packs for more information on the Portable Power Systems we offer. We also build portable 12 volt power packs and offer other power solutions that can be used with all your astro equipment that is used in the field. Also available is a 25 Amp model (see below). Pictured to the right are our 5 Amp and 10 Amp Regulated 120 volt to 12 volt DC power supplies which are excellent for operating our systems from a wall socket. If you want to run the system from a wall plug, you will need a 120 volt to 12 volt DC "Regulated" step down power supply with a minimum output of 5 amps. If you are using a battery to run the system, we recommend a 5 amp hour battery as a minimum. Our dew control systems require 12 volts DC. US Prices are approximations based on the average exchange rate of the day. ![]() Or financial institution when your order is processed. The exchange rate will be determined by your credit card company ![]()
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