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Yeah... I have a 12v 18Ah unit that has the jumper cables, air compressor, 240v Inverter socket on the back and two cigarette style plugs on the front. It has been used for starting a car or two when not running telescopes. Got it from Jaycar. There is a newer version that also has a USB charging port on the back, and digital readouts on the front, where as mine just has analog gauges.
It will generally last me a good 3 sessions between charges.
Am thinking of either getting a second one, or a higher capacity one, for if my tinkering around with the NUC PC works... planning to strap it to the mount and going wireless.
Geoff.
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