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G'Day Petra,
My setup is all portable at the moment. I use two "power tanks" - one is 7AH Celecstron Power tank to drive my scope, the other is a 24AH jump starter pack that I run my laptop and my dew heaters from.
The dew heater controller is shown in the DIY articles for building your own Pulse Width Modulated Dew Heater controller. I have dew heaters for my corrector plate (front lens of my scope), my finderscope, my eyepiece and I have another I've made to suit my camera lenses should I do some piggy back photography.
Al.
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