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By Ade Turner
At the moment I take my photos from my garden so access to power isn’t a problem.
However, I’m considering taking my rig to a dark sky site and would appreciate suggestions on a suitable portable power solution please (budget is tight).
Currently I run DC power via 2 cables to my EQ6-R Pro and ASIAIR Pro from a Nevada regulated supply.
Accessory wise I power my ZWO focus motor, 2 dew heaters (8” Astrozap and 3” Lynx) and the ZWO Vonet wifi extender from three of the 12V outlets on the ASIAIR Pro.
I already have a Celestron 7Ah Power Tank, but I’m not convinced it would be ‘beefy’ enough. What do your think, would it work and be reliable?
Thinking of getting the Asiair pro whenever they come back into stock but wondered about the voltage output for dslr, it states that it’s12v but would that not need to be stepped down to 7.5v for dslr.
im wondering if the Pegasus power box micro with Stellarmate might be a better option as the dedicated power box is controllable.
I tried Ekos a couple of years back and had nothing but problems but tried again last night and was amazed at how slick it was, best guiding and first time plate-solvingwas effortless.
I have the original zwo 120mm so reluctant to get a new one unless I have too. Has anybody been using the new advanced or micro power boxes either stellarmate?
I've been contemplating making a portable power box so I can take my mount to a dark site, a friend gave me an old lorry battery that no longer turns the engine over but will hold some charge. My intention was to get a nice enclosure and build something that looked professional like a few other members have created on here, unfortunately spare time is limited so I went for a simpler solution and created the following and it works very well.
I've been trying out astrophotography from home, where 220V socket is available with unlimited power.
I want to be taking my setup to the field next year, but I'm wondering how to power all the devices.
The mount (10micron GM1000) needs 24V@3A (peak 4A). To get 24V@3A I need 12V@6A DSLR that can run from batteries, and I have lots of spare batteries on standby Raspberry Pi to control the devices, 5V@3A, equivalent to 12V@1.25A Dew Heater that I've just got, but never used, needs 12V@1A I'm considering some upgrades in the near future:
An autofocuser, 12V. Power requirements should be minimal. Replace DSLR with a cooled camera, 12V. I don't know what I'll get, but top models need 3A. Don't know how much of it is used by cooling, and how much is used by the sensor. Questions:
Is it safe to power the mount from a DC hub? My mount's manual says "Please don’t use unregulated power supplies because the output voltage of these units is not good enough to operate the mount.". I didn't find anything that says the warranty is void if not using the pre-approved power supplies. If I don't want to power the mount from the DC hub, how can I power the mount and the DC hub from the same battery? I saw these funny devices on Aliexpress but don't know if they are any good: https://www.aliexpress.com/item/32911966417.html What kind of batteries do you use to provide multiple Amperes to all the equipment all night long? Mount needs 6A (at 12V), cooled CMOS camera needs 3A, dew heater needs 1A, Pi needs 1.25A. That's 11.25A at 12V, which is 135W of power. The battery must be huge. I saw discussions of various DC hubs here:
I want to build a multi voltage power supply to run scope, cameras, usb hub etc each device having different power requirements
I have done some searching round the internet and come up with the following circuit, can anyone provide any advice as to whether it is an OK design or have I got it completely round my neck (Wont be the first time) I have a 24Volt 10A regulated power supply and was looking to use this as the input.
I am sure I am not the only person to want to do this, are there designs out there, I dont want to reinvent the wheel
Any advice greatly appreciated