Best power supply for equipment?

I use a 12v MeanWell supply. 150 W I believe it's rated at. It powers all my equipment.

Cheers,

Wim

I use a Powerwerx regulated power supply. You can run it at 12V, but pretty much all astro equipment can take the higher 14.1V (check with the manufacturer).

This is connected to a Rigrunner distribution stripwhich supplies power to all my equipment (USB hub, focuser, dew heater, camera, mount). You can get the required cables from Powerwerx or make your own. The power pole connections are very secure.

For remote, you can simply connect a LiFePO4 battery to the strip and you are done.

If I have access to an AC power outlet, I run everything thru a power strip using the supplied power adaptor the individual components come with.   If out in a remote dark sky spot,  I use a combination of an Ego battery for my Paramount and a Jackery 1000 for my laptop and the other imaging components.  My ZWO AM5 runs on a Goal Zero 500.  I find I usually poop out before any of the batteries do.  Hope this helps, too.

Clear skies,

Patrick

Idk about the "best" but I'm very happy with my EB70 from Bluetti
My setup with 2600 @ -10C, CEM70, EAF, 120mm guidecam, asiair, two heaters and a wifi router demands between 50-60w/h and it's just enough to come through a night on a single charge.
So far I got around 80 cycles and everything working fine.

I wouldn't use anything with less capacity or you'll have to end your session early.

The power consumption @enta has given is what I experienced with a similar setup. I used a 100AH lead battery back then. But lead batteries have same drawbacks. You need one that's made for cyclic use. Then you may take care to ensure it's not too empty after a session. Otherwise it may die very fast.

Whatever powersupply you plan to use, make sure it has some spare capacity. For an AC supply, you may need one that delivers at least 1/3rd more power than what you may have measured or calculated. There is a lot of intelligence (mikrocontrollers, processors,etc) in many of the equipment nowadays. They need power at the moment they switch their millions of transistors. So the spikes in the current flow are very fast and hard to measure with simple equipment most people have. Everything may run fine until a certain point. Especially in cold or hot weather, nothing behaves as expected. There may occur some problems, you will spend days to find the solution (maybe never find it). At the end, the power supply is one thing most people didn't think of as solution. I did have some trouble with some of my devices and changing the power supply solved a lot of my problems.

If you go for a battery, a LiPo might be the way to go. With a lead battery, you may only be able to use half of it's capacity to keep it alive for a longer time. LiPos are more expensive, but they handle cyclic use much better. Usually they have controllers built in to prevent them from states they could not handle.

There are a lot of solutions out there and many of them were suggested above. I just want to add some thoughts about things to take care of. I hope you find the right supply for your needs...

CS

Christian

I've been using one of these for a few years with no issues - https://www.firstlightoptics.com/power-accessories/nevada-psw-30-25-30a-switch-mode-power-supply.html

Joe Linington:
I use a standard $20, 10A switching power supply from Amazon and it powers my mount, USB heaters, EFW, EAF, guide camera and main cooled camera. I use the same power supply for my primary rig with a much more expensive EQ6R. The only thing I don't run off of the 10A is my computer. Unless a power supply is complete trash, it will make decent enough power for an EQM-35. This is a link to Amazon Canada but I am sure you can find the same thing in your home country.

https://www.amazon.ca/gp/product/B0B553QK46/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I do basically what Joe does except I use one 2x5A (Amazon BZONE SUPERNIGHT(TM) 100V - 240V to DC 12V 5A Switching Power Supply Adapter for LED Strip Light https://a.co/d/3SaqllP)
One for the mount and another for the camera.
Been using them for years without issue.

Jim

I recently got a Sky-Watcher EQM-35 and I realized this thing eats a lot of electrons. 

Now I need a proper power supply and I was wondering what you guys would recommend and what you use for yourselves.

 Dear, if you have access to a 110/220V power supply, there are many stabilized unit options available. A 13.8V unit with at least 10A is recommended. I use this one: https://www.astroshop.eu/power-supplies/10-micron-stationary-stabilized-power-supply-for-gm-2000-and-gm-3000/p,25306However, you can find similar model not branded as "10 Micron" for around 120€ in general electronics stores. It operates from an 110/220 V AC input, with an output of 11 to 14 VDC (u can adjust it) with 10.5 Amps, making it suitable for most amateur setups.The only downside of this model is the cooling fan which occasionally activates, and it is a bit noisy, but it's a minor issue.If you don't have a 110/220V AC supply, there are many other solutions at different price points. When I'm in remote locations, I use a LiFePO4 battery. I have two models: one 30Ah (for smaller setups) and a 50Ah for my larger configurations.With both solutions, I can last two nights on the battery, and both are lightweight being LiFePO4. The 30Ah weighs around 3.5Kg and the 50Ah around 5.5Kg. They're a bit pricier compared to other battery types, but the extra cost is worth it.(very light)Of course, you'll need the appropriate charger for them.Overall, they're much more affordable than other solutions.

For both situations, whether remote or at home or in an observatory, there are many other solutions available: ready-made, DIY, and semi-DIY. It's up to you to decide how much you want to spend in and if you're comfortable with cables, plugs, connectors, soldering,  nothing difficult BTW...


cheers and CS
timopro

Wesley Robert Donnelly:
The hobby is eye wateringly expensive as it is, then the telescope retailers charge us 3-4 times the cost for something as basic and routine as a power adaptor!??  Even a small piece of machined metal, like a T-Adaptor, cost wayyy more than it costs to manufacture!? I know this because a member of my family used to run a business selling similar products and she got them for say $1 a piece, and would then sell them for $2 a piece. But these major 'scope retailers are charging us much much more! We're being robbed!

I wouldn't say that we are being robbed, just basic capitalism. These manufacturers are charging you more because:

• Quite possibly they have to due to the scale of manufacture being smaller than, say, personal computers or laptops, hence their costs are higher. They could be buying these from someone else, rebranding them, and reselling them, which adds cost.
• They need the margins to stay in business. We really don't know what their overall cost structures are.

A good business will never have  cost+ model, they will sell something at what the market will pay for it.

As a consumer, at least as it comes to these items, we have a choice to buy something like a power supply from somewhere else.

While yes, this hobby is expensive, it is a hobby of choice. None of us depend on it to make a living, whereas the manufacturers do. And competition has made it a lot cheaper and more accessible than it used to be.