Oscar:
I'm satisfied with my Anker Solix C1000 - has plenty of outlets and even an LED strip I can turn on when I can't see what I'm doing in the dark
it can last 2 full nights, assuming each time I power it on at dusk and off in the morning
powers my AVX mount, 2600mm, 174mm mini, ASIair, and filter wheel; have never had any problem with it
I second the Anker product line. Bottom line, all the suggestions that make use of LiFiPO4 batteries is probably the better option. Naked batteries will require the added fuss of balancing cells, unless you are sure that it has a BMS built in with a charger. And then an appropriate charger beside the BMS. Many batteries have a BMS, but still check for that. The Bluetti, Anker, etc. will also have temperature cutoffs during charge to protect the costly battery from frying if you were to try to charge it when it is too cold. The Anker line of power supplies charge super fast. I never bring mine down to near zero charge, but it is always charged in an hour when using house power to charge. The solar is reasonably efficient, but sounds like you don't really need that.
Another option, I can show you via my post of a few years ago: See
here. This is a simple setup that makes use of the EGO line of tool batteries. The 5 A hr batteries powered the system for nearly the whole night. Note these batteries were well used, so not in the prime of there lives. The adaptor was reasonably cheap, the batteries I had on hand because I use EGO tools, and the voltage step-down adapter and power readout monitor/alarm were dirt cheap on Amazon. Simple to put together, even for this non-electrically inclined person.
I prefer my Anker setup, but the small battery setup I described above is great for a grab and go setup. Even when I have my Anker, I still bring the EGOs as emergency backup.
Oh, and my Anker powers my rig, charges my laptop, phone and powers my cpap while I sleep during the night camping. Easily lasts the night, which is pretty good since my cpap requires that I use the inverter to power it. It all charges during the day out with my solar panel. At the time I bought the Anker, the deals were
much cheaper than Jackery, or Bluetti, which at the time were pricing as premium supplies because they were well known brands. Anker was trying to break into that market and were priced well below the others, and better yet, they often had deals that were considerably lower than the low list prices. Built like a brick, with fans for proper temp control during charging (why it is so much faster to charge than those premium supplies) and if discharge is fast, which won't happen if you are driving a rig.
