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I think this is it if you look in the specs. I use the supplied usb cable and it works fine https://www.currys.co.uk/products/goji-20000-mah-portable-power-bank-black-10237929.html

I am using a goji g6p20bk21c - works perfectly keeps the seestar at 100% charge with dew heater on for hours.

That is frustrating when it happens - Other things to think about - Compass calibration, Is tripod level, is the seestar screwed to the tripod reasonably well so there is no slip, are the stars focussed. If all of that is ok and there is no wind perhaps try imaging something lower in the sky to see if that helps.

Following on from Astrokeiths post. The images below show the 20s images of M51 taken at 21.13 & 23.00 at the start and end of my session (1hr 45 mins) I have drawn a line between M51 and a star. From this and the stars at the edges of both images that EQ mode does prevent any rotation over this time period.

I agree, on a small DSO rotation does not matter, you can just crop. But it might make a difference on larger objects and longer time frames. I am not promoting EQ and I agree it isn't needed to enjoy the Seestar. But I think it is interesting. The extra set up time is 3-5 mins (sighting polaris, 1 random plate solve followed by the horizon calibration. I have only used it twice. Will I continue to use it ? . . Probably. It is simple to use but time will tell. But yes, the joy of the Seestar is its ease of use and set up speed, so I would not continue to use EQ if either of these were affected.

This is the advantage of the EQ mount. This is an uncropped stacked & processed image taken last night over 1.5hrs. (M51 was at 52 degrees at the start, 82 by the end).

Yes, because Seestar is tilted then viewing towards the south becomes restricted as it thinks the horizon is much higher than it really is. I think polaris sinks lower in the sky as you move towards the equator in which case people living in lower latitudes will be more restricted as the seestar has to be tilted more to line up with Polaris. I hope that's right

I am following Cuiv's excellent video https://youtu.be/QlLiK-wcLqk My set up is in the image. You should think about a more robust tripod as the seestar is heavy and might topple the std one. You need a wedge like the skywatcher i have which you adjust to point to polaris. I have taped on a bit of 15mm copper pipe and this works really well. I always use the power bank which would probably power the Seestar with the dew heater all night. So compass calibrate the seestar. Attach it to a reasonably level tripod Sight polaris in the copper tube by manually adjusting the wedge. Then use the app to point the Seestar somewhere overhead at some obvious stars and press the red photo button. Seestar plate solves to work out what it is looking at and then does its 3 point calibration. As soon as that has finished press cancel. That's it. Then use the app as normal to select what you want to observe. Note: It is important to secure the shoe to the base of the seestar reasonably tight so that it does not loosen. This screw connection will be subjected to more torque because of the angle of the seestar. Hope that all makes sense.

Last night I used my Seestar in EQ mode for the first time in my urban garden with a bright moon. Over 84 minutes Seestar saved 69 minutes worth of 20s shots. I removed 9 shots due to satellite tracks before stacking and I am pleased with the result. There was much less rotation as you can see from the uncropped image of M100 and NGC4312. Setting it up was very easy. I wonder if using it in eq mode would enable me to stack images from more than one session? The other advantage of using 20s rather than 10 is that stacking in Siril was much quicker presumably because there are 1/2 as many images to stack and each one must be brighter due to the longer exposure. WRT the discussion about seeing or imaging. For me there is room for both, While seestar is imaging objects which I have no hope of seeing thru my 200mm dob in my garden I can enjoy looking at planets the moon, clusters and the brighter DSOs or just enjoy stargazing. I have tried a more complicated imaging setup but I gave up as I do not have the patience to get them up and running. The UK weather with its short windows of clear skies does not help either. So something that can be taking shots within 10 minutes is perfect for me.

Thank you - have you continued to use the SS in eq mode? - If so have you noted any issues re wear on the gears so far? - Also do you still use 10 sec shots and do you get less drop outs because of trails? I have seen one or two posts about 'tilt' not sure what that is but someone suggested eq could make it worse. Following Cuivs post today I have a wedge and am keen to try this. Sorry for all the questions!

I hope you enjoy. I was interested in Cuiv's stuff too. I gave up trying astrophotog some years ago. I had a reasonable set up but it took so long to set up that by the time i got it working the lens was either dewed up or the clouds had arrived. With my SS-50 I can be imaging within 10 mins of taking it outside. I am quite new to this and rotation is an issue especially with objects close to the zenith (star trails can also be an issue high up too). Certainly an hour is fine and you can go longer if you are prepared for a larger crop. I would jump at the chance to have something as neat as the SS but with an EQ mount. I am sure such a scope will be along in a year or two. This image is of 12PPons-Brooks. It is v low in the sky. I cannot find it/see it with my 200mm reflector but the SS makes it all so easy. 702 stacked 10s shots taken over 2.5 hours from my light polluted garden. Processed in Siril which is a bit tricky because it is moving against the stars .

When i first got mine I panicked when it could not find the seestar but then I realised it wasn't the Seestar but I was using an old tablet that did not have 5g! I am sure that is not your problem but it is worth mentioning.

Lovely clear skies in SW england last evening. Really pleased with my Seestar image of NGC7331. The main galaxy is 40 million light years away. And the tiny ones above it and bottom left are thought to be 350 million light years away. Those poor photons must be exhausted. Amazed to pick them up in my light polluted urban garden. Top marks to ZWO. The Seestar + dew heater was on for over 2 hours and with a power bank attached was still showing 80% charge at the end of the session. Out of interest this image was taken over 102 minutes. What's the longest people have managed before rotation starts to screw things up? I have a feeling the the duration may depend on how high in the sky the object is?

Thank you. You are right a good suggestion - I can detach the top section - leaving a 3/8 thread for the seestar - ideally i should add a rubber washer . The only risk I guess is that the seestar is quite heavy - if you kick over on its small tripod probably no harm done - but if you do the same with it on a larger pod ????? however the wider base should mitigate along with something reflective on the tripod or scope. I see some recommend the CAVIX LP64 for levelling - any thoughts?

I have been using the small tripod but it is too low, easy to knock and vulnerable. I have tried my manfrotto camera tripod but the small adaptor that attaches to the camera or scope and then clicks into the tripod is fiddly and I worry about dropping the seestar. I like the day glo tape idea. The scope being black does not help. Any suggestions about good (reasonably priced) tripods that work well with it appreciated