Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_comet_46p_winners.thumb.jpg.b3d48fd93cbd17bff31f578b27cc6f0d.jpg

Recommended Posts

Hi everyone,

I have just bought an eq3 pro. I initially plugged it in and nothing happened so I brought the cigarette lighter adapter out to the car and it began to work. 

Just wondering is this how you charge it or do you have to leave it plugged in while you are using it? (Newbie here)

Thanks a million 

Share this post


Link to post
Share on other sites

The mount is powered externally and requires a 12 volt power supply for it to work. Either a regulated 12 volt adapted producing at least 5 amps or a 12 volt deep cycle leisure battery are suitable.

  • Like 1

Share this post


Link to post
Share on other sites
20 minutes ago, Cornelius Varley said:

The mount is powered externally and requires a 12 volt power supply for it to work. Either a regulated 12 volt adapted producing at least 5 amps or a 12 volt deep cycle leisure battery are suitable.

Thanks very much! 

Does this mean I have to keep it connected to the car while using it? Or can I plug it in throughout the day and then use the controller later? (Using the car adapter it came with)

Sorry if these questions are ridiculous! ?

Share this post


Link to post
Share on other sites

No, you aren't charging it when you plugged it into your car as there is no actual battery in the mount or control boxes. It has to be connected to an external 12V source all the time. Until you obtain another source of power you will have to plug it in to your car while you're using it. The other end of the cigarette lighter cable you have, has a 2.1mm DC connector which plugs into your Synscan EQ3 box. Mains adaptors (if you are using it near a source of mains) will often have the 2.1mm connector on their output lead which can plug directly into the Synscan EQ3 box. You need to confirm that the 2.1mm connector is wired with the centre pin as positive. Most of the mains adaptors are wired this way but you need to confirm it. Also beware of using mains equipment outdoors where it may get damp without using safety precautions.

A leisure battery as Peter mentions above, which is like a car battery but is happy being discharged to a lower voltage than a car battery would be fine though can be heavy. Some people use car jump start power packs available from Halfords and the like. A search through the forum will show the ones other users prefer.

It will be OK to use your car battery in the meantime but not as a long term solution as car batteries don't like delivering low currents for long periods. They are designed for delivering very high currents for a few seconds.

Alan

 

  • Like 2

Share this post


Link to post
Share on other sites

I know a lot of people use one of these to power their scopes. Inexpensive and does the job. I use this to power my HEQ5 mount and SynScan handset http://www.halfords.com/workshop-tools/garage-equipment/battery-chargers-jump-starters/phaze-4-in-1-jump-starter Just plug in your cigarette adapter end into this thing and you're off to the races. Just make sure you charge the thing every couple of months as stated in the instructions or it will lose its charge.

Edited by tehmac
  • Like 1

Share this post


Link to post
Share on other sites
10 hours ago, symmetal said:

No, you aren't charging it when you plugged it into your car as there is no actual battery in the mount or control boxes. It has to be connected to an external 12V source all the time. Until you obtain another source of power you will have to plug it in to your car while you're using it. The other end of the cigarette lighter cable you have, has a 2.1mm DC connector which plugs into your Synscan EQ3 box. Mains adaptors (if you are using it near a source of mains) will often have the 2.1mm connector on their output lead which can plug directly into the Synscan EQ3 box. You need to confirm that the 2.1mm connector is wired with the centre pin as positive. Most of the mains adaptors are wired this way but you need to confirm it. Also beware of using mains equipment outdoors where it may get damp without using safety precautions.

A leisure battery as Peter mentions above, which is like a car battery but is happy being discharged to a lower voltage than a car battery would be fine though can be heavy. Some people use car jump start power packs available from Halfords and the like. A search through the forum will show the ones other users prefer.

It will be OK to use your car battery in the meantime but not as a long term solution as car batteries don't like delivering low currents for long periods. They are designed for delivering very high currents for a few seconds.

Alan

 

Thanks so much Alan for taking the time out to give such a detailed answer. Really appreciate it! 

I'd say the cheapest option for me (I'm a student haha) would be the mains adapter! 

I'll head into halfords tonight and take a look around.

Thanks again,

sadhbh 

Share this post


Link to post
Share on other sites
15 minutes ago, tehmac said:

I know a lot of people use one of these to power their scopes. Inexpensive and does the job. I use this to power my HEQ5 mount and SynScan handset http://www.halfords.com/workshop-tools/garage-equipment/battery-chargers-jump-starters/phaze-4-in-1-jump-starter Just plug in your cigarette adapter end into this thing and you're off to the races. Just make sure you charge the thing every couple of months as stated in the instructions or it will lose its charge.

Thanks! 

This looks to be a great option for me! Not too expensive either. 

Thanks a million! 

Share this post


Link to post
Share on other sites

I use a 12V 2A plug-top supply for my Celestron and Skywatcher mounts, and have not had any problems. I did extend the output lead with about 150cm of heavy-duty, white, bell flex. This avoided any problems with the mount rotating through 360 degrees, and the white flex shows up better in the dark.

599f0245e1b48_ConsumptionTable.jpg.9d0f96586d75c0992d31f98660ef0d26.jpg

Some other sources.

599f025f5b121_PowerSources-Annotated(R).jpg.da291d0c4d1263d327321737c0e067bb.jpg

I managed to salvage my supply from an office waste bin, (thrown out with a faulty/redundant desktop hub/switch box), but a quick trawl on UK eBay shows similar 12V, 2A, supplies, with UK or EU plugs, are available, from UK sources, for under £/€ 4.00 (even cheaper from China - but slower delivery).

Geoff

Share this post


Link to post
Share on other sites

Hi Brosnan,

If you want a mains powered solution this is the type of power supply you need

12V 5A mains PSU

In the description it states that it has a 2.1/5.5mm centre positive plug which is what you need. The 2.1mm refers to the diameter of the centre pin on the connector while the 5.5mm refers to the diameter of the outer 'barrel' part of the connector which plugs into your scope. You can buy similar power supplies with changeable connectors on the end to suit any type DC socket around but it's easy to get the polarity wrong or use a connector that will work but is the wrong size and will be unreliable. Having one with a fixed connector which you know is right is better. There are various current versions selectable on the Amazon page. The 3A version would be OK for you scope but it's always best to have extra power capability available rather than not enough and the cost difference is small.

You have to be careful using these at night not to get the power supply damp with dew etc. by not exposing it to the open air when dew is around. Keep it in a plastic box or something similar but don't just wrap it up as it can then overheat.

Alan

  • Like 1

Share this post


Link to post
Share on other sites
On ‎24‎/‎08‎/‎2017 at 18:06, symmetal said:

You have to be careful using these at night not to get the power supply damp with dew etc. by not exposing it to the open air when dew is around. Keep it in a plastic box or something similar but don't just wrap it up as it can then overheat.

I use a mains extension lead with my plug-top supply, and use an old shoe-box to enclose the end of the extension lead and PSU. It also gives me enough space to hold my laptop's PSU, if I am using my modified webcam for a bit of AP. Dew and mains voltages are not good bedfellows.  Before opening the box, I always turn off the mains, at the plug end of the extension lead, in my garage.

Geoff

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By Astrofriend
      Hi,
      My EQ6 mount is old now. Very stiff RA and DEC axis, it's time to dismantle it and see how bad the inside is.
      I followed the Astro Baby guide and it was not any big problem to dismantle it. It looks fine inside, I suspect some earlier owner already have done this cleaning and put new grease on. But that must be years ago.
      When I now have dismantled everything, shall I rebuilt it and install timing belt drives? I feel it's a little to much money to put on this old mount. I have to think about it and see what alternatives there are.
      Here is my EQ6 dismantling story:
      http://www.astrofriend.eu/astronomy/projects/project-eq6-dismantling-rebuilding/01-eq6-dismantling-rebuilding.html
      Only first part, now I'm drawing plans.
      /Lars
    • By Anne S
      I'm trying to update my v3 handset prior to selling the mount. I need to update the bootloader from v1.0 to v1.7 before I can upgrade the firmware from 3.12 to the newest version. I've tried following the instructions in the bootloader download but the upgrade loader refuses to install anything.
      Before I realised I needed to update the bootloader, the synscan loader v3.3 just showed 255 255 255 where it should display the handset software, ie 3.12.
      Can anyone advise what I'm doing wrong?
      The handset won't run the mount probably because I had a replacement motor control board a few years ago., I'm guessing. It worked fine before that. I've been using eqMod for years.
      Thanks.
      Anne
    • By Bigwings
      I need my garage back so am selling my excess mounts.
      1. EQ5 motorised on both axis.
      No tripod this was mounted ony pier. Tracks well. 
      £100 Collect only because of weight .
      2. An older type Skywatcher AZ goto mount that came with my SkyMax 127. Good condition .
      £100 Collect please but might be able to send if you arrange courier.
      SOLDto Pitbull ...thanks
      3. AZ GTi  goto in excellent condition . Still have the box so can send at cost.
      The pic shows it with a telescope on it which is not included.
      £200
      Location just north of Newark on A1
      Clear Skies.
      Thanks for looking
      All Sold.
      mods VB please move
       
       
       



    • By Phillips6549
      Complete beginner question regarding using this mount.
      When I have tried to set up and align the mount , the goto targeting is off by many degrees.  Here's what I do - can someone tell me what I'm doing wrong!?
       
      With the power off:
      Align the tripod and mount to North and, with the clutches released, set the declination to my latitude (52deg 28' N). and the mount in the weights-down home position.
      Lock the clutches and fine tune the alignment on Polaris using the mechanical adjustments on the mount.
       
      Turn the power on:
      Set up the date, time and location, elevation etc. in the handset (noting the American Date format and Longitude first (set to W 1deg 48')
      DST = Yes
      Select 1 Star align
      Pick a star, I usually try Procyon or Betelguese depending on the time.
      The scope slews to vaguely the right direction but actually nowhere near.  It can take 2 or 3 minutes of manual slewing to centre the star in the eyepiece.  Finishing, of course, with an up and right movement.
      Finally, press Enter to complete the alignment ==> Alignment Successful says the handset optimistically.  
      Now from the object menu pick another target.  Try, say, Polaris which was where I started and ... nowhere near it.   It's the same regardless of the selected target.
       
      I have tried 2 star alignment and 3 star alignment, a factory reset before starting,  but nothing seems to work.   Once i'm lined up on a target the mount tracks nicely - it just won't go where I want it to!
      Not yet at my wits end but - Help!  
      Mark
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.