Need help powering my heq5 pro

[Calzune]

Hi!

I just got my heq 5 pro and I need to power it with a 12v charger. I got a 12V cigarette cable in the package but I dont know how I should plug it in...

I want to use my telescope at my backyard so the plan is to just plug a cable from my house to the mount. But what do I need?

https://www.jula.se/catalog/bil-och-garage/biltillbehor/12-v-tillbehor/transformatorer/spanningsomvandlare-604149/#tab02

this transforms 230V to 12V  6Ampere

overheating and short circuit protection.

https://www.kjell.com/se/produkter/el-verktyg/stromforsorjning/nataggregat/ac-dc/fast-utspanning/switchad-natadapter-12-v-(dc)-12-w-p44382

12V 1A cable

(this is what Im looking for, just plugin to mount and my wall and everything works. Can I use this?

Or do I need this? https://www.biltema.se/bil---mc/elsystem/starthjalp/starthjalp-12-v-400-a-2000035160

 

 

[Cosmic Geoff]

You can buy 230v to 12v regulated power supplies designed for the task that will plug into the mount. Just check that you are getting the right polarity and connector and amperage rating. Ignore the cigarette cable.

Or if you expect to use the setup out of range of the house, get one of the car starters and plug the cigarette lead into that.

[Calzune]

3 minutes ago, Cosmic Geoff said:

You can buy 230v to 12v regulated power supplies designed for the task that will plug into the mount. Just check that you are getting the right polarity and connector and amperage rating. Ignore the cigarette cable.

Or if you expect to use the setup out of range of the house, get one of the car starters and plug the cigarette lead into that.

What ampere do I need?

[Cosmic Geoff]

If the paperwork or labeling on the HEQ5 don't tell you, assume that it needs 5 amps. 

Something like this: https://www.telescopehouse.com/skywatcher-celestron-compatible-12v-mains-power-supply.html?gclid=EAIaIQobChMInbSdqoG65AIVQuDtCh15BQmyEAQYBCABEgJnBfD_BwE

[teoria_del_big_bang]

The one above would be fine. Enough extra power to run a couple of dew bands as well (you can get splitter cables that give more outputs).

You might consider using a 12V battery source if you ever think you may travel and not be near a mains voltage source.

Such as this, although there are cheaper ones available than this.

Rechargeable-power-tank

The mains supply I use and very happy with is this one:

Regulated-linear-power-supply

I just put it in a large plastic box with lid to keep it dry but have enough air around it it does not get hot.

Steve

[Calzune]

37 minutes ago, teoria_del_big_bang said:

The one above would be fine. Enough extra power to run a couple of dew bands as well (you can get splitter cables that give more outputs).

You might consider using a 12V battery source if you ever think you may travel and not be near a mains voltage source.

Such as this, although there are cheaper ones available than this.

Rechargeable-power-tank

The mains supply I use and very happy with is this one:

Regulated-linear-power-supply

I just put it in a large plastic box with lid to keep it dry but have enough air around it it does not get hot.

Steve

okey thanks!

Does this work https://www.biltema.se/en-se/office---technology/computer-accessories/mains-adapters/mains-adapter-3-12-v-2000030021

until I get a rechargable powetank?

[teoria_del_big_bang]

No, that can only deliver 1A , it is possible to reverse polarity which is not a good idea.

[Calzune]

Just now, teoria_del_big_bang said:

No, that can only deliver 1A , it is possible to reverse polarity which is not a good idea.

okey thanks for letting me know 😃

but this will work right? https://astro.astrosweden.se/sv/articles/2.155.1689/ts-optics-kompakt-stromkalla-12vdc5a

its from a astronomy store near me

[teoria_del_big_bang]

That one looks fine to use.

[Merlin66]

To ensure there's always good power to my HEQ5pro and the NEQ6pro mounts I added a car voltage convertor 12V to 15V rated at 120W (available from JayCar)

This can be used with your transformer (I use a generic 10A 12V transformer) or when using batteries (I use a 27Ah golf buggy battery)

HTH

Ken

 

[Calzune]

How about this? 

https://www.biltema.se/bil---mc/elsystem/starthjalp/starthjalp-12-v-400-a-2000035160

This is cheaper than a powertank, what are your thougts about this? 

[Geoff Lister]

22 minutes ago, Calzune said:

How about this? 

https://www.biltema.se/bil---mc/elsystem/starthjalp/starthjalp-12-v-400-a-2000035160

This is cheaper than a powertank, what are your thougts about this? 

Looking at the manual, its internal capacity is 9Ah. With normal regular use, it is probably sensible not to use more than 50% of its capacity before recharging, so giving you 4.5 Ah. Most mounts use maximum power when slewing at high speed, and a lot less when tracking, particularly for your EQ mount, where tracking is only active in 1 axis. Your suggested power pack should give you several hours of reliable observing before you need to recharge it.

Geoff

[rockinrome]

On 05/09/2019 at 16:37, Cosmic Geoff said:

If the paperwork or labeling on the HEQ5 don't tell you, assume that it needs 5 amps. 

Something like this: https://www.telescopehouse.com/skywatcher-celestron-compatible-12v-mains-power-supply.html?gclid=EAIaIQobChMInbSdqoG65AIVQuDtCh15BQmyEAQYBCABEgJnBfD_BwE

Using same mount with 12V 3A for ages now, early on used 12V 1A (old EQ3-2 power adapter) - seemed OK, but I would err on larger mount more power ...... so 3A.

MJ

[Carbon Brush]

As a general rule, avoid the automotive start/charge products. a lot of them have poor quality batteries.

Have you thought about a well built and approved lithium battery pack? For example:

https://www.firstlightoptics.com/batteries-powerpacks/tracer-12v-16ah-lifepo4-battery-pack.html

Lead acid batteries start to degrade from the day of manufacture. Lithium has much better life expectancy and power/weight ratio.

After spending lots money on a mount and scope, why risk poor operation, or drive electronics damage, on a dodgy power supply?

HTH, David.