Power for Dew Heaters

[Z3roCool]

Hi there, I purchased 2 dew straps for my camera lens and guide scope. Fit fine but they run off USB style connectors. These ran okay from my power tank. The battery died fairly soon after I started to use them and I now just use the mains from the house to power my mount and other gear. 

The question I have is, do I just need to get a 240v mains adapter to cigarette style connector with USB ports on to power the 2 dew straps?

Something like this - Cigarette to USB Power

and then this - 240v to Cigarette Adapter

Thanks for any input.

Tommy.

Edited November 6, 2019 by Z3roCool

[upahill]

Can you not just use a 240v to dual USB plug, like this... https://www.ebay.co.uk/itm/Speedy-Fast-Dual-2-Port-USB-Charger-3-Pin-UK-Mains-Wall-Plug-Adapter-UK/183745203959

 

[Z3roCool]

1 minute ago, upahill said:

Can you not just use a 240v to dual USB plug, like this... https://www.ebay.co.uk/itm/Speedy-Fast-Dual-2-Port-USB-Charger-3-Pin-UK-Mains-Wall-Plug-Adapter-UK/183745203959

 

That would make more sense!

Sure I read somewhere about the USB port needing to be a certain output? Can anyone confirm or are dew straps all different? I know probably pretty simple stuff but I have no clue when it comes to leccy!

[upahill]

Would depend on how many amps the straps draw, those plugs will handle 5v @ 2.1A (that might be shared on the cheaper ones)

The straps I just looked at on eBay are 4W and draw 0.8A @ 5v each so would be fine. YMMV depending on your straps specs.

 

I don't know what your setup is, but I picked up one of these https://www.ebay.co.uk/itm/Surge-Protected-6-Way-Extension-Lead-White-6-Gang-Multi-Plug-Socket-with-USB/133045836542

for £8 at HomeBargains yesterday to use on my pier so I can have my phone and torch charging. Saves a socket.

Edited November 6, 2019 by upahill

[Z3roCool]

5 minutes ago, upahill said:

Would depend on how many amps the straps draw, those plugs will handle 5v @ 2.1A (that might be shared on the cheaper ones)

The straps I just looked at on eBay are 4W and draw 0.8A @ 5v each so would be fine. YMMV depending on your straps specs.

 

I don't know what your setup is, but I picked up one of these https://www.ebay.co.uk/itm/Surge-Protected-6-Way-Extension-Lead-White-6-Gang-Multi-Plug-Socket-with-USB/133045836542

for £8 at HomeBargains yesterday to use on my pier so I can have my phone and torch charging. Saves a socket.

Thanks for info

That multi plug looks the business. Will check the specs of the straps I purchased, hopefully will be good.

Tommy.

[upahill]

No worries, out of curiosity is your username related to a particularly great 1995 film?

[Z3roCool]

17 hours ago, upahill said:

No worries, out of curiosity is your username related to a particularly great 1995 film?

It is indeed

[upahill]

13 minutes ago, Z3roCool said:

It is indeed

Thought it might be, thats tonights film chosen then, only seen it a few hundred times 🤣

"Spandex: its a privilege, not a right."

Edited November 7, 2019 by upahill

[Z3roCool]

1 minute ago, upahill said:

"Spandex: its a priviledge, not a right."

 Love it!

[carastro]

I use a mains to 12V adapter:

https://www.ebay.co.uk/itm/New-KAMPA-12v-To-Mains-Adaptor-201301-Campsite-Electricity-Adapter-RRP-18-99/283083276022?epid=1805257883&hash=item41e913fef6:g:gvgAAOSw5UdbYyEe

Which then has a 12V splitter plugged into it, something like this:

https://www.ebay.co.uk/itm/Car-Cigarette-Lighter-Socket-4-Port-Splitter-12V24V-Charger-Power-Adapter/163929292419?hash=item262af27e83:g:-CwAAOSwBXldv6e5

Then into that I plug my Dew controller, and my CCD camera and filter wheel.

(Gets more complicated if I have the dual rig running, but you don;t need to know about that). 

Carole 

 

[Z3roCool]

5 minutes ago, carastro said:

I use a mains to 12V adapter:

https://www.ebay.co.uk/itm/New-KAMPA-12v-To-Mains-Adaptor-201301-Campsite-Electricity-Adapter-RRP-18-99/283083276022?epid=1805257883&hash=item41e913fef6:g:gvgAAOSw5UdbYyEe

Which then has a 12V splitter plugged into it, something like this:

https://www.ebay.co.uk/itm/Car-Cigarette-Lighter-Socket-4-Port-Splitter-12V24V-Charger-Power-Adapter/163929292419?hash=item262af27e83:g:-CwAAOSwBXldv6e5

Then into that I plug my Dew controller, and my CCD camera and filter wheel.

(Gets more complicated if I have the dual rig running, but you don;t need to know about that). 

Carole 

 

Thanks for info Carole  Not sure why I found this so hard to get around in my head!  The one thing I have suffered with is dew problems that cut short my imaging time. 

Edited November 7, 2019 by Z3roCool

[carastro]

Forgot to mention my mount has it's own Mains to 12V cable.

Carole 

[carastro]

I use dew heaters all year round, even when they possibly aren't required "just in case".

The dew controller itself runs up to 4 dew heaters. 

Dew heaters are a must. 

Carole 

Edited November 7, 2019 by carastro