AC converter for hairdryer

[tripleped]

Would this work for powering a small travel hair dryer (for eyepiece dew) with Celestron power tank 12V, 7 Ah? 

[Carbon Brush]

In short. No.

First the power tank is intened for low current loads. Not the huge load imposed by the invertor.
12V and 300W equates to 25 amps! The power tank won't do this.I

Very often these invertors are awkward about surge loads. That being a combination of a stationary motor and cold heating element.
So it may not want to start up. Even if it does, the cigar plug is going to melt.

The invertor claims to handle a 300W load. Quite low power for a mains hair dryer, so maybe a bigger invertor? But if you get a low power dryer how long will the battery run?

12V 7Ah is only 84Wh. Or a 300W dryer for about 16 minutes. Theoretical figure assuming 100% conversion efficiency and not popping a fuse or breaker in the pwoer bank.
In reality, if it does run, I would be very surprised to see 5 minutes before a flat battery.

Why not buy a 12V camping hair dryer? They tend to be in the 150W region, which a good quality cigar plug can handle.
You don't need the high power of a mains hair dryer. Just a bit of heat to drive off moisture and lift the glass be a few degrees.

You also ought to look at a bigger battery. Maybe even a leisure battery.

HTH, David.

 

[michael8554]

Mains travel hairdryers are typically 1000 Watts plus.

Plugging one of those into a 300 Watt Inverter will release the magic smoke :-<

As David said, a 12V hair dryer is perfect for the job.

Michael

[tripleped]

I will look into the camping hair dryer. I appreciate all the help! Someone else on SGL once recommended a Jackery battery so might be worth considering.  Thanks again  

Ken

[astronymonkey]

Something like this is the sort of thing you are after https://www.gooutdoors.co.uk/15910258/streetwize-12v-hair-15910258

What sort of scope are you planning on using it on as there may be other options that will work that might be better ?

cheers

[Clarkey]

You could put the eyepieces in you pocket to keep warm -no dew problem,