Quote:
Originally Posted by EdwardArcher
Hey everyone,
I'm just looking for some advice about powering my astrophotography setup for when I am in the field. Currently, I have a 12v 80 ah lead battery. I am hoping to power the following items off of the battery:
Laptop- 20v 3.25 A
Skywatcher HEQ5 mount- 12v 6 A
powered USB hub- 12v 4 A
Note: all these numbers are taken from the adaptors.
My plan at this stage is to use a 240v inverter between the battery to the rest of the gear. I just wanted to make sure that this would work before wasting money on something that won't work. So any advice, recommendations or corrections would be valuable to me.
Regards,
Edward
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Adam is right.
Keep everything 12v. You can buy a 12v laptop power supply from Jaycar for around $70 (maybe more now).
My Microsoft surface is 15v so I bought a 12-15v upstep and power it via a USB adapter.
Inverters are incredibly inefficient, so would be a waste of power, time and money in this set up.
I did a full 12v system on my caravan and only have the inverter as an emergency backup for whatever reason. It’s been 2 years and never used.
Im in the process of designing my own portable power station for astro so will share pics once complete.