I’m trying to avoid inefficiencies running off the 3000 watt AC300 inverter when running small electronics requiring around 250 watts.
I bought the Bluetti aviation port to powerpole cables and tried running a Bestek 300 watt PSW inverter off the AC300’s aviation port, but the Bluetti beeped and gave a “short circuit” error.
How do I get around this? Do I need to use some sort of DC power distribution block?
Thanks!
what was your DC load out of the port? It may have simply been overloaded with the inverter.
If your goal is efficiency i dont think this is more efficient since you need an additional step of conversion ( in the wrong direction)
From ~50V batter down to 13-14V DC And back up to 120/240V.
its likely more efficient to go for a bout 50V strait up to AC
Some thing is missing a “softstart” and it pull to mush inrush current.
Yes, I think that’s right. The port gives 12V x 30A = 360W, and it’s a 300W inverter.
It’s described as an RV port in the manual.
What do most people do with it? Charge a battery?
Sorry, I don’t follow. The AC300 has 12V and 24V ports. Not sure how you get 50V.
I’ve seen softstarts used with ACs drawing around 3000W at startup. The inverter is only 300W, so how would a sofstart help?
Power 12V electronics with it like the lights and stuff installed in the RV that usually run From 12V
Yes but the internal battery is around 58V
You would down convert this to 12/24V to convert it back up. Makes not mush sense.
It would help to limit the inrusch current.
it might be rated 300W output but this don’t mean it will not consume way more power on the input for startup.
For example It certainly has capacitors inside, an empty capacitor is essentially a short for a short moment till its has some charge.
A soft start would avoid this by caring it via a controlled current limit.
Ok, thanks; I’ll take a look at softstarts
Your inverter output is rated for 300 watts but it takes more than 300 watts of input to produce 300 watts of output. The regulation of the DC output consumes power as well to regulate the DC voltage. If you want to efficiently run smaller AC loads the most efficient way is to purchase a smaller unit to run those loads. Just like buying a small economy car to supplement the dump truck when you are only going to the store for Diet Coke and Bread.
Thanks; only issue would be that I would need more solar panels for the small unit, or just put up with some inefficiency by daisy-chaining with the AC300.
From what I’ve read, this would still be more efficient than running directly off the AC300 inverter.