Inverter recommendations

[Rodd]

Gents:
A friend has asked my advice as to which brand of inverter/charger would be best to install on a 45 foot boat. 12v system, 500 aH battery bank, 2000 watt inverter . Would you all recommend Mastervolt, or MagnaSine pure sine wave (as I have), or one of the new more compact units(Xantrex or ProMariner). Also wants a remote panel .

Thanks for opinions on this!

Rodd

 

[nightowle]

magnum. good product. U.S. company.

 

[jssailem]

I’ve heard that the MagnaSine pure sine wave is compatible with your AC electrical equipment.

 

[WayneH]

I like my MagnaSine. It's been running the house since August 2015. But I've got 7.2KW of solar panels feeding it.

Somebody double check me here. 12V * 500AH = 6000WH?
FLA batteries to 50% is 3000WH.
Full power draw on inverter is 3000WH/2000W = 1-1/2 hours. Or nearly 3 hours with lithium batteries.
That's where the math leads me but there was no calc for resistance and impedance.
And that's why I'm not an electrical inginear.

 

[JamesG161]

one of the new more compact units(Xantrex or ProMariner). Also wants a remote panel .

Do you have an onboard Generator?
It makes a difference on which to choose.

I just installed Xantrex and just got the remote panel to control it.
Jim...

 

[Maine Sail]

Victron, Outback or Magnum...

 

[Davidasailor26]

Somebody double check me here. 12V * 500AH = 6000WH?
FLA batteries to 50% is 3000WH.
Full power draw on inverter is 3000WH/2000W = 1-1/2 hours.

The math is right, but you’re leaving out the fact that at high rate of discharge a lead acid battery has less capacity. 500 AH is the capacity at a 20 hour discharge rate. At a much faster discharge rate the capacity will be significantly less.

 

[Rodd]

Thanks all, and he does not have a generator on board.

 

[CarlN]

A Victron Multi Plus. If there's room to mount it I'd consider going up to the 3000 watt 120 amp charge unit. The 50% faster charging can really help. Not much more money. These things are conservatively rated, packed with features, and not overpriced. And it comes with a 5 year replacement warranty. That alone.....