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Help! Inverter research overload! LF or HF? 1k or 2kw? Charger bulit-in?
#1
I'm looking to purchase our first inverter/converter for our van build.  Our initial HIGH power sources will be a 700 watt microwave (not bought yet, but I hear they pull 1,000 watts normally) and a Instant Pot Ultra (tested with Kill-A-Watt meter and it pulls 1,028-1,040 watts during pre-heat and cooking cycle).  I've read inverters are most efficient at full load, but it seems a 1,000w intervter will not be enough.  We definitely want to future-proof as much as possible and going with reliable name brands.  Another factor is going with a high frequency vs low frequency converter.  Space is limited and while the Magnum LF models are nice, they take up more space.   I'm leaning toward a 2,000w inverter and for the most part, like what I see with the new Xantrex Freedom X line http://www.xantrex.com/power-products/po...dom-X.aspx

I know Xantrex track record doesn't match Magnum or Victron.   If our power needs are just above 1,000 watts...would a 2k version be 'wasteful' in the sense of parasitic draw and lower efficient conversion?  Having a unit with a built-in charger is also nice, but some have mentioned this as a con since if the unit goes bad in the future you have to replace both as with separate units you just replace one. 

I don't see us using a microwave much, maybe a quick reheat here and there.  And the instant pot  is only at 1kw for 3-15 minutes just to reach pressure cooking point.   House battery bank will initially be two 12 volts with 210Ah initially.  With option to add a third. 

Appreciate any recommendations, brands, or pointing to informative threads.

Models should come with 2 years or more warranty, budget under $1,000.
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#2
I would suggest including Go Power! GP-SW1500-12 1500-Watt Pure Sine Wave Inverter in your consideration. I went with the 3000 watt 24v model and have been nothing but pleased with it...sounds like the 1500 watt model might fit your needs well. Good inverters can easily exceed "max" and operate at "peak"...bad ones can't even reach rated max.

I didn't want to spend $2k+ for comparable Magnum and GoPower looked like a good fit, especially with a lot of negative stuff related to changes within Xantrex out there.

What finally made my decision was the level of customer support I kept witnessing in reviews and forums, to the point where they were replacing ebay purchases of "Trucker Edition" units that have the higher voltage cutout for OTR drivers. They replaced units they didn't even sell, just to clear up confusion. I believe they are at least assembled in the US, and my email questions post-purchase were answered immediately, thoroughly, and with an offer for further follow up.

Ford E450 Box Truck RV Conversion
...but no pictures thanks to Photobucket...
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#3
I say no Xantrex, yes Magnum or Victron or Outback but for that sort of money be sure you can upgrade within x days for free if you bought too small.

Microwave likely to need that 2000.

Or go cheap, even one per appliance, but be ready to replace within a year, at those prices can carry a spare.

Don't worry about the efficiency for short usage times, just make sure to turn it off when not in use.

Yes separate charger.
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#4
(08-23-2017, 06:13 PM)BradKW Wrote: I would suggest including Go Power! GP-SW1500-12 1500-Watt Pure Sine Wave Inverter
I didn't want to spend $2k+ for comparable Magnum and GoPower looked like a good fit, especially with a lot of negative stuff related to changes within Xantrex out there.
Thanks! I kind of forgot about GoPower. I'll add it to the list.
(08-23-2017, 06:25 PM)John61CT Wrote: I say no Xantrex,
Yes separate charger.

I know Xantrex has had a bad rep of sorts. I was hoping they up'd their game like many manufacturers over time. Remember Hyundai in it's for 10 years?
John, I knew from reading your other posts here that you're an advocate for separate chargers with custom profiles... though I see those 'pro' chargers are in the $500 range.

Decisions, decisions. Let it be known I am of the 'Buy Once, Cry Once' mindset.

Are chargers with temperature sensors/compensation important for my type of set up. We're not full-time or hardly part-time rv living. For the next year we'll probably venture out once or twice a month for 2-3 days trips at most. Right now I'm pulling the battery after a road trip and charging indoors with an Odyssey OBC-20A. Eventually after we build out the van with hardwired outlets, etc. it'd be nice to just plug in to charge and run gear off mains.
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#5
I've been running my microwave off this Xantrex 2000 Prowatt inverter for about 5 years now and have nothing but great things to say for it. It's $415

http://amzn.to/2wopoYI
2015 GMC Savannah 2500 van, 480 watts of Solar Panels--and a wonderful furry best friend named Cody. I'm out to change the world!
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#6
I would think more in the lines of four 6 volts batteries. I think two 12v is not enough and you shouldn't add a third after the fact. batteries should be the same type, same chemistry and same AGE. highdesertranger
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#7
Xantrex gear is fine, used to be better, but corporate CS attitude is truly woeful not getting better. The consumer-level units (under say $2-3K) are considered disposable, very hard for authorized centers to get service parts.

Skimping on inverters makes more sense than charging IMO.

If you want a good Combi unit look at Victron, but not cheap.

Good chargers only get that expensive at very high amps, sounds like you don't need that?
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#8
(08-23-2017, 07:26 PM)akrvbob Wrote: I've been running my microwave off this Xantrex 2000 Prowatt inverter for about 5 years now

Thanks for the personal experience with this model. I saw a Yt video where the guy bench tested it to deliver 1800 watts for a good amount of time. Added to the spreadsheet.
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#9
(08-23-2017, 07:48 PM)highdesertranger Wrote: I would think more in the lines of four 6 volts batteries. I think two 12v is not enough and you shouldn't add a third after the fact. batteries should be the same type, same chemistry and same AGE. highdesertranger

I read the debate over 6v vs 12v batts in a few forums. It seems depending who you query it matters much or doesn't. I gather the 6v by design can handle a lower DoD over their 12v brethren. On a price to performance note, the Sam's Club 31 group size 105Ah AGM deep cycle (East Penn Deka Intimidators rebranded Duracell) are $169 each. I just bought this one last week. I took my voltmeter and choose the one with highest voltage. (The few others were within 2 tenths and had same 'born' date of 6/17). By the way, FLA are not an option in my Metris build.

I assume you mean I shouldn't add a 3rd at a later date due to recommendation that all batteries be of the same age?
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#10
Just figure the weakest link will set the performance for the whole bank.

If you at least match the batt model, not too long after, a minor issue.

The sealed Deka 6V are likely about the same performance as the 12V, since FLA not an option anyway s'all good.
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The following 1 user says Thank You to John61CT for this post:
road_ahead (08-25-2017)


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