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 > 2000 watt pure sine wave inverter recommendation needed

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doughere

Mooresville NC

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Posted: 01/22/22 04:29pm Link  |  Quote  |  Print  |  Notify Moderator

I have an AIMS 2000 watt inverter with remote. Have had it about 2 years, am very satisfied with it's performnce. Price was resonable.

https://smile.amazon.com/PWRI200012120S-Inverter-Continuous-Connect-Terminal/dp/B01E3V66QS/ref=sr_1_12?crid=251DQJBHVGFZD&keywords=2000+watt+pure+sine+inverter&qid=1642893536&sprefix=2000+watt+pure+sine+inverter%2Caps%2C72&sr=8-12

If you want to run a microwave, remember a 1500 watt microwave(input probably is about 2300-2400 watt) may/probably will overload your 2K inverter. I had to change out mine to a 900 watt microwave.

I love having it, but coffee makers and microwaves suck up the amps !!

Doug

* This post was edited 01/22/22 05:07pm by doughere *

Hemi Joel

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Posted: 02/15/22 02:48pm Link  |  Quote  |  Print  |  Notify Moderator

OK, I bought the Xantrex and there is a problem.

The issue I am seeking help with is that I just installed the new inverter and it wont run my Keurig coffee pot, labeled 1450 watts.
This is the inverter, 1800 watt, 3000 surge. Xantrex 2000
Wired with 4 feet of 1 gauge copper to a trio of group 31 lead acid battery's that are tied together with 4 gauge cable less that 1 foot each, with the inverter connected to the center battery. There is a 250 amp fuse in the positive 1 gauge cable, 1 foot from the battery. Battery's are charged by 2 - 200 watt solar panels and an MPPT. Plus the converter when on shore power.
When the coffee maker tried to start, the inverter stopped it with an overload error code. How can that be? What is my diagnosis procedure? how can 200 A squeeze through the tiny little filament in that fuse?
Thanks for any help.


2018 Eagle Cap 1163 triple slide, 400W solar, MPPT, on a 93 Dodge D350 Cummins, DTT 89 torque converter, big turbo, 3 extra main leafs, Rancho 9000s rear, Monroe gas magnums front, upper overloads removed, home made stableloads, bags.


time2roll

Southern California

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Posted: 02/15/22 03:36pm Link  |  Quote  |  Print  |  Notify Moderator

Is the Keurig plugged direct into the Xantrex? No other loads?

Could measure voltage direct on the Xantrex DC input terminals to verify voltage as the appliance starts. But that would be low voltage shut down not overload.

I have seen Keurigs at about 1750 watts. Would you have a way to measure the power?


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Hemi Joel

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Posted: 02/15/22 03:46pm Link  |  Quote  |  Print  |  Notify Moderator

Timer, yes the Kurig was plugged directly into the inverter to test. I did plan to wire it to an outlet in a convenient location, but tested it first. I have a digital clamp on ammeter, but it only measures when placed around a single conductor. I suppose I could rig up a short extension cord with some of the outer cover stripped away to measure the current when the kurig s plugged into shore power. That would tell me if the 1450 watts is accurate.

otrfun

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Posted: 02/15/22 04:01pm Link  |  Quote  |  Print  |  Notify Moderator

Didn't the Xantrex return a specific error code on the front display? Low input voltage (12vdc)? Output overload (120vac)?

Are you sure your batteries are fully charged? 12.6v - 12.7v is a good voltage, assuming you don't have the converter turned on and there's no remaining dynamic charge voltage.

Have you checked current draw of the Keurig using commercial power just to verify it really is drawing its rated ~1450w load? Could be drawing more.

4 ft. long 1 gauge runs should provide less than 2% voltage drop with a 145a DC (1450w AC) load---which should be fine. You may have a bad connection or terminal crimp somewhere causing a large voltage drop. If you have a space heater (or equivalent load), place it on high heat (1200-1400w) and see if the Xantrex will power it. If not, try low heat (600-700w). Either way, check voltage at the battery terminals, then check voltage at the inverter input terminals. Record both voltages. Ideally, you shouldn't have much more than a ~.15v drop with the heater on low, and no more than ~.30v on high. Anything significantly higher indicates a bad connection or terminal crimp somewhere.

Lastly, in reality, the Xantrex is closer to being a 1500w inverter than a 2000w. We owned/used a Xantrex Prowatt 2000 for several years. With loads higher than 1400-1500w it tends to struggle.

Good luck!

* This post was edited 02/15/22 05:17pm by otrfun *

Hemi Joel

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Posted: 02/15/22 04:17pm Link  |  Quote  |  Print  |  Notify Moderator

I'll check that stuff tonight. Maybe I should have got a 3000W for a cushion?

otrfun

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Posted: 02/15/22 04:38pm Link  |  Quote  |  Print  |  Notify Moderator

Hemi Joel wrote:

I'll check that stuff tonight. Maybe I should have got a 3000W for a cushion?
I commented on the Xantrex Prowatt 2000 in a previous post in this thread. Good unit as long as you're not trying to push-it too hard. We used it to power our small (1050w input power) microwave just fine. However, when we tried to power our 11k BTU a/c (1320w) with a Micro Air Easy Start installed, it was a no-go. Based on the Xantrex's 1800w continuous and 3000w surge ratings, it should have been a go. Max inrush current (LRA) on our 11k a/c unit with the MAES installed was less than 20a (2400w)---well within the Xantrex's 3000w surge rating. In any case, we swapped the Xantrex for a 2000w Aims high-frequency PSW inverter. All is well now.

If you go with a larger inverter check the parasitic (no-load) current ratings. If you dry camp a lot, it may be something to consider. Some 2000-3000w inverters can have a parasitic as high as 2-3a. Both the Xantrex Prowatt 2000 and Aims 2000w PSW inverters have a low parasitic of .6-.7a (realworld current readings; specs are higher).

Again, good luck with everything!

pianotuna

Regina, SK, Canada

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Posted: 02/16/22 04:43pm Link  |  Quote  |  Print  |  Notify Moderator

Hemi Joe,

Try using an incandescent light bulb to "wake up" the inverter before cycling the Kurig. I found that necessary when I had a cobra inverter rated for motors (MSW) at 2500 watts. I used a 60 watt bulb.

The Prowatt is just a smidgen small for the load, based on 125% of the rated load.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Hemi Joel

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Posted: 02/17/22 11:35am Link  |  Quote  |  Print  |  Notify Moderator

Problem solved! Sometimes it's the simple things...
I could not get the coffee maker to run long enough to test voltage and voltage drop. So I plugged in an electric heater and the inverter would run it on low for a few minutes before faulting. I found that voltage drop from the battery to the inverter was just under.4 volts. But the voltage from the batteries was dropping under 11.
My battery's were pretty old, but had performed well on all the light duty tasks like the furnace and the CPAP. But, I bit the bullet and bought 3 new group 31 fla deep cycle from Menards for $109 each. I installed them and let them charge over night. Viola! It all works. Voltage drops to 12.1 for about 30 seconds during the Keurig's most intense heating phase. Now I can have my quick, easy, no mess coffee when I travel. Thanks everyone for all the help!

otrfun

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Posted: 02/17/22 04:37pm Link  |  Quote  |  Print  |  Notify Moderator

Hemi Joel wrote:

Problem solved! Sometimes it's the simple things...
I could not get the coffee maker to run long enough to test voltage and voltage drop. So I plugged in an electric heater and the inverter would run it on low for a few minutes before faulting. I found that voltage drop from the battery to the inverter was just under.4 volts. But the voltage from the batteries was dropping under 11.
My battery's were pretty old, but had performed well on all the light duty tasks like the furnace and the CPAP. But, I bit the bullet and bought 3 new group 31 fla deep cycle from Menards for $109 each. I installed them and let them charge over night. Viola! It all works. Voltage drops to 12.1 for about 30 seconds during the Keurig's most intense heating phase. Now I can have my quick, easy, no mess coffee when I travel. Thanks everyone for all the help!
Glad you got it working!

Had a chance to check battery to inverter voltage drop with the coffee maker drawing max current, or the heater on high? I assume the 12.1v voltage reading (while powering the coffee maker) was at the battery terminals?

I ask because you mentioned a .4v battery to inverter voltage drop with the heater on low (~700w). That's high. That would translate to approx. .8v battery to inverter voltage drop with a higher (~1400w) load like the coffee maker. That's really high, and could force the Xantrex into low-voltage shut-down earlier than it should. It'll work fine with the batteries well-charged. However, as the batteries discharge you may not be able to access the full capacity of the batteries (while under high load) because of the excessive voltage drop.

In an earlier post you mentioned you had a 4 ft long, 1 gauge cable run from the battery to inverter. That should net you less than a .2v drop with a 1400-1500w load (assuming you have no bad connections or terminal crimps). That's less than a 2% drop which is ideal.

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