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Can 2000 watt inverter handle 2 fridge and 1 chest |
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nicklee 
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Joined: 25 Jul 2023 Location: USA Online Status: Offline Posts: 6 |
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 Topic: Can 2000 watt inverter handle 2 fridge and 1 chestPosted: 26 Jul 2023 at 5:26am |
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I have 3 fridges I want to hook up to a 2000watt/4000w max inverter (pure sine wave). Since the surge is only momentary to start the compressor, do you think there's any risk? Once they're running, even at the same time, then the load is well under 2000w.
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GlueGuy
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Joined: 15 May 2017 Location: N. California Online Status: Offline Posts: 2702 |
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Posted: 26 Jul 2023 at 8:46am |
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The bigger question is the size of the wire to feed that inverter and the battery drain. A 2000 watt inverter is going to draw ~~ 18 amps on the AC side, which will translate to ~~ 180 amps on the battery side. It's going to take a huge battery to deal with that. Ampacity charts say you'll need 4/0 wire, which is almost 1/2 inch diameter.
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bp
2017 R-Pod 179 Hood River 2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost |
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StephenH
podders Helping podders - pHp
Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6417 |
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Posted: 26 Jul 2023 at 8:48am |
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What is the startup surge of the refrigerators? It is possible that the three would want to start at the same time, but probability is very low. More likely is two at once, but the possibility is also low. When you are talking refrigerators and chest, what type are they? Are they high efficiency compressors with variable speed? Are they household models? What about the chest? What do the manufacturer's instructions say?
With the chest, if it has a power block that plugs in, does it also have the option for 12V input? If so, you could run the chest on that and then you would be down to just the two refrigerators. That would make it easier. However, there is too much that is unknown to know whether the inverter would handle what you want it to.
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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Tars Tarkas
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Joined: 14 Jan 2013 Location: Near Nashville Online Status: Offline Posts: 1452 |
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Posted: 26 Jul 2023 at 7:01pm |
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Running just the on-board fridge on battery will run the battery down very quickly. A 2000 watt inverter might work if it has enough input. Without probably going beyond reasonable effort, you won't have enough input by a long shot to do what you want for more than a few minutes. Aside from needing a 4/0 cable from the battery. TT
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hank*pod
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Joined: 06 Oct 2022 Location: PA Online Status: Offline Posts: 63 |
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Posted: 26 Jul 2023 at 11:00pm |
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