{"title":"Home Backup Power","description":"\u003cp\u003eThe power went out, it stayed out, and the contents of the fridge went in the trash. Or the season is coming and you would rather not repeat it. A battery inverter is the quiet version of the generator in the garage: no fuel to hunt for after a storm, no fumes, nothing to wheel outside in the rain at 2am.\u003c\/p\u003e\n\n\u003ch3\u003eStart with what has to stay cold\u003c\/h3\u003e\n\u003cp\u003eBack up the fridge first, then the freezer, then the router and a few lamps. That short list is where the money is.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRefrigerator: 100 to 800W running, with a startup spike two to three times higher.\u003c\/li\u003e\n\u003cli\u003eChest freezer: 100 to 400W.\u003c\/li\u003e\n\u003cli\u003eRouter, modem, LED lamps and phone charging: under 100W for the lot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA 2000W continuous inverter carries that list with headroom for the compressor spikes. Air conditioning is a separate question: AC startup surge is the largest load in most houses, so size it against the locked rotor amps on the data plate, and expect to be on a 4000W system with a 24V bank.\u003c\/p\u003e\n\n\u003ch3\u003eThe inverter is one third of the system\u003c\/h3\u003e\n\u003cp\u003eAn inverter converts, it does not store. You still need a battery bank sized to the hours you want to cover and a way to refill it, solar or grid. Buying the inverter alone and expecting backup is the most expensive mistake in this category.\u003c\/p\u003e\n\n\u003ch3\u003eWhen it matters, someone answers\u003c\/h3\u003e\n\u003cp\u003eThe complaint that comes up most in this market is a warranty that goes nowhere once a marketplace ticket closes itself. Support here is support@prestonsupply.com, read by a person and answered within one business day, Monday to Friday, 9am-6pm ET. Continuous power, surge power, input voltage and weight are published on every product page from the manufacturer sheet, including the unflattering ones.\u003c\/p\u003e\n\u003cp\u003eStock sits in US warehouses. Orders leave in 1-2 business days and arrive in 3-7, free shipping inside the US, 30 days to return it.\u003c\/p\u003e\n\u003cp\u003eSize your load list in the \u003ca href=\"\/pages\/sizing-guide\"\u003esizing guide\u003c\/a\u003e, then add solar charging with an \u003ca href=\"\/collections\/charge-controllers\"\u003eMPPT charge controller\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"sumry-4000w-inverter-charger-24v-mppt","title":"SUMRY HGX 4000W Pure Sine Wave Inverter Charger - 24V to 120V, 140A MPPT, 5600W Max PV","description":"\n\u003cp\u003eA 4000 W off-grid inverter charger for a 24 V battery bank, with a 140 A MPPT\nsolar controller already inside. It runs 120 V household loads from batteries, from solar,\nor from grid power, and it will run loads straight off the array in daylight with no battery\nconnected, provided PV input is above 120 V and the grid is disconnected.\u003c\/p\u003e\n\n\u003cp\u003eBuilt for cabins, workshops, sheds, RVs and backup power. Not for permitted grid-tied\nresidential installation.\u003c\/p\u003e\n\n\u003cp\u003eNot sure a 4000 W unit is the right size for your loads? Work it out on our \u003ca href=\"\/pages\/sizing-guide\"\u003eWhat Size Do I Need?\u003c\/a\u003e page before you order.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContinuous (rated) power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurge (peak) power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot published. SUMRY rates this unit at 4000 W continuous and states no separate surge figure, so we do not quote one.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-120 VAC, 50\/60 Hz, single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaveform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure sine wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolar charger\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 140 A MPPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax PV power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5600 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePV input range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55-350 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiFePO4, lithium-ion, AGM, gel, flooded lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBMS communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes - PACE or PYLONTECH protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.25 in LCD, touch buttons, tempered glass top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 × 25 × 8.9 cm (15.7 × 9.8 × 3.5 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kg (19.8 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns without a battery in daylight.\u003c\/strong\u003e Above 120 V of PV input, with the\ngrid disconnected, the array alone carries the load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou choose the priority.\u003c\/strong\u003e AC or battery input priority is set from the LCD,\nso you decide whether the grid or the bank is used first.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt comes back on its own.\u003c\/strong\u003e Auto restart when PV recovers, cold restart, and\nautomatic activation of a sleeping lithium battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection.\u003c\/strong\u003e Overload, over-temperature and output short circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-click reset\u003c\/strong\u003e to factory settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSUMRY HGX 4000 W inverter charger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSUMRY does not publish a box-contents list for this model and does not specify any cable gauge.\u003c\/strong\u003e We will not state one. Plan on supplying your own battery cables, PV cables and breakers.\u003c\/li\u003e\n\u003cli\u003eThe WiFi monitoring module and the anti-dust kit are optional accessories and are not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBefore you order\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery bank must be 24 V.\u003c\/strong\u003e This unit does not run on 12 V or\n48 V banks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall a breaker\u003c\/strong\u003e between the battery bank and the inverter. This is not\noptional on a unit at this current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS communication\u003c\/strong\u003e works with PACE or PYLONTECH protocol batteries. Other\nprotocols will charge, but will not talk to the inverter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi monitoring is an optional module\u003c\/strong\u003e and is not included. An anti-dust kit\nfor harsh environments is also optional.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified CE, not UL.\u003c\/strong\u003e Suitable for off-grid, mobile and outbuilding use.\nA permitted grid-connected residential install will require UL-listed equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eShips free from our US warehouse. Out the door in 1-2 business days, delivered in 3-7 business days. Shipping weight 19.8 lb (9 kg).\u003c\/p\u003e\n","brand":"Prestonsupply","offers":[{"title":"Default Title","offer_id":54877515841863,"sku":"14:350850#4000W 24V;186:203027869;200007763:201336106","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/7605\/1015\/files\/S7af61665340948e892cb485fad73a4a9F.webp?v=1788475050"},{"product_id":"renogy-2000w-pure-sine-wave-inverter-12v","title":"Renogy 2000W Pure Sine Wave Inverter - 12V DC to 110V AC","description":"\u003cp\u003eA 2000 W pure sine wave inverter that runs household AC loads off a\n12 V battery bank. Continuous output is 2000 W. Surge is 4000 W, and surge only covers the\nhalf second a compressor, a pump or a power tool takes to start. It is not a number you can\nrun on.\u003c\/p\u003e\n\n\u003cp\u003eBuilt for RVs, vans, trucks, boats, cabins and backup power. This is an inverter only:\nno solar charge controller inside, no battery charger, no transfer switch. Not sure 2000 W\ncovers what you want to run? Work it out on our \u003ca href=\"\/pages\/sizing-guide\"\u003eWhat Size Do I Need?\u003c\/a\u003e page first.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContinuous output power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurge (peak) power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery input voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110 VAC, 60 Hz (as marked on the case)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaveform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure sine wave, THD under 3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInverter efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOver 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutlets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGFCI-protected AC outlets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLithium, sealed lead-acid, gel, flooded, AGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo fans, cycled on demand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnder 60 dB fans running, under 20 dB fans off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote switch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWired, 19.8 ft cable, included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.7 lb (5.3 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000 W continuous, 4000 W surge.\u003c\/strong\u003e The two numbers are separate and\nRenogy prints both. Size your loads against the 2000 W figure, never against the 4000 W\none.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean enough for sensitive gear.\u003c\/strong\u003e Total harmonic distortion under 3%.\nThe US grid itself sits under 5%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGFCI on the AC outlets.\u003c\/strong\u003e Uncommon at this price.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt is quiet when it is not working hard.\u003c\/strong\u003e Under 20 dB with the fans off,\nunder 60 dB with both fans turning. The fans are not running permanently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch it from where you sit.\u003c\/strong\u003e The wired remote and its 19.8 ft cable are\nin the box, so the inverter can live next to the bank and the switch next to you.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRenogy 2000 W inverter\u003c\/li\u003e\n\u003cli\u003e\nTwo battery cables, one red and one black, ring terminals on both ends.\n\u003cstrong\u003eRenogy does not specify the AWG gauge or the length of these cables\u003c\/strong\u003e, so we\nare not going to state one. Measure what arrives against the current figure below before you\ntrust it.\u003c\/li\u003e\n\u003cli\u003eWired remote on\/off switch with a 19.8 ft cable\u003c\/li\u003e\n\u003cli\u003eNo fuse and no breaker are included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBefore you order\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 V battery bank only.\u003c\/strong\u003e This inverter will not run on a 24 V or a 48 V\nbank. Check the bank you already own before you buy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbout 185 A at full load.\u003c\/strong\u003e 2000 W drawn from 12 V at better than 90%\nefficiency. Your battery, your cable and your breaker each have to carry that continuously.\nA single small 100 Ah battery will not.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePut a fuse or a breaker between the bank and the inverter.\u003c\/strong\u003e It is not in\nthe box and it is not optional at this current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd running watts, not startup watts.\u003c\/strong\u003e Total what you want on at the same\ntime, then compare it to 2000 W. The \u003ca href=\"\/pages\/sizing-guide\"\u003esizing guide\u003c\/a\u003e does that arithmetic for you.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt does not charge anything.\u003c\/strong\u003e No solar controller and no battery charger\ninside. Energy goes back into the bank through separate equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe case is marked 12VDC - 110 VAC 60HZ.\u003c\/strong\u003e Renogy also markets this unit as\na 12 V to 120 V inverter. We are quoting the label on the hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eShips free from our US warehouse. Out the door in 1-2 business days, delivered in 3-7 business days. Shipping weight 11.7 lb (5.3 kg).\u003c\/p\u003e","brand":"Prestonsupply","offers":[{"title":"Default Title","offer_id":54879219351879,"sku":"200007763:201336106;200463262:203028815","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/7605\/1015\/files\/S167739010db24c8c801285612daabfe5q.webp?v=1788488388"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/7605\/1015\/collections\/S76217d7a0cf3401d8866af2c6b940504S_8b19cec1-b9c3-414d-9237-6202694196d9.webp?v=1788495991","url":"https:\/\/prestonsupply.com\/collections\/home-backup.oembed","provider":"Prestonsupply","version":"1.0","type":"link"}