XANTREX FREE­DOM SW 3012

Boating - - BOAT DOCTOR WEEKEND WORKBOOK -

Twenty years ago, mod­i­fied sine-wave (MSW) in­vert­ers pro­vided ad­e­quate power to equip­ment that is reg­u­lated by ana­log or me­chan­i­cal de­vices. To­day, ev­ery­thing from your cof­fee maker to your re­frig­er­a­tor has a mi­cro­pro­ces­sor that re­lies on the smooth flow of true sinewave (TSW) power. Some new ap­pli­ances won’t run on older in­vert­ers’ AC os­cil­la­tions.

The Free­dom SW 3012 ($1,789.99, west­ma­rine.com) serves as a steady source of 3,000 watts of AC power to run del­i­cate elec­tron­ics, like com­put­ers and smart TVs, that might oth­er­wise mis­be­have or even fail on MSW power. When shore power is present, the Free­dom SW be­comes your house bat­tery charger, en­sur­ing the bat­tery bank stays fresh. With the op­tional re­mote-con­trol panel, you can eas­ily mon­i­tor power use and source, bat­tery lev­els, tem­per­a­ture and charge rate if AC power is present. It of­fers the fur­ther con­ve­nience of pro­vid­ing an easy read­out of fault codes and an abil­ity to re­set them with­out hav­ing to crawl in the tight spa­ces where the in­verter may be lo­cated. An op­tional Com­box app­based Wi-Fi mon­i­tor can keep you in touch with your sys­tem from any­where on the planet.

In our tests, the re­frig­er­a­tor ran smoother, the flat-panel TV op­er­ated flaw­lessly, and we could run our Keurig dig­i­tal cof­fee maker.

In our in­stal­la­tion, the Free­dom’s volt­age sen­sor de­tects shore power or genset power au­to­mat­i­cally and, in its ab­sence, ac­ti­vates to keep seam­less power to on­board de­vices.

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