Hi dave I have used the power max, it works well. Made by some ex Iota engineers if I have the correct info. http://www.powermaxconverters.com
Jay Peltz power > On Oct 30, 2013, at 1:16 PM, "Dave Palumbo" <d...@independentpowerllc.com> > wrote: > > Wrenches, > > I’m looking for a battery charger to augment an OutBack FX 2012 > inverter/charger for a 12V off-grid system that could use shorter charging > times during our cloudy late fall/winter periods in northern Vermont. Both > the generator and the battery bank are amply sized as is the PV array. I have > used Iota chargers in the past, but wondered if they are other options worth > considering. > > Thanks, > Dave > > David Palumbo > Independent Power LLC > 462 Solar Way Drive > Hyde Park, VT 05655 > www.independentpowerllc.com > Vermont Solar Partner > 25 Years Experience, (802) 888-7194 > > > > From: re-wrenches-boun...@lists.re-wrenches.org > [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar > Sent: Wednesday, October 30, 2013 10:57 AM > To: RE-wrenches > Subject: Re: [RE-wrenches] To stack or not to stack? Off-grid 240V > > Hilton, > Kevin's comments are well taken. To add a bit: > > Magnum are exceptionally easy to set up and program. The user interface is > well designed. A few issues to be aware of from my experience: > - All of our Magnum-based off grid systems have been single inverter. At 4 > kW, a single inverter may not be enough for that particular 3hp motor - best > to CYA with the customer on the possible need for a stacked pair. > - Magnum allows a pretty wide voltage dip to accomplish surge capacity, so > when the saw starts, expect lights to flicker. Our CF bulbs flicker when the > refrigerator starts. > > Our trial with Apollo a couple of years ago was probably the single most > negative experience with an inverter manufacturer of my career. Kevin's > comment that the most basic programming required hooking up to a computer is > accurate. The computer must have their proprietary software installed, and > the hookup was necessary even to initiate an equalize charge from an AC > source. We have several warranty replacement and takeout units on a shelf > here, from two installations (including in my own home) where the equipment > was replaced after being unable to get it to work reliably. Ultimately, > Apollo agreed in writing to reimburse us for the cost to replace their > equipment with another brand. They never came through. > > Allan > > Allan Sindelar > al...@positiveenergysolar.com > NABCEP Certified PV Installation Professional > NABCEP Certified Technical Sales Professional > New Mexico EE98J Journeyman Electrician > Founder, Positive Energy, Inc. > A Certified B CorporationTM > 3209 Richards Lane > Santa Fe, New Mexico 87507 > 505 424-1112 office 780-2738 cell > www.positiveenergysolar.com > > On 10/29/2013 10:32 PM, Kevin Pegg wrote: > Hi Hilton, > > My $0.05 worth as off-grid is my primary domain. > > The SW4024 is an excellent inverter, reliable, robust and if you can find > another stack them for 240 and will have no issues with the 3 HP table saw > (assuming batteries can handle that is). I run my whole home from a 13 year > old pair of them. > > Magnum makes an excellent, robust, and reliable off-grid inverter. Available > in 120 or 240 without stack. Stacking Magnums (for more power) is > straightforward and the user interface is very simple and intuitive. There is > some different hardware required for stacking. If a second SW4024 isn't an > option then this is what I would do. > > I test installed an Apollo unit last year. What a frustrating experience that > was. It requires a computer and a RS485 interface to program the most basic > features to make the unit usable. Nice when I was real remote and without > Internet. That alone makes it unappealing in my books. Seems they are a bit > behind the rest of the crowd. I'd not trust a marketing department claim it > will start that saw unless they can demonstrate it. (with of course some > other loads on the system - having to power down the house so one can work in > the shop is hardly usable). > > Outback units are common, though suffer from weak battery chargers and power > quality issues while under charge so for off-grid that involves any > significant generator charging they are not ideal. They are complex to > program and operate and end users report lots of frustration. > > Kevin > -----Original Message----- > From: re-wrenches-boun...@lists.re-wrenches.org > [mailto:re-wrenches-boun...@lists.re-wrenches.org]On Behalf Of Hilton Dier III > Sent: October 29, 2013 6:48 PM > To: re-wrenches@lists.re-wrenches.org > Subject: [RE-wrenches] To stack or not to stack? Off-grid 240V > > Hello Wrenches, > > I have an off-grid client with a 24V system and an old Xantrex SW4024. He > wants 240VAC capability with enough oomph for sometimes making a cut with his > 3 hp table saw without starting the generator. > > I am looking at Apollo, Magnum, and Outback inverters. I'm most familiar with > Outback. I have a couple of installations out there with stacked 3.6 kW > Outbacks. > > However, the Apollo marketing promises that their 3.2 kW inverter will start > a 3 hp motor. Will it actually, and is this a good idea even if it can? > > I'd appreciate hearing about your experiences with 240V Apollo units, stacked > Magnums, and stacked Outbacks. I know from experience that the Outbacks > require some hundreds of dollars of extra fittings and electronics to make a > proper stacked installation. How about Magnum? Any comments on reliability? > > Many Thanks, > > Hilton > > -- > Hilton Dier III > Renewable Energy Design > Partner, Solar Gain LLC > 453 East Hill Rd. > Middlesex, VT 05602 > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >
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