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
> 
> 
> 
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