Inverters / Chargers
Battery Based
Off-Grid & Grid Interactive

inverter charger

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Inverters / Chargers; Battery Based Off-Grid / Grid-Interactive Energy

ac inverters
dc

battery based inverters

A battery based inverter / charger is an electronic device that converts direct current (DC) power from batteries into alternating current (AC). Each type of inverter has different features that makes it suitable for your unique cabin, RV, backup or off-grid applications.

 

Magnum Energy Battery Based Inverters / Chargers / On Grid / Off-Grid / Backup

magnum energy made america

Magnum Energy has built a reputation as the premium manufacture of grid interactive and off-grid battery based equipment. For reliable power regardless of grid connectivity, Magnum inverter / chargers, interconnection system equipment, and accessories are a solid base to build a back-up or off-grid power system. With models available in 12, 24, and 48-volt configurations and power output from 600 to 4400 VA, and systems up to 17,600 VA you’ll be sure to find the components right for your situation. Made in America.

magnumBattery Based Inverters Part Number   Output Watts Battery Volts Output Voltage Type Price
On-Grid* / Off-Grid Battery Based Inverters
MM612AEmorningstar controllers 03002302 home 600 12VDC 120VAC Modified
Sine Wave
Off-Grid
MM1512AE 03002306 backup 1,500 12VDC 120VAC Modified
Sine Wave
Off-Grid
MM1524AE 03002303 generator 1,500 24VDC 120VAC Modified
Sine Wave
Off-Grid
ME2012 03002305 solar 2,000 12VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
ME2512 03002311 wiring 2,500 12VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
ME3112 03002315 dc 3,112 12VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
RD2212 03002326 ac 2,200 12VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
RD1824 03002322 electricity 1,800 24VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
RD2824 03002324 power 2,800 24VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
RD3924 03002328 cabin 3,900 24VDC 120VAC Modified Sinewave
On-Grid*
Off-Grid
Pure Sine Wave Inverters
MMS1012 03002320 rv 1,000 12VDC 120VAC Pure Sinewave
On-Grid*
Off-Grid
MMS1012G 03002321 stand alone 1,000 12VDC 120VAC Pure Sinewave
On-Grid*
Off-Grid
MS2012 03002332 off-grid 2,000 12VDC 120VAC Pure Sinewave
On-Grid*
Off-Grid
MS2812 03002336 magnum 2,800 12VDC 120VAC Pure Sinewave
On-Grid*
Off-Grid
MS4024 03002338 magnum 4,000 24VDC 120VAC Pure Sinewave
On-Grid*
Off-Grid
MS4024PAE 03002342 magnum 4,000 24VDC 120/240VAC Pure Sinewave
On-Grid*
Off-Grid
MS4448PAE 03002341 magnum 4,400 48VDC 120/240VAC Pure Sinewave
On-Grid*
Off-Grid

pfc definitionPower Factor Corrected (PFC) Charger: Magnum PFC charger are built into all Magnum inverter / chargers. That means Magnum inverter / chargers use less energy from a generator than a standard charger, using 25-30% less AC current than standard chargers.

on-grid definition*On-Grid – Utility Grid power is available and can be used to recharge batteries but an "on-grid" inverter will not export power.

 

definitions• Off-Grid – Utility Grid Power is not available for use.
• On-Grid – Utility Grid power is available for use. Does not imply the ability to sell power back to the utility grid.
• Grid-tie, Grid-interactive, Grid-intertie, Bimodal – Utility Grid Power is available for use and the system is capable of returning (selling) electricity back to the utility grid.

 

OutBack Battery Based Inverters / Chargers / Grid-Interactive / Off-Grid / Backup

outback power 

OutBack Power is a leading designer and manufacturer of reliable power electronics for solar energy applications. OutBacks' products have been installed in homes, businesses, industrial and government facilities around the world. With the OutBack grid-interactive system, backup AC power is made available 24 hours a day in the event of a utility blackout, providing reliable power and peace-of-mind. At night, the inverter's automatic power save mode ensures that energy is not wasted by needlessly charging your batteries from the utility grid.

outback
Battery Based Inverters
Part Number   Output Watts Battery Volts Output Voltage Type Price
Sealed Inverters / Off-Grid
Outback, FX2524T [Out of Stock] 3200007 home 2,500 24VDC 120VAC Pure Sinewave
Off-Grid
Vented Inverters / Off-Grid
Outback, VFX2812 [Out of Stock] 3200011 home 2,800 12VDC 120VAC Pure Sinewave
Off-Grid
Mobile / Sealed Switched Ground Inverters (Grounded to Vehicle Frame or Grid)
Outback, FX2812MT [Out of Stock] 3200001 home 2,000 12VDC 120VAC Pure Sinewave
Grid-Interactive
Off-Grid
Vented Grid Interactive** / Off-Grid Inverters
Outback, GVFX3524 [Out of Stock] 3110007 home 3,500 24VDC 120VAC Pure Sinewave
Grid-Interactive
Off-Grid
Radian Series Grid Interactive** / Off-Grid Inverters
Radian GS4048A 03004058 backup 4,000 48VDC 120/240VAC Pure Sinewave
Grid-Interactive
Off-Grid
Radian GS8048A 03004039 backup 8,000 48VDC 120/240VAC Pure Sinewave
Grid-Interactive
Off-Grid

pfc definitionOutback GVFX inverters will export power back to your utility company, but only after a couple of charge conditions are met. Your batteries must first complete a cycle charge where they are completely full. The second set of conditions is the AC input power must be connected for a minimum of 5 min. This setting is called the "SELLRE" set point. If both of these conditions have been met, you should verify through the Mate 3 that the selected AC input type is grid. If a generator is selected as the input source, the inverter will not export power. If the utility grid is outside the frequency of the inverter, it also will not export power. Though utility frequency in the United States is tightly regulated, occasionally if you are at the end of a utility long trunk line or some other conditions, you may be receiving what is commonly called dirty power which is power that is outside the parameter of the normal grid frequency.

grid-interactive definitionGVFX Inverters / Because few gas generators produce grid quality AC power, when using OutBack grid-interactive products in conjunction with a generator to recharge batteries, Outback only recommends using Honda EU generators.

grid-interactive definition**Grid Interactive – Utility Grid power is available to recharge batteries, inverter/charger will export power to utility grid.

 

Samlex Battery Based Inverters Off-Grid, Backup

samlex 

Samlex America, Inc manufactures and distributes power conversion products to customers around the globe. Samlex sine wave inverters offer a low-cost, high-quality small sine wave inverter for remote homes, RVs and boats. The 120 VAC output is overload protected. All of these inverters have AC receptacles and low-battery alarms. If you plan to use these inverters with reactive loads, such as motors and compact fluorescent lights or other ballasted light, size the inverter for 4 times the continuous watts required. ETL Listed to UL458.

magnumBattery Based Inverters Part Number   Output Watts Battery Volts Output Voltage Type Price
Off-Grid Battery Based Inverters
Samlex, PST-600-12morningstar controllers 03007129 home 600 12VDC 120VAC Pure
Sine Wave
Off-Grid
Samlex, PST-1500-12 03007128 home 1500 12VDC 120VAC Pure
Sine Wave
Off-Grid
Samlex, PST-1500-24 03007127 home 1500 24VDC 120VAC Pure
Sine Wave
Off-Grid

 

Grid-Interactive Voltage Drop Wire Size Design Considerations

voltage dropIdeally, for off-grid / grid-interactive and on-grid inverter wiring, the total voltage drop for the grid-tied AC side should be <1% when possible. When we design complete systems, we do our best to stay under 1.5% (General industry acceptable tolerance is 1 - 1.5% AC Vdrop). The max. of 1.5% AC voltage drop is all about maximizing inverter up time during Utility voltage swings.

  • • Utilities are generally allowed to swing +/- 5% (ANSI Range B), but can experience even wider temporary swings (a few hours at a time).
  • • Inverters typically trip ~+8% / -10% but can be inside that design to guarantee they are code compliant for grid-interactive functionality.
  • • <1% AC voltage drop between the main breaker and inverter mitigates the risk of the inverter shutting off during “normal” grid fluctuations.

 

Exeltech Off-Grid Battery Based AC Inverters

exceltech made america

Exeltech was founded based on the philosophy that efficiencies in the manufacturing process was the key to a quality product. Made in America, Exeltech XP series inverters are the most affordable, reliable and best regulated, true sine wave inverters available. Ultra lightweight, yet rugged enough for the most extreme off grid or mobile environments. UL listed to 1950 for telecom applications.

Off-Grid Battery Based Inverters Part Number Watts Input Voltage Output Voltage No Load Watts Type Price
Exceltech XP125-12microinverter  BP2970012  125 12 VDC 120 VAC  5  Pure Sine Wave Off-Grid
Exceltech XP125-24  BP2912543  125 24 VDC 120 VAC  5  Pure Sine Wave Off-Grid
Exceltech XP125-48  BP2912545  125 48 VDC 120 VAC  5  Pure Sine Wave Off-Grid
Exceltech XP250-12  BP2925122  250 12 VDC 120 VAC  6  Pure Sine Wave Off-Grid
Exceltech XP250-24  BP2970042  250 24 VDC 120 VAC  6  Pure Sine Wave Off-Grid
Exceltech XP1100-12  BP2970052  1,100 24 VDC 120 VAC  10  Pure Sine Wave Off-Grid
Exceltech XP1100-48  BP2910482  1,100 48 VDC 120 VAC  20  Pure Sine Wave Off-Grid

 

MorningStar Off-Grid Battery Based AC Inverters

morningstar

MorningStar has been a leader in the solar industry for over 16 years supplying quality solar controllers and inverters. Morningstar is a privately owned US corporation with a commercial office located near Philadelphia, and engineering lab in Columbia, Maryland. MorningStar products are manufactured in an ISO 9001 certified facility.

Off-Grid Battery Based Inverters Part Number Watts Input Voltage Output Voltage No Load Watts Type Price
MorningStar SI-300-115Vmicroinverter  BP2680215  300 12 VDC 115 VAC  55mA  Pure Sine Wave Off-Grid

 

Inverters / Chargers Off-Grid, stand alone, bimodal, battery based powering home, cabin, RV, or Marine applications.

Inverters / chargers are solid-state electronic devices used in solar and wind energy system. The inverters Blue Pacific Solar sell employ the latest in power electronics to produce AC power from a DC power source. The power source can be a battery bank, solar panels directly or the electricity produced by a wind turbine. Inverters use a variety of different circuits and designs but we have narrowed those down to a few inverter companies that manufacture durable, reliable inverters with he longest guarantees. Inverters use different switching devices and control methods to affect the electrical waveform properties. As part of a complete solar or wind power system, inverters may also include functions for battery charging, monitoring, system control and MPPT (maximum power point tracking).

Off-grid, or battery-based, inverters convert DC electricity from a battery bank to AC. In this case, the solar array and/or wind generator is used to charge the batteries via a charge controller and only the power demanded by the loads is inverted to AC. Because these systems do not have access to the electrical grid, it is important to properly size the inverter and battery bank. The nameplate capacity of an inverter is measured by its maximum continuous output in watts. The inverter capacity limits the sum of all AC loads you can operate simultaneously. Most AC appliances list their consumption on a tag located near the power cord and/or in the equipment manufactures owner's manual. You will need to add up the consumption of all the appliances you may need to operate at once and that will represent your minimum inverter size. If your appliances include induction motors, like washers, dryers, dishwashers, furnace electronic controls and large power tools, be sure to select an inverter with surge capability to accommodate the higher start-up loads. You can start this process by listing all the equipment you want to run and how long you need to run it each day on the average then send us your list. Blue Pacific Solar staff of Solar Energy Consultants can guide you through the process of off-grid system design.

Off-grid inverters will output either pure sine wave or modified sine wave AC electricity. Pure sine wave inverters can closely mimic utility grid power and will run virtually any AC appliance. Sine wave inverters with cleaner waveforms, such as the Exeltech XP line, are often desired for sensitive audio or telecommunications equipment. Modified sine wave inverters are an economical choice when waveform is not critical. They often have a high surge capacity for motor starting and generally retain good efficiency when partially loaded. Unfortunately, this type of inverter may damage or fail to operate some sensitive appliances such as rechargeable tools and flashlights, laser printers, copiers, variable speed drives. Some audio equipment will have a background buzz when operated or some ceiling fans that are speed modulated with a speed control may have a problem with a modified sine wave inverter. Most battery-based inverters found on our web site (portable inverters being the exception) supply standard 120VAC / 60Hz single-phase outputs. The SMA Sunny Island, Magnum MS-4024, and OutBack FX Series inverters can be stacked in pairs for 240VAC. Pairs of OutBack and Sunny Island inverters can also be wired in parallel to provide more output power at 120VAC single-phase, or 120/240VAC split-phase. The Magnum MS-PAE inverters deliver 120 / 240VAC power from one inverter, and can also be wired in parallel for greater power output.

Battery-based inverters may interfere with radio and television reception, cause noise on telephones or buzz in audio equipment. Interference can be minimized by using pure sine wave inverters and by locating the inverter as close to the batteries as practical, twisting together the cables that connect the inverter to the battery, running AC lines separate from other wiring (such as telephone wires) and locating the inverter away from appliances that are susceptible to interference. All inverters cause interference with AM radio reception. Battery-based inverters require high current from a battery bank to operate large loads. A 2kW inverter will draw nearly 200 A from a 12 VDC battery bank. Large cables and good connections are required for safe operation.

Grid interactive, or bimodal, inverters can export power to the utility grid, but can also supply emergency backup power for critical loads during a grid outage. These inverters use a battery bank for energy storage, and include an automatic transfer switch that enables them to safely operate off-grid during a blackout. Magnum Energy is a great utility interactive inverter and we use the Magnum inverter on many of our home power emergency backup kits.

The grid interactive inverter is connected to the battery bank (12, 24, or 48 VDC), then to an AC subpanel for critical loads, and the building's utility main panel. The battery bank is charged by the solar array connected through a charge controller. Under normal conditions, it operates like any grid-tie inverter and will export any excess power produced by the solar array. During a utility blackout, the inverter will automatically disconnect from the grid, and supply AC power to the critical load subpanel by drawing energy from the battery bank. Blue Pacific Solar has a home emergency backup system that will operate with SMA or Enphase MicroInverters using your solar array to recharge the batteries during blackouts if the system is under 3kW or 3,000 watts or about 12 235 watt solar panels. When the outage is over, the inverter will automatically switch back to grid-tie operation and recharge the batteries. The Outback Radian GS grid interactive inverters have split-phase 120/240 VAC output from a single inverter. The Outback GFX and SMA Sunny Island inverters have 120 VAC output, but two inverters can be "stacked" for 120/240 VAC output. The SMA Sunny Island is designed to interact with a Sunny Boy grid-tie inverter to create an "AC Coupled" power system.