Xantrex Technology SW3000 Battery Information, Battery Bank Sizing, Calculating Battery Size

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Battery Information

Battery Bank Sizing

Estimating Battery Requirements

Battery capacity Battery size or capacity is just as important as the battery type selected for use with the Freedom SW 3000. The batteries are the most important part of your system, so Xantrex recommends that you purchase as much battery capacity as possible. A large battery will extend running time and ensure that your inverter/charger delivers full rated surge.

Xantrex recommends a minimum battery size of 200 amp-hours (Ah) for moderate loads (<1000W) and greater than 400 Ah for heavy loads.

See “Estimating Battery Requirements” for information on a more detailed calculation.

About Amp-hoursA number of different standards are used to rate battery energy storage capacity. Automotive and marine starting batteries are normally rated in cranking amps. This is not a relevant rating for continuous loads like an inverter. Deep-cycle batteries use a more suitable rating system such as amp-hours (Ah).

Amp-hour capacity is the number of amps a battery can continuously deliver during a specified number of hours. It is represented by the product of the two —amps multipled by hours.

A typical marine or RV battery rated for 100 Ah can deliver 5 amps for 20 hours (5A × 20 hours = 100 Ah). This same battery can deliver a higher or lower current for less or more time, limited approximately by the 100 Ah figure (50 A for 2 hours or 200 A for 1/2 hour), but usually the capacity figure given is only accurate for the specified duration (20 hours).

Calculating Battery Size

only.

 

Step 1: Compute Amp-hours

installers

For each appliance, compute the number of amp-hours that will be used

 

between charging cycles, as follows:

 

1.

Obtain the wattage. If the wattage is marked on the nameplate rating,

qualified

2.

Obtain the Watt-hours by multiplying that amount by the hours the

 

use that. Otherwise, multiply the marked voltage and amperage:

 

 

WATTS = VOLTS × AMPS.

 

 

appliance will be used:

by

 

WATT-HOURS = WATTS × HOURS.

 

use

3.

Obtain the amp-hours that the appliance requires by dividing that

 

 

amount by 10 (the factor for the Freedom SW 3000, which is a 12-voltfor

 

system):

guide

 

BATTERY AMP-HOURS USED = AC WATT-HOURS/10

 

 

For example, a 100 W light bulb that is used for 4 hours will use 400 watt-

This

hours (Wh) and the inverter will consume approximately 40 Ah from a 12

 

volt battery.

4.Enter this information on the blank calculation worksheet (page 44).

Step 2: Calculate Battery Size

5.Complete the rest of the worksheet; see Table 5, “Battery Sizing Example” on page 42 for an example.

975-0546-01-01

41

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Contents Freedom SW Sine Wave Inverter/Charger Page This guide for use by qualified installers only Statement of Hazard About This GuideRelated Information Electrical Shock Hazard Important Safety InstructionsExplosion Hazard Fire and Burn HazardPrecautions When Working With Batteries Exposure to Chemicals and Gases Hazard Precautions When Preparing to ChargeRisk of Damage to the INVERTER/CHARGER Limitations on USE RegulatoryContents Page This guide for use by qualified installers only Page Introduction Materials List Materials ListElectrical Shock and Fire Hazards Installation InformationBefore You Begin the Installation Installation CodesAbout the Xanbus System Typical Xanbus System DiagramSystem Accessories Xanbus EnabledMounting Location of the Freedom SW Planning the InstallationTwo Key Performance Factors Size and Length of DC CablesAC, DC, and Network Components PlanningPlanning AC Loads AC ComponentsAC Input AC OutputTested GFCIs AC Input ProtectionAC Output Protection Gfci RequirementsDistribution Panels AC WiringAC Output Neutral Bonding DC Cabling DC ComponentsBatteries DC Disconnects and Over-Current DevicesDC Grounding Heavy Load Tools Installation Tools and MaterialsMaterials Overview Installing the Inverter/ChargerFire and Explosion Hazard Choosing a Location for the Inverter/ChargerHeat Hazard Close to BatteryBattery acid SafeConsiderations Mounting the Inverter/ChargerTo mount the inverter/charger By qualified installers only Approved Mounting Orientation Orientation? General AC Wiring Considerations Connecting the AC Input and AC Output WiresFIRE, Electrical SHOCK, and Energy Hazards Equipment Damage Connecting AC Input WiresTo make the AC input connections To make the AC output wiring connections Connecting the AC Output WiresDamage other equipment Lines for Single To prepare the DC cables Connecting the DC CablesDC Connection Precautions Preparing the CablesElectrical Shock and Fire Hazard Guidelines for Routing the DC CablesTo connect the DC cables Connecting the DC Cables to the Inverter/ChargerFire Hazard Equipment Damage DUE to Reverse PolarityDC Terminal Covers To connect the chassis ground DC Wiring and DC GroundingMounting Options Connecting the Battery Temperature Sensor BTSTo mount the sensor on the negative battery terminal Mounting to the Negative Battery TerminalConnecting the BTS Cable to BTS Jack To mount the sensor on the battery case Mounting to the Side of the Battery CaseTo connect the Freedom SW 3000 to the Xanbus network Connecting to the NetworkPerforming Checks Prior to Initial Start-Up Testing in Invert Mode Testing Your InstallationInstallation Complete Testing in Charge Mode and AC Bypass ModeTo verify that the Freedom SW 3000 starts charging Inverter/Charger Physical Specifications Calculate Battery Size Battery InformationBattery Bank Sizing Calculating Battery SizeBattery Information Battery Bank Sizing Worksheet Battery BanksRestrictions on Motor Size = Total watt-hours of AC load between charges Parallel Connection Cabling and Hook-up ConfigurationsBatteries Connected in Series Series ConnectionBatteries in Series-Parallel Connections Series-Parallel ConnectionsPage Page Xantrex Technology Inc

SW3000 specifications

Xantrex Technology SW3000 is a versatile and powerful inverter that plays a crucial role in providing reliable electrical power to off-grid and mobile applications. Designed specifically for those who require a dependable power source in remote locations or for recreational vehicles, the SW3000 stands out with its excellent features and innovative technologies.

One of the primary characteristics of the SW3000 is its ability to deliver a continuous output of 3000 watts, making it suitable for a wide range of appliances and tools. The inverter can handle startup loads for inductive devices, such as refrigerators and air conditioners, with ease. This capability ensures that users can operate their essential equipment without the worry of overloading the system.

The SW3000 inverter is equipped with advanced Pure Sine Wave technology, ensuring that the output power is clean and stable. Pure Sine Wave inverters are crucial for sensitive electronics, as they provide a smooth power output that mimics the utility grid. This feature protects your devices from potential damage caused by lower-quality inverter systems.

Additionally, the Xantrex SW3000 offers integrated features such as an automatic transfer switch, which seamlessly transfers power between the inverter and utility power when both are available. This ensures uninterrupted operation and convenience for the user. The inverter also has a user-friendly interface, including LED indicators that provide information on the inverter's status, allowing for easy monitoring.

Another significant aspect of the SW3000 is its robust thermal management. The design includes built-in cooling fans that prevent overheating during heavy use, ensuring the longevity of the unit. The inverter also comes with multiple safety features, such as over-voltage, under-voltage, and over-temperature protection, offering peace of mind.

Furthermore, the SW3000 is engineered for easy installation, including versatile mounting options, making it an excellent choice for various applications, from boats and RVs to cabins and backup power systems. Its durable design enables it to withstand harsh environmental conditions, ensuring reliable performance in diverse settings.

Overall, the Xantrex Technology SW3000 inverter combines power capacity, advanced technology, and user-friendly features, making it a top choice for those seeking reliable power solutions in off-grid and mobile environments.
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