Xantrex Technology 3000 manual Estimating Battery Requirements

Page 49

Estimating Battery Requirements

This same battery can deliver a higher or lower current for less or more time, limited approximately by the 100 Ah figure (for example, 50 A for 2 hours, or 200 A for 1/2 hour), but usually the capacity figure given is only accurate at the specified rate (20 hours).

To calculate the battery capacity you require, read “Estimating Battery Requirements” on page B–3 and “Battery Sizing Example” on page B–4, and then complete the “Battery Sizing Worksheet” on page B–5.

Estimating Battery Requirements

To determine how much battery capacity you need:

1.Determine how many watts are consumed by each appliance that you will operate from the XPower 3000. You can normally find the watt rating labelled on the product. If only the current draw is given, multiply it by 115 to get the power consumption in watts.

2.Estimate how many hours each appliance will be operating each day.

3.Calculate the daily watt-hours needed for each appliance.

4.Add the total number of watt-hours needed for all the appliances and multiply it by the number of days between charges.

5.Divide the total watt-hours of AC load between charges by 10. This gives the battery Ah used between charges.

6.Double the total Ah used between charges to get the recommended battery size in Ah.

See the battery sizing example that follows.

975-0128-01-01

B–3

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Contents Owner’s Guide XPower Inverter 3000 PlusDate and Revision Purpose About This GuideScope AudienceRelated Information Conventions UsedImportant Safety Instructions Precautions When Working With Batteries Explosive gas precautionsPrecautions for Using Rechargeable Appliances Viii Contents Specifications TroubleshootingOperation Alternators and Charging Systems Battery TypesXii Introduction Quality PowerComprehensive Protection Ease of UseRemote On/Off Switch FeaturesDimensions of Remote On/Off Switch AC Panel Feature DescriptionRemote On/Off Connector Port For connecting the Remote On Positive DC Cabling Terminal always connects to the cable DC PanelDesigning Your Installation Installation1Configuration for Normal Loads Calculating Battery Requirements Installation CodesChoosing an Effective Charging System Choosing an Appropriate Location Inverter must only be installed in a location that isCalculating Size of DC Input Cables Calculating Cable SizesCalculating Size of Chassis Ground Cable To select the correct fuse type and size Calculating Fuse/Circuit Breaker SizeSafety Instructions Installing the inverterInstallation Tools and Materials Installing the Remote On/Off Switch Overview of Installation StepsTo mount the inverter Mounting the InverterAC Connections Connecting the Chassis GroundGrounding Locations DC Disconnects and Over-Current DevicesTo make the DC connections Connecting the DC CablesInstallation Connecting the DC Cables Page Turning the Inverter On and Off OperationOperating Several Loads at Once Display Screen Turning the Inverter Off Between ChargesOperating Limits Power OutputInput Voltage High Surge Loads Inverter LoadsTrouble Loads Recharging Your Batteries Routine MaintenancePage Common Problems TroubleshootingBuzz in Audio Equipment Television ReceptionTroubleshooting Reference Consumer Hotline Page Physical Specifications SpecificationsElectrical Performance Page Battery Types Battery TypesAutomotive Starting Batteries Deep-Cycle BatteriesBattery Size To determine how much battery capacity you need Estimating Battery RequirementsPer Day Hours = a x B Battery Sizing ExampleBattery Sizing Worksheet Two Separate Battery Banks Using Multiple BatteriesTwo Batteries Connected In Parallel Battery Tips Following table Charging System Requirements Alternators and Charging SystemsUsing an Alternator Controller Using a Standard Vehicle AlternatorUsing a High-Output Alternator Charging With an Engine AlternatorCharging From Alternative Energy Sources Charging From AC PowerPage Warranty Warranty and Product InformationWA-2 975-0128-01-01 Product DisclaimerExclusions Return Procedure Return Material Authorization PolicyOut of Warranty Service Purchased From Purchase Date Information About Your System
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