Cobra CPI 2590 CPI 2590 - English - Page 9
Power Consumption, Power On and Off
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Intro Operation Customer Assistance Warranty Intro Operation Customer Assistance Warranty Installation Power Consumption Installation Power On and Off Power ICnstoallantiosnumption Notes • For each Secondary Icons piece of equipment you will be operating from TurningInstaYllaotioun r Inverter OnNooters Off Main Icons • Be sure Secondary Icons to have your power inverter properly installed the inverter, you must determine the battery's reserve before attempting to turn the unit on (see installation capacity (how long the battery can deliver a specific amount page 6). of current - in automotive batteries, usually 25 ampere) or ampere-hour capacity (a measure of how many amperes a battery canNodtieceliver forCaautsiopn ecifiedWlearnnigngth of time). Example - Reserve capacity: a battery with a reserve capacity of 180 minutes can deliver 25 ampere for 180 To turn the power inverter on: 1. If a DCNpotoicwe er supCIpnaturlotyionis beOpienragWtioanurnsinegd Causstomthere powWaerrranty source, switch it on. Assistance 2. On the Output End, press the Power Button to on. minutes before it is completely discharged. Example - Ampere-hour capacity: a battery with an Power Button Installation Notes ampere-hour capacity of 100 ampere-hours can deliver Main Icons 5 ampere for 20 hours before it is completely discharged. Secondary Icons To determine the battery ampere-hour capacity you require: 1. Determine how many watts each piece of equipment consumes. This can normally be found on the product Intro label. If only the current draw is given, multiply the current draw by 115 to get the watt consumption. 2. Estimate the time (in hours) that each piece of equipment will be running between battery charging cycles. 3. Calculate the total watt-hours of energy consumption (power x operating time) using the average power consumption and the total estimated running time (in hours). Power x Operating Time = Watt-Hours. Secondary Icons Laptop Blender 100 watts x 2 hours 300 watts x 15 minutes = 200 watt-hours = 75 watt-hours 4. Divide the watt-hours by 10 to determine how many battery (12 volt) ampere-hours will be consumed. Notice Caution Warning Operation Customer Warranty The invertAesrsisitsancne ow ready to deliver AC power to your loads. If several loads are to be operated by the inverter, turn them on separately, after the inverter has been turned on. This will ensure that the inverter does not have to deliver Itnhstaellatsiontarting currentsNotrees quired for all the loads at once. NOTE The Power Button turns the control circuit in the inverter on and off. It does not disconnect Notice powCaeurtionfrom thWaerniinng verter. When the button is in the off position, the inverter draws no current from the battery. When it's in the on position, but no power is being supplied to a load, the inverter draws less than 600 milliamperes from the battery. This is low current draw. It would take more than a week to discharge a 100 amperehour battery at this rate depending on the age of the battery. 12 Nothing Comes Close to a Cobra™ 13