Here is a quick guide on calculating inverter and battery backup time. This is the formula that is commonly used to calculate Battery Run Time: Although there is seldom a 100% efficiency factor when hooking up a battery with a device, the formula below will be based on this case scenario: The formula generally used is 10 X the capacity of the batter in amp hour divided by the load of the device in watts. the power factor of home standard Note: The inverter capacity is not used in backup time calculation. google_ad_height = 250; 24 0 obj << /Linearized 1 /O 26 /H [ 720 259 ] /L 27634 /E 8061 /N 5 /T 27036 >> endobj xref 24 14 0000000016 00000 n The optional VISTA-ULKT enclosure kit may be used to house up to 34.4 AH batteries. 200AH x 12V = 2400WH. time = (inverter efficiency * battery volt * AH)/load in watts) So if: 1. the UPS is a 1500 VA unit then this likely relies on healthy 12 volt 12.5 amp hour battery 2. if the telescope mount's power supply draws 200 watts at 120v (1.7 Amp), the dome motor draws 373 watts at 120 volt (3.1 Amp), and we want 20 minutes operating time (.33 hour) then Model Specific Calculator: Calculate the estimated run time or battery backup time of specific Battery Backup Power, Inc. UPS (uninterruptible power supply) models using the load in watts and the model/configuration drop down. Consumed by load Or Battery capacity in AH = Required back up hour x Load consumed in VA If you continue to use this site we will assume that you are happy with it. However, the one thing that consumers consistently fail to understand is battery sizing for backup power systems. LaTeX: Generate dummy text (lorem ipsum) in your document, CRUD with Login & Register in PHP & MySQL (Add, Edit, Delete, View), PHP: CRUD (Add, Edit, Delete, View) Application using OOP (Object Oriented Programming). Formula to Calculate the Back-up Time of Inverter Battery. Sorry, your blog cannot share posts by email.