How To Determine How Long A Battery Will Last When Powering A Portable Fridge
Published 01/25/2023
Products Featured in This Question
Question:
if i use a 3000 watt inverter on a 12 volt batter how long can i run my portable fridge with draws 65 watts
asked by: Freddy
Expert Reply:
Watts divided by volts equals amps, so 65 watts divided by 12 volts is going to equal 5.42 amps. Your battery should have an amp hour rating that you can divide by 5.42 amps and then you'll know exactly how long the battery can maintain the draw from the fridge.
For example, the Go Power Lithium RV Battery # 34282738 has a 100 amp hour rating so you would get 18.45 hours out of the battery. That being said a fridge isn't going to constantly be running and depending on the climate you could use more or less power (i.e. the fridge will run less in cooler temps than on a warm summer day).
A 3000 watt inverter, like the Go Power Industrial Pure Sine Wave Inverter # 34278157, is a bit overkill if you're just using it for the fridge since it's only pulling 65 watts. You could easily get away with a smaller one like the # WC3720 you were looking at. You'll just want to make sure that you don't power any sensitive electronics (cellphone, computer, etc.) with an inverter that isn't Pure Sine Wave.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Shop: Go Power Sun Cycle Advanced Lithium RV Battery - LiFePo4 - Bluetooth - 12V - 300 Amp Hour
- Shop: MaxxFan Plus Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke
- Shop: MORryde RV Cargo Slide Tray - 90" x 29" - 2 Way Slide - 60 Percent Extension - 800 lbs
- Shop: Go Power Lithium RV Battery - Deep Cycle - LiFePO4 - Group 31 - 12V - 100 Amp Hour
- Search Results: maxxair fanmate vent cover
- Search Results: moryde tray
- Search Results: snap pads
- Search Results: rv battery
- Q&A: Can Go Power Solar Elite System be Expanded & Are Lithium Batteries Worth It
- Q&A: Recommended Lithium Battery for a 3,000 watt Inverter
- Q&A: Are 3-Way MC4 Branch Connectors Needed To Hook Up 3 Go Power Overlander Expansion Kits?
- Q&A: Solar Panel Kit for RV with 3,000 watts and 100 Amp Lithium Battery
- Q&A: How Much Power Is Required To Run The Everchill RV Refrigerator w/ Freezer # EV37FR?
- Search Results: trash cans
- Shop: Tekonsha Prodigy P2 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional
- Shop: SnapPad XTRA Square 5Jack Pads for Lippert Leveling Systems - 5-1/2" Square Feet - Qty 4
- Shop: MC4 Expansion Branch for Go Power Solar Panels - 3 Male and 1 Female
- Q&A: Recommended Upgraded Equalizer for 2021 Grand Design Imagine 22RBE XLS
- Search Results: tekonsha custom fit vehicle wiring
- Shop: Trailer Wiring
- Video: Mount: Dexter E-Z Flex Suspension Kit on a 2021 Grand Design Imagine Travel Trailer
- Video: Installation of the Dexter E-Z Flex Suspension Kit - Enclosed Trailer
- Q&A: Replacement Suspension Parts & Lift For 2012 Skyline Koala 27CDS With 3,500 lb Axles
- Search Results: moryde cargo tray
- Video: Mount: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2019 Toyota Sienna
- Shop: Vehicle Air Mattress
- Shop: RV Covers
- Video: Ultimate Overview of the Go Power Lithium RV Battery
- Video: All You Need to Know About the Mighty Cord SurgeMinder Surge Protector and Circuit Tester
on 12V Power Accessories
