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Which portable power station for my new fridge?

Discussion in 'Technical Chat' started by ReelAddict, Mar 3, 2021.

  1. Mar 3, 2021 at 12:44 PM
    #1
    ReelAddict

    ReelAddict [OP] Well-Known Member

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    I used the search bar but didn't find too much info on this subject. I figured I would ask the experts here on TW. After doing some research, I decided to pull the trigger on a budget friendly 45L fridge freezer by Rough Country and a fridge slide from Ironman 4x4 (links below). I want to run a portable power station for now and maybe a dual battery setup in the future. What is a good portable power station that will run my fridge for 2-3 days. I have the Rockpals 350W power station with their 100W solar panel in my Amazon cart but waiting to purchase (link added). What are you using to power your fridge for your weekend trips? How long is it powering it for?

    *I'll be upfront, I'm having a hard time understanding all the electrical math involved*

    Power consumption for 45L fridge: 0.2kwh/24h

    https://www.roughcountry.com/rough-country-cooler-refrigerator-99020.html

    https://ironman4x4america.com/fridg...csJozBNBxODiH5an4soSd12EVSedN3fcaAp9QEALw_wcB

    https://www.amazon.com/ROCKPALS-Por...RWJ97EHPJWXAFTNFS&refRID=5ZTRWJ97EHPJWXAFTNFS
     
  2. Mar 3, 2021 at 10:21 PM
    #2
    6 gearT444E

    6 gearT444E CEO & CFO @BPF

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    Herculiner Hootus
    It will draw 3.75 amps when running which at 12 volts is 45 watts. The 0.2 kWh per day is the estimated draw based on average run time. If you back calculate they are assuming a duty cycle of 19% or ~4.5 hours per day, this is average and could be more or less depending on outside temp and setpoint of fridge.

    (0.2*1000)/45w

    to figure out a battery size to power, assuming you’d be camping out for 2 days, you’d be using it for 3.75 amps * 9 hours, so you’d want at least a 33.75 ah battery.
     
    ReelAddict [OP] likes this.
  3. Mar 3, 2021 at 10:45 PM
    #3
    6 gearT444E

    6 gearT444E CEO & CFO @BPF

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    Checking the specs on the power station it’s rated at 78Ah so you should be able to power for 20.8 hours. At 4.5 hours run time per day, you should be able to run the fridge for about 4.5 days in theory without having to recharge the power pack. I would check actual amp draw when running to verify the ratings they supply. Maybe get a watt hour meter and do some testing if you’re so inclined.

    https://www.harborfreight.com/kill-a-watt-electric-monitor-93519.html?cid=paid_google|||93519&gclid=Cj0KCQiAhP2BBhDdARIsAJEzXlHPc-5VLMbHkMbC-QvkO-0E4CzrgrINfW5PgCN9iCsX_sF0Iit4tw4aArDMEALw_wcB
     
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  4. Mar 3, 2021 at 10:58 PM
    #4
    ReelAddict

    ReelAddict [OP] Well-Known Member

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    That's impressive! Thank you for breaking that down for me. I had to read what you said a couple times to fully understand. Thanks man!
     
    6 gearT444E likes this.
  5. Mar 3, 2021 at 11:10 PM
    #5
    6 gearT444E

    6 gearT444E CEO & CFO @BPF

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    no problem. Keep in mind all those numbers are theoretical. These are conservative, likely assuming you don’t open the fridge because it’ll probably run longer than advertised in a given day, they probably also assume whatever the default temp is set to for the rating, so lowering or raising will change how long it runs, and also assuming battery of power pack is at 100% of rating and you aren’t using the pack to power anything else. I’d say based on what I see though you can easily run 2-3 days.

    I power my arb fridge off an optima d34 which has a C20 capacity of 55 Ah, and it easily lasts all weekend 2-3 days of camping without needing to be recharged
     
    ReelAddict [OP] likes this.
  6. Mar 3, 2021 at 11:17 PM
    #6
    ReelAddict

    ReelAddict [OP] Well-Known Member

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    Lynnwood, Washington
    Vehicle:
    2018 TACOMA TRD OFF-ROAD DBL CAB
    SUSPENSION: Bilstein B8 6112 Off-Road Suspension Kit - 47-234413 (5/4 Setting W/600Lb Coils) Bilstein 5160 Series Shock - w/0" to 1.5" Rear Suspension Lift SPC Adjustable Upper Control Arms (SPC 25470) Wheelers Off-Road Multi-Leaf Add-A-Leaf Set - 1.5" Lift 3 Leaf Progressive Wheeler's Front Superbump Set Wheeler's Rear SuperBump Bumpstop Set Tacoma 2005-2020 Toyota 4WD - Carrier Bearing Shim Kit by Old Man Emu 2016-2020 Toyota Tacoma 4x4 (2"- 6" lift) Front Differential Drop Kit by Revtek Front Strut Mounting Kit KYB SM5640 WHEELS & TIRES: Venomrex 602 17" X 9" -12 Offset Coal Black Venomrex Red Center Cap Inlay NITTO Ridge Grappler All-Season Radial Tire-LT285/70R17 C Rated Cab Mount Chop PERFORMACE: Toyota OEM Intake Flow Accelerator Mod Toyota OEM TRD Air Filter MBRP Cat-Back Exhaust System Single Side Exit 3" Black Series Toyota TSB Software Update (Transmission) LIGHTING: AUXITO H11 LED Headlight Bulbs 80W 16,000LM (High & Low Beam) Complete Interior LED Lighting Kit (Xenon White) NAKOBO White 29mm Festoon Led Bulb (Vanity Mirrors) XSPEED 7440 7441 T20 LED Light Bulbs XSPEED 921 912 906 W16W T15 LED Light Bulbs XSPEED 7443 7440 7444NA W21W T20 LED Light Bulbs CaliRaised Side Shooter Ditch Lights R4T Smoked White Grille Lights Meso Customs Ultimate Turn Signal CaliRaised LED 18W Slim Flood Work Lights (Roof Rack) DV8 Offroad BS20E100W5W BS-20 20" SL8 Slim Series LED Light Bar iJDMTOY Yellow Fog Lights CaliRaised LED 18W Slim Flood Work Lights (Bed Rack) STYLING & ACCESSORIES: TRD Pro Grille W/ OEM Garnish Sensor Cover N-Fab Textured Black Nerf Steps Coverking Neosupreme Seat Covers Full Front and Half Hood CHIPPROTECT by IDENS 30% Front Window Tint Toyota OEM TRD Skid Plate Toyota OEM Bed Mat Toyota OEM Bed Cleats Toyota OEM Door Sill Protectors Toyota OEM All-Weather Floor Mats Toyota OEM Blackout Emblem Overlay Kit Matte Black TRD Off-Road Decals Bed Net Organizer Storage Box Center Console Organizer EGR Matte Black In-Channel Vent Visors TAC Fender Flares Sprayed W/Line-X Smittybilt Smart Cover Tonneau Cover AJT Key Fob CaliRaised Low Profile Ditch Light Brackets BFP Heavy Duty Recovery Tow Hook (Painted In Super Red 2) TufSkinz Red Glove Box Insert Center Console Armrest Cover Cup and Console Liners 7" Screen Protector R4T Off-Road Badges Prinsu Design Cabrack Anti Glare Hood Vinyl Custom Rocker Panel Vinyl Mountain Graphics TacoVinyl Pro Grill Decal Pelican Vault V770 Case (2) Blacked Out Side Mirrors X-Bull Traction Board's DV8 Toyota Tacoma Center Mount Winch Capable Front Bumper OEdRo D Ring Shackles Mountain Hatch Tailgate Insert (Red) Toyota OEM Tailgate Power Lock Custom Tailgate Vinyl by IDENS Kentro License Plate Holder AJT Steering Wheel Overlay (Red) AJT Cup Holder Ring (Red) Meso Custom Door Handle Covers Prinsu Ridgeline Handles All-Pro Off-Road Bed Stiffeners Rek Gen Mud Flaps (Red Lettering) Original Quick Fists (2) 3" Quick Fist (2) RotopaX RX-DLX-PM Deluxe Pack Mount (2) RotopaX RX-1.75G Gasoline Pack RotopaX RX-2G Storage Pack First Alert Fire Extinguisher Bond LH043 Red Fiberglass Shovel Gzila Awning Mount Thule 4.5' Overcast Awning CaliRaised DItch Lights Switch CaliRaised Zombie Lights Switch Nexar NEXS1 Smart Dash Cam Ironman 4x4 Fridge Slide Frontrunner RTT QQuick Release Mounts
    I'll keep those items in mind when I run the fridge. Super helpful info! I appreciate you sharing what you are using. I will eventually add a second battery to the taco but for now I'll buy this battery pack.
     
    6 gearT444E likes this.

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