Power & Electrical

Power stations, solar panels and 12V fridges, sized with actual math. How many watt-hours you really need, what a fridge really draws, and which box to buy once.

DC-DC charger on a bracket beside a battery box in a vehicle cargo area, fused cable running forward

What Size DC-DC Charger for a 100Ah LiFePO4? 20A, 30A, 40A or 50A (The Alternator Decides, Not the Battery)

A 100Ah lithium battery will take more current than any of these chargers can give it. What sets the size is the alternator behind it, the cable in front of it and how many hours you drive between camps. The charge times, the input draw and the cable table, from the makers’ own sheets.

What Size DC-DC Charger for a 100Ah LiFePO4? 20A, 30A, 40A or 50A (The Alternator Decides, Not the Battery) Read More »

Power station, 12V fridge and a battery box on a pickup tailgate at a lakeside camp

Dual Battery vs Power Station for a 12V Fridge: Which One You Need (It Comes Down to How You Recharge)

A 1,000Wh power station and a 100Ah lithium second battery both hold two and a half to three days of fridge. From the dash socket the station needs nine hours of driving to get two of those days back. Wired, either one needs under two. Which to buy, by how you camp.

Dual Battery vs Power Station for a 12V Fridge: Which One You Need (It Comes Down to How You Recharge) Read More »

A portable power station cabled to a 12V fridge on a tailgate beside a mountain lake at dusk

Will a Goal Zero Yeti Run a 12V Fridge? A Day, a Weekend or Four Days (Yeti 500, 700, 1500)

Yes, and the 12V side is the reason to buy one: 13.5V regulated ports and no timer waiting to switch the fridge off. The math gives a Yeti 500 about 27 to 36 hours, a Yeti 700 37 to 49 and a Yeti 1500 81 to 108 in mild weather. Nobody has published a fridge test on any of the three, so the table shows its working, including what Goal Zero’s own 3+ days claim assumes.

Will a Goal Zero Yeti Run a 12V Fridge? A Day, a Weekend or Four Days (Yeti 500, 700, 1500) Read More »

A small portable power station cabled to an open 12V compressor fridge on a pickup tailgate at a forest campsite at dusk

Will an EcoFlow River 3 Run a 12V Fridge? One Night, Not a Weekend (River 3 and 3 Plus)

Yes, for one night. A River 3 holds 245Wh and a River 3 Plus 286Wh, and a compressor fridge uses 300 to 500Wh a day, so the math gives 13 to 21 hours on the 12V port and about half that on the AC outlet. Nobody has published a fridge test on either unit, so the table shows its working. Which of the two to buy, what refills it, and when to buy bigger.

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Power station, folding solar panel and 12V fridge on a pickup tailgate at desert sunset

Will an Anker SOLIX C1000 Run a 12V Fridge? Real Runtime for the C1000 and C1000 Gen 2

Yes. A C1000 Gen 2 runs a 45L compressor fridge for roughly 38 to 56 hours on its 12V socket, going by the 844Wh a reviewer measured out of that socket and what owners meter at the fridge. The runtime table for both generations, why the AC outlet costs a third or more of the battery, and the app setting that switches the socket off after five quiet hours.

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Power station and 12V fridge in the back of an SUV at a forest camp at dusk

Will a Bluetti AC70 Run a 12V Fridge? Real Runtime for the AC70 and AC180

Yes. The AC70 runs a 45L compressor fridge for roughly 30 to 45 hours on its 12V port and the AC180 for 45 to 66, going by what reviewers measured out of the port and what owners meter at the fridge. The runtime table, why the AC outlet costs a third of the battery, and the ECO setting that ships switched on and turns a quiet fridge off overnight.

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12V fridge open on a pickup tailgate at a desert camp

Will a Jackery Explorer 1000 Run a 12V Fridge? Real Runtime for the 1000 v2 and 1000 Plus

Yes, and for longer than the spec sheet implies if you use the 12V port. The Explorer 1000 v2 runs a 45L compressor fridge for roughly two to three days in mild weather and about a day and a half in real heat; the 1000 Plus adds about 18% to that. The runtime table, the formula behind it, why the AC outlet costs you a third of the battery, and the two settings that stop the fridge shutting off at 3 AM.

Will a Jackery Explorer 1000 Run a 12V Fridge? Real Runtime for the 1000 v2 and 1000 Plus Read More »

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