We Compared 4 Portable Power Stations for Power Tools

Most power station buying advice starts with capacity. For tools that is the wrong end of the problem. A unit that cannot start the saw is useless no matter how big its battery is, and this is the unit in the shortlist least likely to fail that test.

What the surge number has to cover#

A universal motor tool draws roughly two to three times its nameplate rating in the fraction of a second the armature spins up. Take a common 7-1/4 inch circular saw at about 1400W while cutting. The momentary ask is somewhere between 2800W and 4200W.

The Yeti 1500 publishes 2000W continuous and 3600W surge. That covers the middle of that band with margin, and it does so as a plain surge rating rather than a voltage-lowering assist mode. Two of the other units here publish a single flat continuous figure with no separate peak at all, which tells you nothing about the first half second.

The Generac GB2000 publishes a higher-sounding 3200W peak, but only 1600W continuous underneath it. Once the saw is actually cutting, that 400W difference is the one you live with.

Cycle life is the specification trades should read first#

Rated at 4,000 cycles, and assuming a working year of roughly 250 days with one full charge and discharge each day, this pack lasts about sixteen years on paper. The Generac’s 1,000-cycle NMC rating works out to about four years on the same assumption.

That is not a small difference for something bought as a tool. It is the gap between an asset that outlives the van and a consumable.

Where the weight argument turns against it#

At 1505Wh and 52.9 lb, this unit stores 28.4 watt-hours for every pound you carry. The Jackery Explorer 2000 v2 stores 51.7. In practice you are lifting 13.4 extra pounds to get 537Wh less.

If the unit lives in one place all day, that is a trade worth making for the inverter. If it goes up a ladder, into a loft and back to the van twice before lunch, it is not.

What a full day looks like#

Assume a saw pulling 1400W with the trigger down 12 minutes in every hour. That is 280Wh an hour, and 1505Wh covers about 5.4 hours of that pattern. A framing day runs past it.

Switch to a finishing pattern, mostly cordless battery charging and lights, and the picture flips. Allowing 110Wh at the wall per full 5.0Ah pack including charger losses, this unit refills about 13 packs and still has room for a work light.

Every other unit in this guide asks you to choose between reserve and portability. This one mostly refuses the question, and that is the whole reason it is here.

The ratio that decides the day#

Divide capacity by weight and the shortlist splits cleanly. This unit stores 51.7 watt-hours for every pound. The Generac GB2000 manages 43.2, the EcoFlow DELTA 3 Plus 37.9, the Goal Zero Yeti 1500 just 28.4.

Put concretely: against the Yeti you get 537Wh more energy while carrying 13.4 lb less. On a second-floor bathroom remodel where the unit follows you around, that is the specification you feel every hour.

What 2042Wh buys in tool time#

Assume a 1500W miter saw with the trigger down 10 minutes in every hour. That is 250Wh an hour, and the pack covers roughly eight hours of that pattern. This is one of only two units here that genuinely finishes a working day of intermittent cutting on a single charge.

Shift to cordless battery charging and it goes further. Allowing 110Wh at the wall for a full 5.0Ah pack including charger losses, 2042Wh refills about 18 packs.

The number that is missing#

The specification quotes 2200W continuous and stops there. There is no peak, no surge, no assist mode.

That is not automatically bad, because a flat rating is at least honest. But a circular saw asking two to three times its 1400W nameplate for half a second is requesting 2800W to 4200W, and 2200W of documented continuous output does not tell you how the inverter reacts. If your work is drills, drivers, a track saw and lighting, this is a non-issue. If it is a compressor, buy the surge rating instead.

The port panel is the real constraint#

Three AC outlets and a single 100W USB-C is a spread built for a person, not a crew. Two battery chargers and a work light already fills it.

The Yeti 1500 publishes four AC outlets and six USB outlets for a reason. If three people share one power station, that difference costs you a power strip and an extension lead every morning.

The other three units in this guide try to store enough energy to outlast the day. This one takes the opposite approach. It stays small, stays light, and gets most of the way back so quickly that the small pack stops being the constraint, as long as there is somewhere to plug it in.

Half the weight of the Yeti, most of the inverter#

Twenty-seven pounds is the difference between a unit you move and a unit you leave where it is. Against the Yeti 1500’s 52.9 lb, you are carrying roughly half the weight and still getting 1800W of inverter.

Expressed as inverter watts per pound, this unit delivers 66.7. The Jackery Explorer 2000 v2 manages 55.7, the Yeti 37.8, the Generac GB2000 32.8. If your day involves stairs, lofts, scaffolding or a van door, that ratio is the specification you will notice first.

What a 40-minute charge is worth in practice#

Eighty per cent of 1024Wh is 819Wh, delivered in 40 minutes. That is an average input of about 1228W.

Give it a normal 45-minute lunch break and the whole 0-to-80% window fits inside it with five minutes spare, so a flat pack comes back to 819Wh. Charging past 80% tapers on every unit here, which is why that is the figure to plan against rather than a straight-line extrapolation to full. Compare it to the Generac, whose 3.3 hours to 80% works out to about 511W average, returning under 400Wh in the same window. The Generac holds twice the energy but recovers under a fifth of itself while you eat.

That is the trade this unit is built around, and it works only if the outlet exists.

Where the arithmetic runs out#

At 1024Wh, a 1400W saw cutting 12 minutes an hour averages 280W and empties it in about 3.7 hours. That is a morning, not a day.

Two things fix that. An expansion battery takes the system to 5kWh, though you are then carrying two boxes and the weight advantage is gone. Or you accept the tether and plug in at every break. Neither works on a bare site.

The headroom question#

The specification quotes a flat 1800W. A 1500W miter saw sits 300W under that before you account for the start-up spike, and there is no published peak rating to tell you what happens in that first half second.

For drills, drivers, a multi-tool and lighting that is plenty. For a compressor, read the Yeti’s 3600W surge rating instead.

Judged as one box this unit loses to everything else in the guide. Judged as half of a system it wins outright, and that split is the whole decision.

Why the parallel figure changes the argument#

A single GB2000 gives 1600W continuous. That runs a 1500W miter saw and almost nothing else. Add a second unit and the 30A parallel kit and the specification moves to 4212Wh and 3200W continuous.

Three thousand two hundred watts is the number that matters. It covers a 1500W saw and a 1400W compressor running at the same time with about 300W to spare, and it does so as continuous output rather than a momentary peak. No single unit in this shortlist reaches that. The Jackery Explorer 2000 v2 tops out at 2200W, the Goal Zero Yeti 1500 at 2000W continuous.

The only unit you can plan solar around#

Of the four products here, this is the only one that publishes a maximum solar input at all: 468W.

That sounds like a small detail until you are on a bare lot with no temporary power. The other three units in this guide give you no figure to size an array against, which means the only honest refill plan for them is a mains outlet or a van. A published 468W ceiling lets you buy panels with intent.

The chemistry bill comes due#

This is an NMC pack rated at 1,000 cycles to 80%, and that is the specification that should give a trade buyer pause.

Assume roughly 250 working days a year and one full charge and discharge each day. That rating is about four years. The Goal Zero Yeti 1500 and the EcoFlow DELTA 3 Plus are both rated at 4,000 LiFePO4 cycles, which on the same assumption is around sixteen. For a tool bought to be used daily, that is the difference between replacing it once and never replacing it.

Charging is slow enough to change how you work#

Eighty per cent of 2106Wh is 1685Wh in 3.3 hours, an average of about 511W.

Over a 45-minute break that is under 400Wh, under a fifth of the pack. The DELTA 3 Plus completes its entire 819Wh 0-to-80% charge in the same window. This unit is not designed to be topped up between tasks. It is designed to be charged overnight and to hold enough that it does not need topping up.