Portable power stations have quietly become the easiest way to keep a home running through an outage. You skip the installer, the permit, and the gas can: you charge the unit at home, and when the grid drops you plug in the essentials. This guide compares four popular LFP (lithium iron phosphate) models: the Jackery Explorer 2000 v2, the EcoFlow DELTA 3, the Anker SOLIX S2000, and the Pecron F1000LFP. Two are roughly 2 kWh units and two are roughly 1 kWh units, so price per kWh is the fairest way to compare them.
⚡ Quick Answer: The Anker SOLIX S2000 has the lowest street price per kWh (about $348) and the longest rated cycle life. The Pecron F1000LFP is the cheapest to buy (about $399) and the lightest. The Jackery Explorer 2000 v2 has the most capacity and output, and the EcoFlow DELTA 3 recharges fastest and is the only one built to expand to 5 kWh.
How Each One Works for Home Backup
All four are 120V, plug-in units. None of them replaces a whole-home battery or a 240V system, but all four can run the loads that matter most in an outage: refrigerator, freezer, Wi-Fi router, lights, phones, a CPAP, and a fan or small heater. As a rough guide, a modern refrigerator averages about 50 to 100 W over time because its compressor cycles on and off. After allowing for conversion losses, a 1 kWh unit covers roughly 9 to 17 hours of fridge runtime and a 2 kWh unit roughly 17 to 34 hours. Anker's own TÜV SÜD-certified lab test claims up to 35 hours on the S2000.
- Jackery Explorer 2000 v2: The most capacity (2,042 Wh) and the most output (2,200 W) of the group. It is the strongest pick for running a fridge plus a microwave, coffee maker, or space heater at the same time.
- EcoFlow DELTA 3: A smaller 1 kWh base that you can grow later with extra batteries up to 5 kWh. Its built-in UPS (switchover under 10 ms) keeps computers and network gear running through a blip, and it recharges from the wall in about an hour.
- Anker SOLIX S2000: A 2 kWh unit built around fridge backup. Its UPS switchover is 10 ms or less, and its 10,000-cycle battery rating suits a unit that may sit plugged in for years waiting for the next outage.
- Pecron F1000LFP: The budget, lightweight option. With about 1 kWh and a 1,500 W inverter, it covers essentials for several hours and is easy to carry between rooms or to a campsite.
Check each appliance's running watts and startup surge before relying on any of these. Large motor loads such as central air conditioners, well pumps, and electric dryers are beyond all four. If you want to feed a unit into your home's wiring through a transfer switch or inlet, have a licensed electrician do the work to local code, and never back-feed a panel through a dryer outlet.
Side-by-Side Comparison
The best value in each row is highlighted in green. On a phone or small tablet, each row becomes its own card so nothing gets squeezed.
| Feature | Jackery Explorer 2000 v2 | EcoFlow DELTA 3 | Anker SOLIX S2000 | Pecron F1000LFP |
|---|---|---|---|---|
| Capacity & Lifespan | ||||
| Total kWh | 2.04 kWh (2,042 Wh) | 1.02 kWh (1,024 Wh) | 2.01 kWh (2,010 Wh) | 1.00 kWh (1,004 Wh) |
| Expandable | No (per most reviews) | Yes, up to 5 kWh | None listed | No |
| Cycles | 4,000 cycles to 70% | 4,000 cycles to 80% | 10,000 cycles to 60% (6,000 to 80%) | 3,500+ cycles to 80% |
| Battery chemistry | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 |
| Warranty | 5 years (3 + 2) | 5 years | 5 years | 5 years (2 + 3) |
| Power & Charging | ||||
| Continuous / surge output | 2,200 W / 4,400 W | 1,800 W / 3,600 W (2,400 W with X-Boost) | 1,500 W / 3,000 W peak | 1,500 W / 3,000 W |
| Max solar input | 400 W | 500 W | 400 W | 600 W |
| Wall recharge (0 to 100%) | About 1.7 hours | About 56 minutes | About 1.7 hours (fast mode) | About 1.1 hours |
| Weight | 39.5 lb | 27.6 lb | 35.7 lb | 23.9 lb |
| Price & Value | ||||
| Retail (list) price | $1,499 | $699 | $1,199.99 (reported launch MSRP) | $499 |
| Current street price | About $799 | About $599 | About $699.99 | About $399 |
| Price per kWh (at list price) | $734 per kWh | $683 per kWh | $597 per kWh | $497 per kWh |
| Price per kWh (at street price) | $391 per kWh | $585 per kWh | $348 per kWh | $397 per kWh |
| Lifetime cost per kWh delivered | About $0.10 | About $0.15 | About $0.06 (about $0.03 at 10,000 cycles) | About $0.11 |
How we calculated it: price per kWh is price divided by base capacity (2.042, 1.024, 2.01, and 1.004 kWh). Lifetime cost is street price divided by capacity times rated cycles, and for the Anker we used its 6,000 cycles to 80% so the row is closer to the others. The cycle ratings use different end-of-life thresholds (60%, 70%, or 80% remaining capacity), so treat that row as a guide rather than a precise match. Prices are approximate as of October 27, 2026, come from retailer listings and price trackers, and change often. The Pecron's capacity is listed as 960 Wh on older pages and 1,004 Wh on newer ones; we used 1,004 Wh. "Jackery Explorer 2000" here means the Explorer 2000 v2, and "EcoFlow DELTA 3" means the 1,024 Wh base model, not the Plus, Max, or Ultra versions.
The Four Contenders in Detail
Jackery Explorer 2000 v2
Pros
- Highest capacity (2,042 Wh) and output (2,200 W, 4,400 W surge) of the four
- 4,000-cycle LFP battery with a 5-year warranty
- Fast wall recharge of about 1.7 hours
- Light for a 2 kWh unit compared with older 2 kWh models
- Street price around $391 per kWh
Cons
- Heaviest of the four at 39.5 lb
- Solar input limited to 400 W
- Not expandable, according to most reviews
- $1,499 list price is far above the typical selling price
The Explorer 2000 v2 is the most powerful unit here, and it is the one to pick if you want a single box that can run a refrigerator and a few heavier appliances at once. It pairs 2,042 Wh of LFP storage with a 2,200 W inverter, and Jackery rates the battery for 4,000 cycles to 70% capacity. At about $799 it works out to roughly $391 per kWh, and a wall recharge takes about 1.7 hours.
The compromises are weight and flexibility. At 39.5 lb it is the heaviest of the four, though it is notably lighter than Jackery's own Explorer 2000 Plus (about 61 lb), and solar charging is capped at 400 W, so a full solar refill takes much longer than a wall recharge. Most reviews also describe the battery as non-expandable, which matters if you expect your needs to grow. Because its list price is nearly double its common selling price, watch for sales before buying.
EcoFlow DELTA 3
Pros
- Fastest wall recharge: about 56 minutes from 0 to 100%
- Expands from 1 kWh up to 5 kWh with extra batteries
- X-Boost can run some loads up to 2,400 W
- UPS switchover under 10 ms and quiet operation
- 4,000 cycles to 80% and a 5-year warranty
Cons
- Highest price per kWh of the four ($585 at street price)
- Only about 1 kWh in the base unit, so runtime is short
- 500 W solar input on the base model
- Extra batteries add cost quickly
The DELTA 3 is built around speed and growth. EcoFlow says it charges from 0 to 100% in about 56 minutes from a wall outlet, which is the quickest of the four, and its 1,800 W inverter (3,600 W surge) can stretch to 2,400 W on resistive loads with X-Boost. It also has a sub-10 ms UPS switchover and runs quietly at light loads. The cell rating of 4,000 cycles to 80% is stronger than Jackery's 70% threshold and the Pecron's 3,500 cycles.
The catch is value. At about $599 for 1,024 Wh, the DELTA 3 costs roughly $585 per kWh, well above the Anker, Jackery, and Pecron. What you are paying for is the ecosystem: you can stack extra batteries up to 5 kWh, so it can start as an essentials unit and grow into longer multi-day backup. If you expect to expand, it makes sense. If you just want the most stored energy for the money today, the other three are better.
Anker SOLIX S2000
Pros
- Lowest street price per kWh (about $348)
- Longest rated life: 10,000 cycles to 60% (6,000 to 80%)
- 35.7 lb for 2 kWh, lighter than the Jackery
- UPS switchover of 10 ms or less
- 5-year warranty and up to 35 hours of fridge backup in Anker's lab test
Cons
- Only 1,500 W continuous output for a 2 kWh unit
- Solar input capped at 400 W
- No expansion listed
- New (launched May 2026) with little long-term track record
The S2000 is the value leader for anyone whose main goal is keeping the fridge and a few essentials running for as long as possible. Anker built it around 314Ah LFP cells rated for 10,000 cycles to 60% capacity (6,000 cycles to 80%), a figure well above the 3,500 to 4,000 cycles common in this class, and it weighs 35.7 lb. At around $699.99 it costs about $348 per kWh, the lowest of the four, and its lifetime cost per kWh delivered is the lowest too. Anker's lab test claims up to 35 hours of refrigerator backup, which is a function of both the 2,010 Wh battery and the unit's low idle draw.
The trade-off is raw output. The inverter is rated at 1,500 W continuous, which is lower than both the Jackery and the EcoFlow, so it will struggle with heavier appliances like a 1,800 W space heater or some microwaves. Solar input tops out at 400 W, and no expansion option is listed. It also launched only in May 2026, so the 15-year lifespan claim is a projection from cycle ratings rather than a field record. Anker's reported $1,199.99 MSRP has been heavily discounted since launch, so confirm the current price before you buy.
Pecron F1000LFP
Pros
- Lowest purchase price (about $399)
- Lightest at 23.9 lb, easy to carry
- Highest solar input (600 W) and 1,000 W AC charging, 0 to 80% in 50 minutes
- 1,500 W inverter with a 3,000 W surge rating
- Quiet, with an app and a 5-year warranty
Cons
- About 1 kWh means short runtime for a fridge (roughly 9 to 17 hours)
- Not expandable
- Fewest rated cycles (3,500+ to 80%)
- Less established US brand than Jackery, EcoFlow, or Anker
The F1000LFP proves how much capability now fits into an entry-level price. At about $399 it delivers 1,004 Wh of LFP storage, a 1,500 W inverter (3,000 W surge), 600 W of solar input, and 1,000 W of fast AC charging that takes it from empty to 80% in about 50 minutes. Pecron rates it around 25 dB under a 500 W load, so it is quiet enough to leave running indoors, and at 23.9 lb it is the easiest of the four to move. Its price per kWh (about $397) is close to the Jackery and only a little above the Anker.
The limitations are the ones you would expect at this size and price. With roughly 1 kWh of storage, it covers a refrigerator for only about half a day, and it cannot be expanded, so longer outages mean rationing loads or adding a second unit. Its 3,500-cycle rating is the lowest of the group, and Pecron has a shorter track record than the other three brands. It is best as an affordable starter backup for essentials, or as a portable unit for camping and travel.