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ALLPOWERS R4000 Review
3,456Wh of storage, 3,600W continuous output, LiFePO4 cells. Listed at $1,899 at ALLPOWERS.
The ALLPOWERS R4000 is a extra large 2,600wh+ unit holding 3,456Wh. At $0.55 per watt-hour it is priced about where the rest of the band sits. It uses LiFePO4 cells rated for 3,500 cycles, so it is built to be kept rather than replaced. It lists at $1,899 against an $3,299 MSRP.
Manufacturer price at the time of writing. We may earn a commission, which never changes what the figures say.
Computed from this unit’s published specification, not from a manufacturer claim. Method and the full catalogue comparison are in our power station price index.
What the ALLPOWERS R4000 will run, and for how long
Runtimes below are calculated from the 3,456Wh rated capacity, derated to 85% for AC loads and 92% for USB and 12V loads to cover inverter and conversion losses. They are arithmetic, not lab measurements, but they are the same arithmetic applied to every unit we track, so the comparison holds. Anything drawing more than the 3,600W continuous rating is left off the list because this unit cannot carry it, though the 6,000W surge rating covers brief startup spikes from motors and compressors.
| Load | Estimated runtime |
|---|---|
| Phone charge (12Wh) | 264 charges |
| Wi-Fi router (10W) | 294 hr |
| LED work light (10W) | 318 hr |
| CPAP, humidifier off (40W) | 73 hr |
| Laptop (60W) | 49 hr |
| 12V portable fridge (45W avg) | 65 hr |
| 55-inch TV (90W) | 33 hr |
Real figures land below these. A fridge cycles rather than drawing continuously, and cold weather costs a lithium pack usable capacity, so treat the table as the ceiling rather than the expectation.
Charging and power delivery
Maximum solar input is 2,000W. At 70% of that rating, which is what a fixed panel realistically delivers across a good day, a full charge from empty is roughly 2 hr 28 min of usable sun.
ALLPOWERS R4000 specifications
Manufacturer figures, gathered so you can read them against everything else we track rather than against the marketing page they came from.
| Capacity | 3,456Wh |
| Continuous AC output | 3,600W |
| Surge / peak | 6,000W |
| Cell chemistry | LiFePO4 |
| Rated cycle life | 3,500 cycles |
| Weight | 99.2 lb |
| Max solar input | 2,000W |
| Warranty | 5 years |
| Price at ALLPOWERS | $1,899 |
| Cost per watt-hour | $0.55 |
How the ALLPOWERS R4000 compares
The closest units we track from other manufacturers in the same band, matched on capacity rather than on price.
| ALLPOWERS R4000 | BLUETTI Elite 400 | EcoFlow DELTA 3 Ultra Plus (3072Wh) | |
|---|---|---|---|
| Capacity | 3,456Wh | 3,840Wh | 3,072Wh |
| Output | 3,600W | — | 3,600W |
| Cycle life | 3,500 cycles | — | — |
| Weight | 99 lb | — | — |
| Price | $1,899 | $1,299 | $1,599 |
| Cost per watt-hour | $0.55 | $0.34 | $0.52 |
Where the ALLPOWERS R4000 sits in its band
We track 19 units in the extra large 2,600wh+ band with both a price and a published capacity. They run from $799 to $5,998.95, and from 1,536Wh to 5,120Wh. On cost per watt-hour the ALLPOWERS R4000 ranks 12 of 19, where 1 is the cheapest capacity in the band. That is mid-table: neither the bargain of the band nor the unit you would call overpriced. Ranking on cost per watt-hour deliberately ignores build quality, port selection and warranty, so read it as one input rather than as the answer.
Alternatives to the ALLPOWERS R4000
Units we track in the same band that are close enough to be genuine substitutes, matched on capacity. Each links to its own review.
- BLUETTI Elite 400 review — 3,840Wh, listed at $1,299, $0.34 per watt-hour, cheaper capacity than the ALLPOWERS R4000.
- EcoFlow DELTA 3 Ultra Plus (3072Wh) review — 3,072Wh, 3,600W output, listed at $1,599, $0.52 per watt-hour, cheaper capacity than the ALLPOWERS R4000.
- EcoFlow DELTA 3 Ultra Series (3072Wh) review — 3,072Wh, 3,600W output, listed at $1,399, $0.46 per watt-hour, cheaper capacity than the ALLPOWERS R4000.
- Pecron E3600LFP 3600W 3072Wh review — 3,072Wh, 3,600W output, listed at $999, $0.33 per watt-hour, cheaper capacity than the ALLPOWERS R4000.
Who the ALLPOWERS R4000 suits
It is a sensible buy for whole-circuit backup, extended off-grid stays, and running heavy appliances without rationing them. It is the wrong tool for anyone who needs something genuinely portable, since capacity at this level comes with real weight, and for carrying it any distance on your own, at 99.2 lb.
ALLPOWERS R4000 questions
How long will the ALLPOWERS R4000 run a fridge?
A full-size fridge averages about 50W once you account for the compressor cycling on and off. From 3,456Wh, derated to 85% for inverter losses, that is roughly 59 hr on a full charge. A 12V portable fridge draws less and will run considerably longer.
Can the ALLPOWERS R4000 be charged by solar?
Yes. It accepts up to 2,000W of solar input. Panels rarely hit their rated figure in the field, so plan on about 70% of the panel rating across a clear day.
What warranty does the ALLPOWERS R4000 carry?
ALLPOWERS covers it for 5 years, and rates the cells for 3,500 charge cycles. Cycle life and warranty are different promises, and the cycle figure is the one that tells you how long the pack stays useful.
Is the ALLPOWERS R4000 worth it?
At $1,899 it works out at $0.55 per watt-hour. It costs more per watt-hour than the median unit in its band, so the case for it rests on the features rather than on the price. Read the comparison table above against the two closest rivals before deciding.
How we assess these
Every figure on this page comes from the manufacturer, and every derived number, cost per watt-hour and estimated runtime, is calculated the same way for all 437 products we track. That is what makes the comparison meaningful: we are not scoring units against a private impression of them, we are putting published figures side by side and doing the arithmetic in public. Where a manufacturer stays quiet, we say so rather than filling the gap.