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ALLPOWERS R3500 Home Backup Review

3,168Wh of storage, 3,200W continuous output, LiFePO4 cells. Listed at $1,424 at ALLPOWERS.

The ALLPOWERS R3500 Home Backup is a home backup systems unit holding 3,168Wh. At $0.45 per watt-hour it is priced about where the rest of the band sits. It uses LiFePO4 cells, so it is built to be kept rather than replaced. This model is discontinued, so stock is whatever is left in the channel. It lists at $1,424 against an $2,099 MSRP.

Manufacturer price at the time of writing. We may earn a commission, which never changes what the figures say.

What the numbers work out to
$0.45
per watt-hour
Purchase price divided by rated capacity. The standard way to compare cost across sizes.
34.1
Wh per pound
Energy density. What decides whether you will actually carry it.

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 R3500 Home Backup will run, and for how long

Runtimes below are calculated from the 3,168Wh 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 3,200W continuous rating is left off the list because this unit cannot carry it, though the 4,000W surge rating covers brief startup spikes from motors and compressors.

LoadEstimated runtime
Phone charge (12Wh)242 charges
Wi-Fi router (10W)269 hr
LED work light (10W)291 hr
CPAP, humidifier off (40W)67 hr
Laptop (60W)45 hr
12V portable fridge (45W avg)60 hr
55-inch TV (90W)30 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

It accepts 1,500W from a wall outlet. 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 16 min of usable sun. Switchover to battery is rated at 15ms, fast enough to keep a desktop or a router from dropping.

ALLPOWERS R3500 Home Backup specifications

Manufacturer figures, gathered so you can read them against everything else we track rather than against the marketing page they came from.

Capacity3,168Wh
Continuous AC output3,200W
Surge / peak4,000W
Cell chemistryLiFePO4
Weight93 lb
Max solar input2,000W
Max AC input1,500W
UPS switchover15ms
Warranty5 years
Price at ALLPOWERS$1,424
Cost per watt-hour$0.45

How the ALLPOWERS R3500 Home Backup compares

The closest units we track from other manufacturers in the same band, matched on capacity rather than on price.

  ALLPOWERS R3500 Home Backup Jackery HomePower 3000 OUPES Titan 3 Home Backup &
Capacity 3,168Wh 3,072Wh 3,072Wh
Output 3,200W 2,400W 3,600W
Cycle life 4,000 cycles 3,500 cycles
Weight 93 lb 60 lb
Price $1,424 $1,399 $1,099
Cost per watt-hour $0.45 $0.46 $0.36

Put it head to head →

Where the ALLPOWERS R3500 Home Backup sits in its band

We track 21 units in the home backup systems band with both a price and a published capacity. They run from $489 to $10,999, and from 1,024Wh to 20,000Wh. On cost per watt-hour the ALLPOWERS R3500 Home Backup ranks 9 of 21, 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 R3500 Home Backup

Units we track in the same band that are close enough to be genuine substitutes, matched on capacity. Each links to its own review.

Who the ALLPOWERS R3500 Home Backup 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 93 lb.

ALLPOWERS R3500 Home Backup questions

How long will the ALLPOWERS R3500 Home Backup run a fridge?

A full-size fridge averages about 50W once you account for the compressor cycling on and off. From 3,168Wh, derated to 85% for inverter losses, that is roughly 54 hr on a full charge. A 12V portable fridge draws less and will run considerably longer.

Can the ALLPOWERS R3500 Home Backup 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.

Does the ALLPOWERS R3500 Home Backup work as a UPS?

It switches to battery in about 15ms. That is quick enough for a desktop computer, a router or a modem, all of which tolerate a gap in that range without rebooting.

What warranty does the ALLPOWERS R3500 Home Backup carry?

ALLPOWERS covers it for 5 years. 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 R3500 Home Backup worth it?

At $1,424 it works out at $0.45 per watt-hour. It costs less per watt-hour than the median unit in its band, which is the strongest argument in its favour. Read the comparison table above against the two closest rivals before deciding.

What is not published

ALLPOWERS does not state the rated cycle life for this model. We list figures rather than estimate them, so those rows stay empty until the manufacturer publishes them. If you need one of them to make the decision, ask ALLPOWERS directly and hold them to the answer.

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.

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