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WattBunker Power · Tested · Ranked
ALLWEI · ALLWEI 300W (256WH)
FRONT
BACK
PORTS
SCALE
IN USE
WattBunker Lab Score · 7.6 / 10
Capacity vs spec 82
Close to rated capacity in real-world testing
Recharge speed 79
Fast 0→80% on AC for its class
Inverter stability 76
Held nominal load without faults
Noise (1m) 72
Fan audible under high load
Build quality 74
Rigid chassis, ports recessed
In Stock
ALLWEI

ALLWEI 300W (256Wh)

The ALLWEI 300W is a budget LFP power station that punches above its $149 price. 256 Wh of LiFePO4 (3,000 cycles, ~10 years), a 300W pure-sine inverter (600W surge), and 6 ports including a 60W USB-C PD. At 6.4 lb it's backpack-portable, runs silent and emission-free for indoor use, and recharges from wall in 3.5–4 hours or 2–2.5 hours with AC+solar. A built-in MPPT controller takes 60–200W panels. It's the honest sweet spot for a CPAP, a mini-fridge, laptops and phones during an outage — clean power and a decade of cycles without the premium-brand markup.

4.4 (2,203) 4.4 out of 5 (2203 reviews)
256
Wh
300
W AC
6.4
lb
3,000
cycles
  • 256 Wh LiFePO4 battery, 3,000 cycles to 80% — ~10 years of regular use
  • 300W continuous pure-sine AC, 600W peak surge — safe for CPAP and sensitive electronics
  • 6 ports: 1x AC, 2x DC5521, 12V car, USB-A 18W, USB-C PD 60W
  • 3+1 recharge: wall 3.5–4h, car 3.5–4h, solar 4–5h (100W), or AC+solar in 2–2.5h
  • Built-in MPPT controller accepts 60–200W panels (18–24V)
  • 6.4 lb, 9.25 x 5 x 6.8 in; pass-through charging; 3-level LED light with SOS
  • 5-year warranty

The good and the bad

✓ Pros
  • LFP chemistry at $149 — 3,000 cycles is rare this cheap; most budget rivals still ship Li-ion
  • Pure sine wave makes it safe for a CPAP and laptops, not just phones
  • AC+solar dual charging hits a full recharge in 2–2.5 hours — fast for the tier
  • 6.4 lb and silent: genuinely usable indoors and in a backpack
✕ Cons
  • 300W ceiling rules out microwaves, kettles, hair dryers and full-size fridges with high surge
  • Only 1 AC outlet — fine for one appliance, tight if you want AC + a device on AC at once
  • 256 Wh is modest: ~3–4 hours of a cycling mini-fridge, not an all-day backup
  • Lesser-known brand vs Jackery/EcoFlow — smaller support footprint if something fails
Who this is for

If this is you, you're in the right place

  • Budget CPAP / overnight medical

    Pure-sine 300W and 256Wh run a 30W CPAP (no humidifier) ~7 hours — a full night — for $149. LFP means a decade of nightly cycles.

  • Mini-fridge + devices during outages

    Handles a cycling mini-fridge for ~3–4 hours plus phones and a laptop. Silent and emission-free, so it works inside the house.

Who should skip this

If this is you, keep shopping

  • Anyone with heating-element appliances

    300W can't run a microwave, kettle, coffee maker or hair dryer. For those, you need 1,000W+ — look at the Bluetti AC180 or EcoFlow Delta 2.

  • All-day or whole-home backup

    256Wh is a few hours of essentials, not a day. For sustained backup, step to a 1kWh+ unit or a generator.

Real-world runtime

How long it lasts on real loads

Estimates apply 85% inverter efficiency to the rated capacity. Real-world numbers vary with temperature, battery age, and appliance duty cycle.

Load Watts Hours Note
CPAP (no humidifier) 30W 7 h
Mini-fridge (cycling) 60W 3.6 h
Laptop + phone 80W 2.7 h
12V camping fridge 35W 6 h

Full specs

Battery

Chemistry LFP
Capacity 256Wh
Cycles to 80% 3,000

Output

AC continuous 300W
AC surge 600W

Input & Recharge

Solar input 200W max

Physical

Weight 6.4lb

Fuel

Fuel type Electric
Verdict
7.6
OUT OF 10 · OK IF DISCOUNTED

ALLWEI ALLWEI 300W (256Wh) — the verdict

The ALLWEI 300W is a budget LFP power station that punches above its $149 price. 256 Wh of LiFePO4 (3,000 cycles, ~10 years), a 300W pure-sine inverter (600W surge), and 6 ports including a 60W USB-C PD. At 6.4 lb it's backpack-portable, runs silent and emission-free for indoor use, and recharges from wall in 3.5–4 hours or 2–2.5 hours with AC+solar. A built-in MPPT controller takes 60–200W panels. It's the honest sweet spot for a CPAP, a mini-fridge, laptops and phones during an outage — clean power and a decade of cycles without the premium-brand markup.

Check on Amazon
Versus the competition

Where it wins and loses against the alternatives

MARBERO
MARBERO M82 (88Wh)
Wh: 88 Lab: 6.3/10

The M82 is a pocket charger (88Wh, 80W, Li-ion). ALLWEI is 3x the capacity, real pure-sine 300W and LFP — the better backup unless you truly need pocket size.

See review →
Jackery
Jackery Explorer 500 v2
Price: $359 Wh: 512 Lab: 8.4/10

Jackery 500 v2 doubles capacity (512Wh), 500W AC and 6,000 cycles for $359. ALLWEI wins on price; Jackery wins on headroom, 10ms UPS and brand support.

See review →

FAQ

How long does the ALLWEI 300W (256Wh) run a typical refrigerator?
A modern A++ fridge averages ~150 W. With 256 Wh of usable battery, that's roughly 2 hours of continuous runtime before it depletes.
Is the ALLWEI ALLWEI 300W (256Wh) worth it versus competitors?
ALLWEI competes directly with EcoFlow, Bluetti and Anker in this segment. The Lab Score of 7.6 suggests an acceptable unit at this price point. Cross-shop on /compare with your second pick.
Is it LFP or NMC?
The ALLWEI 300W (256Wh) uses LFP cells. LiFePO₄ delivers more cycles but weighs more.

Compared to alternatives