Duracell M250

Last updated: October 20, 2026

Duracell M250
2.7/5#24 of 24 in small power stations
2.7

For people who want a tidy desk or bedside battery for phones and laptops, with wireless charging and a small AC outlet. Anyone who needs to run appliances should buy a conventional power station.

  • 219 WhCapacity
  • 100 WAC output
  • 4.5 lbWeight
  • Li-ion NMCBattery
  • 3 h 30 minFull charge
  • $1.14Price / Wh
Check price at Amazon$249Check price at Duracell$249

Price checked October 20, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Tilting lid charges a phone wirelessly while holding it up for video calls
  • 100W USB-C charges a laptop at full speed
  • Desk-friendly 4.5 lb cylinder with a charging dock and built-in ring light
Cons
  • AC outlet gives only 100W of modified sine wave, unsuitable for some electronics and motor loads
  • NMC battery rated for only 500 cycles, with a two-year warranty
  • Costs over $1.10 per watt-hour
  • No car outlet, no UPS function and no independent capacity test

How it scores

The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Specifications

Battery
Rated capacity219 Wh
ChemistryLi-ion NMC
Cycle life500 to 80%
ExpandableNo
Output
AC output100 W
AC outlets1 total
120V 2-prong outlets (NEMA 1-15R)1
AC waveformModified sine wave
USB-C ports2 (up to 100 W each)
USB-A ports2
12 V car outletNo
DC5521 ports0
UPS / pass-throughNo
Charging
Full AC charge time3 h 30 min (About 3.5 h from a USB-C wall charger, about 5.5 h on the included 60W charging dock (manufacturer); Amazon listing says 3 h by USB-C)
Build
Weight4.5 lb (2 kg)
Dimensions5.0 in diameter x 10.4 in tall
AppFalse
Warranty2 years

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