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What size power station runs a phone / tablet charging?

Negligible — count on dozens of recharges from any unit.

12 Wrunning watts
startup surge
100%duty cycle
53 Whfor 4.0 h

Need to run it alongside other things? Add it to the full sizing tool with the rest of your load.

What size you need for 4.0 h

You need about 53 Wh — and 34 units fit. The smallest sufficient is the Goal Zero Yeti 200X; we never push more capacity than your load can use. Surge to clear: 12 W.
The math
Running watts (everything on at once) = 12 W
Surge watts (worst single startup + the rest running) = 12 W
Average draw (cyclic loads counted by their duty cycle) = 12 W
Watt-hours = 12 W × 4.0 h ÷ 90% usable reserve = 53 Wh
1
Goal Zero Yeti 200Xsmallest that fits
187 Wh 120 W cont · 200 W surge ~14 h on this load $$
A pocketable unit for phones, CPAP, and small electronics — premium build, small inverter.
NMC · ~4 h AC; up to 100 W solar · 5 lb
2
Jackery Explorer 240 v2step-up
256 Wh 300 W cont · 600 W surge ~19 h on this load $
A featherweight entry unit — phones, CPAP, laptops, lights through an evening.
LiFePO4 · ~1.5 h AC; up to 100 W solar · 8 lb
3
EcoFlow RIVER 2
256 Wh 300 W cont · 600 W surge ~19 h on this load $
Fastest-charging tiny unit; X-Boost stretches it to bigger resistive devices briefly.
LiFePO4 · ~1 h AC; X-Boost runs up to 600 W resistive · 8 lb
4
Bluetti EB3A
268 Wh 600 W cont · 1,200 W surge ~20 h on this load $
Punches above its size — a 600 W inverter in a tiny 268 Wh body for surgey small loads.
LiFePO4 · ~30 min to 80% AC; up to 200 W solar · 10 lb
5
Anker SOLIX C300
288 Wh 300 W cont · 600 W surge ~22 h on this load $
A compact LiFePO4 unit for CPAP and electronics with a long cycle life.
LiFePO4 · ~1.8 h AC; up to 300 W solar · 9 lb
6
Jackery Explorer 300 Plus
288 Wh 300 W cont · 600 W surge ~22 h on this load $
Compact LiFePO4 unit for small electronics and overnight CPAP.
LiFePO4 · ~2 h AC; up to 200 W solar · 8 lb
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Can a specific unit run a phone / tablet charging?

34 of the units we track deliver enough watts to run a phone / tablet charging. Check a specific one for the runtime and the full verdict:

Goal Zero Yeti 200X
187 Wh · 120 W cont
runs it
Jackery Explorer 240 v2
256 Wh · 300 W cont
runs it
EcoFlow RIVER 2
256 Wh · 300 W cont
runs it
Bluetti EB3A
268 Wh · 600 W cont
runs it
Jackery Explorer 300 Plus
288 Wh · 300 W cont
runs it
Anker SOLIX C300
288 Wh · 300 W cont
runs it
Goal Zero Yeti 500X
505 Wh · 300 W cont
runs it
EcoFlow RIVER 2 Max
512 Wh · 500 W cont
runs it
Jackery Explorer 500
518 Wh · 500 W cont
runs it
Goal Zero Yeti 700
677 Wh · 1,000 W cont
runs it
Bluetti EB70S
716 Wh · 800 W cont
runs it
EcoFlow RIVER 2 Pro
768 Wh · 800 W cont
runs it

Common questions

What size power station do I need to run a phone / tablet charging?

A phone / tablet charging draws about 12 W running (a resistive load, so no real startup surge). So you want a unit with at least 12 W continuous output. For 4.0 h of runtime that's roughly 53 Wh of capacity — the Goal Zero Yeti 200X is the smallest unit that clears all of it.

How many watts does a phone / tablet charging use?

About 12 W while running.

Sources: Phone / Tablet Charging wattage — Standard appliance-wattage / generator-sizing charts (representative values; verify your nameplate); station specs — manufacturer published specifications (compiled 2026-06-15; approximate). Informational only — a computed sizing estimate from published appliance-wattage charts and manufacturer station specs. It is not an electrical guarantee. For hardwired or whole-home backup, transfer switches, or any permanent install, consult a licensed electrician.