Anker SOLIX C300X

Name: Anker SOLIX C300X
Brand: Anker

Portable power station · Overall fit profile

The C300X (A1723) is a 288 Wh, 300 W unit with a 140 W bidirectional USB-C port; its 10 ms UPS claim requires wall AC and AC output to remain enabled.

Capacity288 Wh

AC output300 W

Surge600 W

Solar input100 W

Weight9.1 lb

Evidence: Manufacturer-controlled
Model: SOLIX C300X
Reviewed: 2026-10-22

At a glance

Bottom Line

The C300X (A1723) is a 288 Wh, 300 W unit with a 140 W bidirectional USB-C port; its 10 ms UPS claim requires wall AC and AC output to remain enabled.

Strengths

Practical advantages

Bidirectional USB-CAnker specifies a 140 W bidirectional USB-C port on this 288 Wh model.
AC charge to 80%The manufacturer states AC charging reaches 80% in 50 minutes; this is not a full-charge time.
Conditional UPS claimThe stated 10 ms mode requires wall AC to stay connected and AC output to be enabled.

Tradeoffs

Supported limitations

Solar connector and voltage limitsSolar input is capped at 100 W and requires an 11–28 V XT60 connection; PS30 and 5 V USB-C solar panels are unsupported.
No published full-charge timeThe reviewed US page gives an AC time to 80%, not a 0–100% charge duration.

Evidence gaps

What remains unknown

Battery cycle ratingThe reviewed C300X US page and guide do not state a numeric cycle count or capacity-retention percentage.
AC outlet detailsThe reviewed text does not establish the AC outlet count or pure-sine-wave operation; do not inherit either claim from the different C300 model.
Car-charging inputThe source documents the 12 V / 10 A car socket as an output and does not publish a car-charging input rating.

Best for