PSA
StationArena

Solar · Anker

Solar panels for the Anker SOLIX C300

Written by Ian Schneider·Solar & Off-Grid Tester

Anker gave the C300 a solar port and then told it not to get greedy. 100 W, 11 to 28 volts. Twenty-two of the forty-one panels we track push more than 28 volts, four of them Anker's own. The C300's charge controller is not built to take that.

The thirteen that stay under all do the same thing once they're plugged in. The port caps them at 100 W, and at 100 W the battery is full in about three hours of good sun. For a weekend at the cabin, one 100 W folding panel is all I'd bother carrying.

The door
11–28 V
Its width
100 W
Plug
XT60
Full battery, best case
~2.9 h
Anker SOLIX C300 portable power station
Anker prints the limits right next to the port. Worth a look before the panel goes in.

The door

Every panel we track, lined up at the SOLIX C300's solar input

Every panel we track, lined up by the voltage on its label. That number is the open-circuit voltage, Voc on the sticker, which is what a panel puts out with nothing connected to it. The black line is 28 V. Anything reaching above it stays in the box.

The pale cap on each bar is the extra voltage a cold morning adds. That cap is the part I'd test myself. A panel that reads 24 V in September reads 26 or so on my deck in January. Still under 28. Closer than I'd like.

Hover a bar for the panel's name. If you already own one, type its Voc below and it joins the line.

Swipe sideways for the whole line-up.

010203040506070volts, open-circuit1+++2yours?28 V · the lintel11 V · the step

Hover or tap a bar for the panel’s name and its verdict.

  • Fits through the door
  • Too tall
  • Extra height on a −10 °C morning
  • Maker prints only the operating voltage; the real height is above the dashes
  • 1Our pick: Renogy 200W Portable Solar Panel Blanket
  • 2Anker SOLIX PS200, the one that ships with the C1000

What we'd buy

The best solar panel for the SOLIX C300

Picked by the numbers on this station, not by brand.

Best overall

Renogy 200W Portable Solar Panel Blanket (RPP200SB-SE)

One panel delivers 100 W, the most the input takes.

Check price at Renogy

A day on solar

How long the SOLIX C300 takes to charge on solar

About three hours. That's with the input full, which any of the thirteen can manage. One 100 W panel on its own gives closer to 72 W in real sun and takes about four hours.

A good day has three to six hours of sun that strong. The full-input setup fills the C300 in a day. One 100 W panel might need two if the day is short. Where you live and what month it is decide how many of those days you get. The system builder works that out for your state.

a good day's sun: 3 to 6 h0 h1 h2 h3 h4 h5 h6 hInput full (100 W) · one 200 W panel · full in 2.9 hOne 100 W panel (72 W delivered) · full in 4 h

Hours of good sun, from empty. Where you live and the month decide how many of those a day gives; the system builder works it out.

Every panel that fits

Solar panels compatible with the SOLIX C300

Thirteen fit. For each one: the cable it needs, what a single panel delivers in good sun, and the most the C300 will take from a set of them. Sorted by delivered watts.

Too tall

Solar panels that won't work with the SOLIX C300

These aren't bad panels. Most were built for stations with 60 V inputs, and on those they're fine. On the C300 the controller would see more voltage than it's rated for, in some cases double.

A few only fail on a cold morning. The Jackery SolarSaga 100 Light reads 24.8 V on the label, but Jackery allows 5% either way and cold adds about 10% on top. I wouldn't risk it either.

Over the 28 V lintel (22)

No verdict (6): the maker doesn't publish an open-circuit voltage

Own a panel that isn't in the line-up?

Type its voltage into the door chart above for the height test, then put the rest of the label into the panel checker, already set to the SOLIX C300, for current and plug too. Or build the whole system to see how it keeps up where you live.

The plain answers

How long does the SOLIX C300 take to charge on solar?

One 100 W panel delivers about 72 W in good sun and refills the 288 Wh battery from empty in about 4 hours.

One 200 W panel delivers about 100 W in good sun and refills the 288 Wh battery from empty in about 2.9 hours.

At its 100 W solar limit it refills in about 2.9 hours. More panel watts than that won't charge it any faster.

A day gives three to six hours of sun that good, depending on season and place, so one 100 W panel takes 1 to 2 days to fill it. The system builder works it out for your state and month.

What adapter does the SOLIX C300 need for solar?

Every panel we track needs a cable to reach its XT60 input. None comes in the box.

The cables they need: MC4 to XT60 (6 panels), DC8020 to XT60 (1 panel) and Anderson to XT60 (1 panel).

5 panels don't have a named plug from their maker, so check the lead before you buy a cable.

Can you use non-Anker solar panels with the SOLIX C300?

Yes. What decides it is the panel's voltage and plug, not the brand. 13 panels from BLUETTI, Eco-Worthy, EcoFlow, Jackery, Renogy and Rich Solar work with it, as long as the panel stays under 28 V on a cold morning and starts above 11 V.

The strongest single panels here are the BLUETTI PV200 (100 W delivered) and the Eco-Worthy 195W N-Type 18BB Bifacial (100 W delivered).

Can you connect two solar panels to the SOLIX C300?

Yes, joined into one input with a series or parallel cable.

Don't wire two BLUETTI SP100L panels in series: together they would pass its 28 V limit. Parallel them instead.

Past 100 W delivered, more panels only help on cloudy days.

What is the SOLIX C300's solar input?

Solar Input and Car Input (spec row: "Solar Panel Input"): 11–28 V, up to 8.2 A, 100 W.

Input limits from Anker's documents, checked 2026-09-18 (source). Delivered watts assume 72% of the panel's rating in good sun.