PSA
StationArena

Solar · BLUETTI

Solar panels for the BLUETTI EP500

Written by Ian Schneider·Solar & Off-Grid Tester

BLUETTI's manual answers the panel question for the EP500 with a recipe: four to six SP200 panels in series. The recipe is there because the solar input will not start on fewer. Its window is 55 to 145 volts, and no panel we track reaches 55 on its own. The tallest, Renogy's 590 W rigid, reads 52.63 on the label. Most folding panels on our list print a figure in the twenties. One panel on the cable charges nothing. Wire panels in series, the lead from one into the next, and the voltages stack. The station sees the total, and the total clears the floor.

Thirty-one of the forty-one panels we track publish a voltage, five of them BLUETTI's own, and all thirty-one fit once they are in a chain. Behind the socket is 5120 Wh and one MPPT, the charge controller that works a string for its best output, rated for 1,200 W and 20 amps. Three sets we can build fill that. Four Jackery SolarSaga 500 X folders, four Anker SOLIX 440W Rigids, or four of Renogy's 590 W rigids. Any of the three has the battery full in a little over four hours of good sun. Four of BLUETTI's own PV200 folders deliver 576 W and need about nine hours.

At 167 pounds the EP500 is furniture. At the cabin it would stand wherever the delivery crew set it down, and the panels would come to it on one lead. The cable in the box is an MC4-to-Aviation lead. MC4 is the weatherproof snap-together plug most panels end in. Aviation is BLUETTI's name for the round four-pin plug at the other end, and it goes into the middle socket, which the manual calls CP2. I'd run four panels as the manual suggests and watch where the pine shadows land, since a shadow across one panel in a series chain slows the whole chain.

The door
55–145 V
Its width
1200 W
Plug
Aviation
Full battery, best case
~4.3 h
BLUETTI EP500 portable power station
Roof panels taller than this socket allows need BLUETTI's PV Step Down Module, sold separately. The manual rules it out for panels with built-in microinverters and for any string over 550 V.

The door

Every panel we track, lined up at the EP500's solar input

Every panel we track with a published voltage, in a line by that voltage. The figure is Voc, the open-circuit voltage, what a panel puts out in sun with nothing drawing from it. The black line is 145 V. Nothing on the chart gets near it. The tallest bar is Renogy's 590 W rigid at 52.63 V.

The chart draws one panel at a time, and on this station one panel is never enough. Read each bar against 55 instead of 145 and every one falls short. Series wiring stacks them. Two of the tallest bars end to end clear the floor and stay under the ceiling. Three of the tallest do not.

The pale cap on each bar is the extra voltage a cold morning adds, about 10% at −10 °C, which my deck manages most January sunrises. On a chain the caps stack along with the labels, so add them up with everything else.

Point at a bar and it names its panel. Type your own panel's Voc below and it joins the line. Then multiply by however many you'd wire end to end, because the socket sees the total.

Swipe sideways for the whole line-up.

050100150volts, open-circuit+1++yours?145 V · the lintel55 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: BLUETTI 350W

What we'd buy

The best solar panel for the EP500

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

Best overall

BLUETTI 350W Solar Panel (PV350)

4 panels deliver 1008 W.

Check price at BLUETTI

Best value

Eco-Worthy 200W Flexible HJT Solar Panel 18V ETFE 18BB (GW-L02AM200HJT2)

About $1.25 for every watt it actually delivers here. 4 panels deliver 576 W.

Check price at Eco-Worthy

A day on solar

How long the EP500 takes to charge on solar

A little over four hours with the input full, and three sets we track get it there. 5120 Wh is a large battery to fill from the sky, and any chain that delivers less than the full 1,200 W is counting in days.

A good day has three to six hours of sun that strong. Where you live and what month it is decide how many of those days arrive in a row. 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 (1200 W) · full in 4.3 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 EP500

Thirty-one fit, every one of them in a chain, and none plugs in without the adapter. For each panel: the cable that reaches the Aviation socket, how many panels the best set uses and how they are wired, and what that set delivers in good sun. Delivered watts first.

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 EP500, 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 EP500 take to charge on solar?

At its 1200 W solar limit it refills in about 4.3 hours. More panel watts than that won't charge it any faster.

What adapter does the EP500 need for solar?

Every panel we track needs a cable to reach its Aviation input.

The cables they need: MC4 to Aviation (11 panels), DC8020 to Aviation (4 panels), Anderson to Aviation (3 panels), DC5521 to Aviation (2 panels) and XT60 to Aviation (1 panel).

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

Can you use non-BLUETTI solar panels with the EP500?

Yes. What decides it is the panel's voltage and plug, not the brand. 26 panels from Anker SOLIX, Eco-Worthy, EcoFlow, Jackery, Renogy and Rich Solar work with it, as long as the panel stays under 145 V on a cold morning and starts above 55 V.

No single panel starts it; they go in series. The strongest setups here are 4 Anker SOLIX 440W Rigid panels (1200 W delivered) and 4 Jackery SolarSaga 500 X panels (1200 W delivered).

Can you connect two solar panels to the EP500?

You have to. Its input starts at 55 V, so one panel alone won't wake it: wire 2 or more in series.

Wired in series, up to 3 BLUETTI PV100 FX Flexible panels fit under its 145 V limit, even on a -10°C morning. Series adds voltage; parallel adds current.

Past 1200 W delivered, more panels only help on cloudy days.

What is the EP500's solar input?

CP2, the 2nd (middle) 4-pin aviation charging port: 55–145 V, up to 20 A, 1200 W.

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