Can I connect two Renogy E.Flex 200W panels together?

Yes. Renogy documents both options: in series the operating voltages add while current stays the same as one panel; in parallel the currents add while voltage stays the same. Renogy's caution is that the combined open-circuit voltage must not exceed the power station's or charge controller's maximum DC input voltage. Two in series is about 43.2 V open-circuit by that arithmetic, so check your station's limit first.

Why is my Renogy panel producing less than 200 W?

Renogy lists indirect sunlight, temperature rise, cloudy skies, and dirt or stains on the panel surface as the usual causes. The 200 W figure is the rating at standard test conditions.

200 W MC4 (any brand)

Renogy E.Flex 200W Portable Solar Panel

A 200 W folding N-type panel with a standard MC4 output and a 45 W USB-C port, the brand-neutral choice for stations that aren't Jackery.

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Best for

A 200 W balcony panel for EcoFlow, Bluetti, Anker or any MC4-input station

Specifications

Rated power	200 W (STC)
Cells	N-type monocrystalline, >25% cell efficiency
Electrical (STC)	Voc 21.6 V, Vmp 18.8 V, Imp 10.6 A, Isc 11.3 A
Output	MC4 (adapter cables sold separately); USB-C 45 W max, USB-A 18 W + 15 W
In the box	Panel (adapter cables sold separately)
Water/dust	IP65 panel; MC4 port IP68
Kickstands	Adjustable to 40°, 50° or 60°
Weight	13.89 lb (6.3 kg)
Folded	23.72 × 22.99 × 1.97 in
Unfolded	87.80 × 22.99 × 0.12 in
Warranty	2-year material and workmanship

Specifications as published by Renogy. Confirm against the current spec sheet before buying: manufacturers revise models without renaming them.

What's good

MC4 is the common solar plug: with the right adapter cable it feeds most brands of power station
Renogy documents both series and parallel wiring, so two panels can be combined to suit the station's input
45 W USB-C on the panel can charge a laptop or tablet directly
Three kickstand angles help aim it at the sun from a balcony floor

What's not

No adapter in the box: budget for an MC4-to-your-station cable
IP65 is splash-resistant, a step below the Jackery panels' IP68
Not bifacial, so a reflective balcony floor adds nothing

Our verdict

Buy this when the power station isn't a Jackery. The MC4 output works with most stations through the matching adapter cable, and its 21.6-volt open-circuit voltage is well under the 60-volt ceiling of stations such as the Explorer 1000 v2; check your own station's input range, as Renogy itself advises. It is the same 200-watt class and nearly the same weight as the SolarSaga 200W, and the same balcony rules apply: shade and a flat-against-the-railing mount cost more output than any efficiency rating gains.

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Frequently asked questions

Renogy says it can charge most power stations, provided the panel's open-circuit voltage (21.6 V) does not exceed the station's maximum DC input voltage. The panel has an MC4 output, so you also need an adapter cable from MC4 to your station's solar input; Renogy sells these separately.

Compare with the alternatives

Jackery SolarSaga 200W: recharging a jackery explorer 1000 v2 (or any jackery) from a balcony
Jackery SolarSaga 100 Air: small balconies, smaller jackery stations, or adding output a panel at a time

See the full portable solar panels roundup →