EcoFlow RIVER 3 vs Jackery 300 Plus: capacity, output and complete kits

According to their manufacturers, EcoFlow RIVER 3 and Jackery Explorer 300 Plus both provide 300 W of rated AC output. Storage capacity and the packages discussed differ: 245 Wh without a panel versus 288 Wh in a kit with a 40 W panel.

This analysis uses European and Dutch manufacturer documentation. We have not carried out our own capacity, charging or backup-power tests; consumer experiences have not been systematically used to judge reliability.

Documented specifications; no performance measurements of our own.
Specification	EcoFlow RIVER 3	Jackery 300 Plus
Capacity	245 Wh	288 Wh
Rated AC output	300 W	300 W
Package in the main comparison	Standalone unit	Kit with 40 W panel
Power station weight	3.55 kg	Approx. 3.75 kg
Separate affiliate bundle	RIVER 3 UPS with 110 W panel	No equivalent bundle

Power limits the appliance, energy limits runtime

A device actually drawing 20 W needs 80 Wh at the output for four hours. This is a calculation of demand; losses and standby consumption require an additional reserve.

Also check the starting load of a motor or compressor. A peak figure or X-Boost is not the same as continuous rated AC output.

A panel kit has a different purchase price

The main comparison covers a standalone RIVER 3 (UPS) and a Jackery Solar Generator 300 Plus with a 40 W panel. Do not compare their prices as if the supplied contents were identical.

No current UK checkout price has been verified. Compare the complete UK power-station and panel packages in pounds, including delivery, rather than reusing an October Dutch euro price.

Carrying weight includes more than the battery

The manufacturers state power station weights of 3.55 kg for RIVER 3 and approximately 3.75 kg for Explorer 300 Plus. Add the panel, cables and bag.

Check external dimensions and the required ventilation clearance. A compartment that can store the closed unit is not automatically a suitable place to operate it.

European version and solar input

Check the output voltage, plugs and permitted solar-panel specifications for the exact EU version. A 40 W panel does not continuously deliver 40 W under all conditions.

This comparison does not establish suitability for supplying a home’s electrical installation or equipment that cannot tolerate interruptions. Consult the specific manual and requirements of the connected device.

The RIVER 3 offer below is a third package

The product link leads to RIVER 3 UPS with a 110 W panel. This package remains separately identified and is not a price reference for the standalone RIVER 3 or the Jackery kit.

UK purchase, shipping area and hardware

Does EcoFlow’s UK shop deliver the RIVER 3 to Northern Ireland or the Highlands?

Its published policy excludes Northern Ireland, the Scottish Highlands and several island regions. Confirm the destination before treating a UK shop price as a deliverable offer.

Does the UK shipping estimate guarantee weekend arrival?

EcoFlow gives a usual three-to-seven-business-day processing and delivery window, subject to logistics, and excludes weekends and public holidays. This is its shop policy, not the Amazon.nl seller’s promise.

Does the UK RIVER 3 receive the five-year warranty shown for RIVER 3 Plus?

The UK table lists RIVER 3 and RIVER 3 UPS at 24 months; the Plus models are separate entries. Check the exact model and purchase channel.

Is the UK Jackery 300 Plus kit identified with the same small panel?

The UK manufacturer page identifies the SolarSaga 40 Mini. Confirm the selected UK kit and sockets; the existing Amazon.nl RIVER link is a different 110 W bundle.

Does a Netherlands affiliate link confirm UK sockets and delivery?

No UK socket configuration or postcode delivery has been verified for that offer. A compatible nominal voltage alone does not establish the supplied socket format.

Which choice fits your use?

RIVER 3 is a candidate for small loads within its confirmed 300 W rating; compare the Jackery kit when the included panel is useful. Neither is an evidence-based choice for high-power appliances or guaranteed uninterrupted supply from these catalogue data alone. Check the complete regional packages and the separately identified RIVER bundle.

Sources and currency

UK checks updated 4 November 2026: EcoFlow UK delivery areas, UK model-specific warranty table and Jackery UK 300 Plus kit. The existing manufacturer specification dates below remain separate from this local review; current stock and checkout totals are unconfirmed.

Editorially updated on 3 November 2026. The source information and price snapshots described were researched on 29 October 2026, unless an individual example states an earlier date. A price snapshot does not confirm the current retail price.

RIVER 3 at EcoFlow → · 300 Plus kit at Jackery → · Jackery EU basic information: Explorer 300 Plus

Additional offer: RIVER 3 UPS with 110 W panel

The main comparison above still concerns the standalone RIVER 3 UPS and the Jackery 300 Plus kit with a 40 W panel. The offer below is explicitly a different package: RIVER 3 UPS with a 110 W solar panel. Do not directly compare this bundle’s price with a standalone power station.

Affiliate links. Zovif may receive a commission when you buy through the Amazon links below. As an Amazon Associate, we earn from qualifying purchases. Read our affiliate-uitleg.

This offer includes RIVER 3 UPS and a 110 W solar panel. It is therefore a different package from the standalone RIVER 3 in our earlier comparison. EcoFlow specifies 245 Wh and 300 W rated AC output. The 600 W figure for X-Boost is not continuously available rated output power. RIVER 3 manufacturer specifications.

View the RIVER 3 UPS kit with 110 W panel on Amazon →

Also see our aanvullende kampeerselectie, featuring Jackery 300D and 240 v2. The 300D has no AC socket and is not the 300 Plus in this comparison.

Addition checked on 10 October 2026. When buying, check the selected bundle, regional version and contents. No product test of our own.