Anker SOLIX PS400 Bifacial 400W Portable Solar Panel

6th of 39 we've scored in Portable Solar Panels

6th of 39 in Portable Panels

Anker SOLIX PS400 Bifacial 400W Portable Solar Panel

400 W or more panel
5-year warranty

SVT Score, Upper

Usability6.3/10Social4.8/10The SVT Score is placed on its category's range

Versus

SVT SCORESRead review

A 400 W bifacial folding panel with a built-in stand, an IP68 rating and an XT-60i lead in the box, weighing 21.9 lb, with a five-year warranty, for large power stations.

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SKU: AS340111 Category: Portable Solar Panels Brand: Anker SOLIX

Usability

6.3 out of 10

Capacity10400 W rated at STC, on the 400 W or more rung for portable panels

Electrical: 48 V and 8.33 A at maximum power, 57.6 V open circuit and 8.75 A short circuit in the datasheet
Rear face: Anker claims up to 10 percent more from the rear; the score reads the front-side rating

Efficiency817.8 percent computed from 2292 x 983 mm, on the 17 to 17.9 percent rung

Marketed: conversion efficiency of 25 percent and more, against the computed module figure

Lifespan1No power-output warranty published; the 10-year lifespan is a claim, not a guarantee

Better on lifespanRenogy 400W Solar SuitcaseRenogy's December 2025 warranty schedule gives 5 years to 95 percent. $495.99Scores 5.0

Features8IP68, bifacial, built-in stand and an XT-60i lead in the box; no front material or diode count

Stand: one main tilt near 35 degrees with slight adjustment, per the product page's own FAQ
Range: rated from −4 to 140 °F (−20 to 60 °C), with a 75 V DC maximum system voltage
Diodes: the guide names Schottky bypass diodes but gives no count

Verification4third-party TÜV SÜD PPP 58200B certificate Z2 127148 0347 by model; no UL 61730 listing.

Searched: TÜV SÜD Intertek UL Certipedia SGS CEC LabTest
Record: TÜV SÜD, PPP 58200B:2022 (Consumer Photovoltaics, design qualification and type approval), AS340, AS320, Anker Innovations Limited

Warranty & Support660 months in Anker's warranty policy; five years on the product page and datasheet

Price

List: $699.99 at ankersolix.com

Summary

Big Bifacial output, single fixed tilt

What it is: a 400 W bifacial folding panel with a built-in stand and an XT-60i lead in the box
The trade-off: full output from one panel and five years of cover, but no output guarantee and little tilt range
Not checked: the temperature coefficient, front material, diode count and its own Amazon rating
Look elsewhere for: an output guarantee, a shorter footprint or a stand with a wide angle range

Strengths

Full output from a single folding panel
Above-typical module efficiency for a folding panel
Rear face adds output over bright ground
Top dust and water rating
Station lead in the box beside the MC4 cables
Long workmanship warranty

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Drawbacks

No power-output warranty
No temperature coefficient published
Front material not stated
Stand offers little angle range
Very long when unfolded

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Social score

4.8 out of 10

RedditBrand-level3 out of 10

r/anker: an F2600 owner read about 260 W from Anker's 400 W folding panel aimed at a clear sky in eastern Pennsylvania and asked whether it was defective (July 2024)
r/SolarDIY: a C1000 owner never saw an Anker 200 W panel and a second-brand 220 W panel pass 120 W combined in direct sun; commenters blamed mismatched wiring (March 2026)
r/SolarDIY: in the same thread another owner said his Anker 200 W folding panels were lucky to draw 100 W in full summer sun in Tampa (March 2026)

GoogleBrand-level5 out of 10

OutdoorGearLab: buys its test units, earns Amazon commission; measured 166 W from the earlier four-fold PS200, 83 percent of rated, ranking it 4th of 12 at a score of 79 (July 2026)
Faulted: OutdoorGearLab names short cables and a high price for an average performer (July 2026)
How-To Geek: links Amazon with an affiliate tag and does not say how it got the unit; read 97 W from the earlier 625 100 W panel in sun and 55 to 73 W under cloud, scoring it 7 of 10 (December 2022)

YouTubeBrand-level5 out of 10

RANDOMFIX: earns Amazon commission on tagged products; ran the earlier 531 200 W panel for three weeks with a C1000 and read 140 W and 178 W in partly sunny Texas conditions (February 2024, about 47,800 views)
TravelingWithTheReidhaars: bought his own 400 W folding panels from a dealer and on eBay; called them heavy, bulky and a pain for one person to set up on three kickstands (about June 2026, about 2,800 views)

AmazonBrand-level6 out of 10

Earlier PS400 (B0BWQJ19M4): 4.2 from 97 ratings; Amazon's summary calls power output mixed, with some buyers reporting under half the rated watts (August 2026)
Earlier PS200 (B0BK8YWY9Q): 4.1 from 139 ratings, now unavailable, with mixed feedback on output, quality and weight (October 2026)
Bifacial line: the PS100 Bifacial reads 4.3 from 9 ratings (August 2026) and the PS200 Bifacial 3.6 from 6 (October 2026)

User reviewsNot scored

The retailer pool is blank: Home Depot's listing of the PS400 Bifacial holds no reviews, and no Lowe's, Best Buy, Walmart or REI listing of the panel alone was found (October 2026).

Trustpilot

Trustpilot rates Anker SOLIX US (ankersolix.com) 4.2 from 775 reviews on a page claimed in November 2025 that invites reviews, 73 percent five-star and 16 percent one-star (October 2026).

Track record

The BBB rates Anker Innovations of Ontario, California an F, not accredited, with 62 complaints in three years (October 2026).
No CPSC or Health Canada recall names any Anker SOLIX solar panel, searched in October 2026.
Anker's recalls on both lists in that search were power banks and cooler battery packs.

Not countedExcluded

Not counted in any pool: ankersolix.com's own reviews and entries reposted from it, Home Depot Reviewer Program entries, r/AnkerSOLIXCommunity, which Anker SOLIX runs, its YouTube channel and Facebook pages, and its staff posts, all first-party.
Also not counted: Anker's affiliate and referral programs and their discount codes, reviews flagged Incentivized at Walmart or Best Buy, and anything gathered in Anker SOLIX promotions.

Summary

Brand-level

4.2 on Trustpilot, an F from the BBB

Specs

CapacityNot applicable
AC OutputNot applicable
System VoltageNot applicable
Panel Power400 W or more
Charge CurrentNot applicable
Safety ListingCertificate published
Low-Temp ChargingNot applicable
Warranty5 Years
MonitoringNot applicable
Weight21.9 lb

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Not published by Anker SOLIX: cell type.

At a glance

22.3 x 38.7 x 3.1 in folded
57.6 V open-circuit voltage
0.5 m XT-60i station lead
Two 2.5 m extension cables

Company

Anker Solix Limited sells Anker SOLIX in the US, and the brand is owned by Anker Innovations Technology Co., Ltd., a company based in Changsha, China.

Where it sells

It sells its 100 to 400 W bifacial folding panels with a cart at ankersolix.com and on Amazon US through Anker's own store, and its panels are listed at Home Depot, Lowe's and Best Buy.

Description

The Anker SOLIX PS400 Bifacial (model AS340 in its quick start guide, store SKU AS340111) is a folding panel of N-type cells that collect light on both faces, in an aluminium-alloy frame with a built-in stand.

It is rated 400 W at standard test conditions (±5%), with 48 V and 8.33 A at maximum power, 57.6 V open-circuit and 8.75 A short-circuit in Anker's datasheet, and Anker markets conversion efficiency of 25% and more.

Unfolded it measures 90.2 x 38.7 x 0.7 in (2292 x 983 x 17 mm), folded 22.3 x 38.7 x 3.1 in (3.2 in on the product page), and it weighs 21.9 lb (9.95 kg). It is rated IP68, ends in MC4 connectors, and is rated to run from −4 to 140 °F (−20 to 60 °C) with a 75 V DC maximum system voltage.

Anker says the rear face adds up to 10% more power over bright ground such as snow, sand or concrete. The box holds the panel, two 2.5 m solar extension cables, a 0.5 m XT-60i charging cable, a quick start guide and a safety card. Anker's warranty policy, the product page and the datasheet give five years.

It sells at $699.99 on ankersolix.com, where the earlier PS400 Portable Solar Panel is sold out.