Flexopower Kalahari 400W Foldable Solar Panel

Short Summary

The Flexopower Kalahari 400W Hi-Volt Foldable ETFE Solar Panel is a premium portable solar solution for clients who need faster, more efficient charging in camp. Designed for extended off-grid use in South Africa, this 400W foldable panel uses a nominal 24V Hi-Volt system, ETFE encapsulation, and shingled solar cell technology to deliver strong performance with reduced cable losses and better real-world charging efficiency.

Why This Product

When clients spend several days off-grid, standard portable solar panels can become a limiting factor. Lower-voltage systems may suffer from cable loss, slower charging, and solar input bottlenecks on portable power stations or camping battery systems.

The Kalahari 400W helps solve that with a higher-voltage design that reduces current in the cables and improves charging efficiency when paired with suitable equipment. For clients who camp in the shade and place their panel in the sun, this foldable solar panel offers a more capable, more stable charging solution that helps keep power systems working with less compromise.

Key Features

• 400W portable solar output – Strong output for extended off-grid camping, longer stays, and higher daily energy demand.
• Hi-Volt 24V nominal system – Higher voltage helps reduce cable current and supports a more stable, efficient power setup.
• 36.5V Vmp – Well suited to portable power stations with solar input capped at 10A, helping avoid the limitation common with many 12V panels.
• Better cable efficiency – Reduced current allows longer extension cable runs of up to 25m with 4mm² cabling.
• ETFE encapsulation – Uses Teflon-based ETFE for a durable, premium portable panel finish designed for outdoor use.
• Daikin Neoflon ETFE – Flexopower specifies Neoflon from Daikin, Japan, for premium encapsulation quality.
• Shingled solar cell technology – Delivers more power per square metre and reduces losses caused by partial shading.
• 22% cell efficiency – High-efficiency mono-crystalline PERC shingled cells help maximise solar harvest.
• Aluminium frame – Adds structural stability and helps reduce long-term solar cell cracking.
• Collapsible support legs – Positions the panel at roughly 45 degrees for improved harvesting, especially in winter and lower sun conditions.
• Traceable quality control – Each panel carries a unique serial number for tracking through manufacturing and QC.
• Foldable design – Packs down for transport and storage while opening to a large working surface in camp.
• Free shipping within South Africa – Added practical value for local buyers.
• 5-year manufacturing warranty – Long-term support for peace of mind.

Ideal For

• Clients needing a high-output portable solar panel for 5+ days in camp
• Off-grid campers who camp in the shade and place their solar panel in the sun
• Portable power station users with solar input capped at 10A
• Victron Smart MPPT users needing a powerful portable solar charging option
• Overlanding and camping setups wanting longer cable runs with reduced losses
• Clients looking for a premium foldable solar panel for South African conditions

Local Support from 4Matt Campers

At 4Matt Campers, we help clients choose practical off-grid, camping, and overlanding equipment for real South African travel conditions. If you are looking for a foldable solar panel in Cape Town, the Western Cape, or anywhere in South Africa, we can help you assess panel size, charging compatibility, and whether a Hi-Volt setup makes sense for your power system.

Whether you are powering a portable power station, caravan, trailer, or overlanding battery system, 4Matt Campers is here to guide you toward a solar solution that matches your travel style and energy needs.

Technical Specifications

• Brand: Flexopower
• Product Category: Foldable portable solar panel
• Dimensions, Folded: 900 x 590 x 90 mm
• Dimensions, Unfolded: 2360 x 900 x 25 mm
• Weight: 12.6 kg
• Capacity / Output: 400W STC rated output
• Materials: Aluminium frame, ETFE encapsulation
• Solar Cell Type: Mono-crystalline PERC, shingled
• Solar Cell Efficiency: 22%
• Power Requirements: Solar generation product, no external power requirement
• Max. Operating Voltage (Vmp): 36.5V
• Open Circuit Voltage (Voc): 43.1V
• Operating Current (Imp): 11.0A
• Max. System Voltage: 200V
• Connector: Grey Anderson connector
• Application: 5+ days in camp
• Recommended Strategy: Camp in shade, panel in the sun
• Compatibility: Suitable for many MPPT camping systems; Victron Smart MPPTs are well suited
• Not Compatible With: PWM charge controllers
• Warranty: 5 years in manufacturing
• Other Specs: Collapsible support legs, unique serial number traceability, free shipping within South Africa

What’s Included

• 1 x 400W foldable solar panel
• Grey Anderson connector

Optional Fitment / Upgrade Notes

This panel may be especially useful in higher-demand off-grid systems where clients need more efficient solar charging over longer cable runs. Optional add-ons supplied in the source material include:

• 20m extension cable set, SB50 grey Anderson connector, Hi-Volt 4mm²
• 25m extension cable set, SB50 grey Anderson connector, Hi-Volt 4mm²

Before purchase, clients should confirm:

• MPPT compatibility
• Solar input limits of their power station
• Connector compatibility
• Cable length requirements
• Mounting or deployment space in camp

Enquire with 4Matt Campers to check whether the Flexopower Kalahari 400W Hi-Volt Foldable ETFE Solar Panel is the right match for your portable power station, MPPT setup, caravan, trailer, or overlanding power system. Visit our Cape Town showroom or contact our team for practical guidance on building a more efficient off-grid charging setup.

Complete Your Setup

Browse the full Flexopower solar & power range — solar panels and portable power stations. Keep your camping fridge running off-grid with the right 12V electrical accessories.

FAQ

What makes the Kalahari 400W a Hi-Volt solar panel?
It operates at a nominal 24V with a Vmp of 36.5V, which helps reduce current in the cables and improve charging efficiency in suitable systems.

Is the Kalahari 400W suitable for portable power stations?
Yes. It is positioned as ideal for portable power stations where solar input is capped at 10A, because the higher voltage can help avoid the input limitation seen with some conventional 12V panels.

Can I use this panel with any solar charge controller?
No. It is stated as not suitable for PWM charge controllers. It is intended for suitable MPPT systems, with Victron Smart MPPTs specifically noted as well suited.

Why use shingled solar cells?
Shingled solar cells help reduce losses from partial shading, improve power density, and reduce the overall panel footprint for easier packing.