OptiSolex 400W Portable SolarBag Kit

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Options: 440W Portable SolarBag Kit
  • True 440W Output:10% higher than conventional products.
  • Ultra-Portable: 17.2 lbs foldable, 50% smaller and lighter, backpack-friendly.
  • 25% N-TYPE Efficiency: Up to 25% conversion efficiency, industry-leading.
  • Zipper Design: Dual 220W panels, deploy separately for angles or split power. 
  • High Compatibility: Connect to power stations or 12/24/48V batteries directly with S1.
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Estimated local shipping start date
  • US: SolarBag: ships within 24 hours
    Kit: SolarBag ships within 24 hours; SolexBrick S1 by September 30
  • EU: Expected to begin shipping on October 15th.
Free Shipping
30-Day Return Policy
Lifetime Customer Support
3-10 Year Warranty

Charge RV Batteries & Power Stations in One Plug

OptiSolex 440W Portable solarBag Kit

Learn more

17.2 lbs

Compact & Portable

Zipper Design

440W→Dual 220W

Rated 440W Output

Higher Efficiency

N-Type Cells

Directly Charges
RV Battery
with S1

Plug & Play Expansion

440W
SolarBag
OptiSolex
$399.99
Lightweight & Portable
Zipper Design
Rated 440W Output
Can Charge Power Stations & Electronics
440W
SolarBag Kit
OptiSolex
$515.99 (SolarBag $410, S1 $159.99)
Lightweight & Portable
Zipper Design
Rated 440W Output
Can Charge Power Stations & Electronics
Direct-to-Lithium Battery Charging
No Cabin Taken for S1 Installation
Effortless 400W Expansion
S1 Auto-Detects 12/24/48V Batteries

Big Power in a Small Package

Free up room for gear that matters — no more choosing between solar panels and your cooler.

17.2lbs

Main Product Image Feature 1
Main Product Image Feature 2
Handheld
Handheld
Backpack
Backpack
Shoulder bag
Shoulder bag

Deploy Anywhere,

Harvest Every Ray

Deploy the SolarBag in seconds wherever the sun shines brightest, even on slopes. The included carabiners make securing it easy for windy days.

Secondary Image
Secondary Image
Product 1

440W SolarBag Kit

Product 2

Other Solar Panels+Controllers

~$569.99 (includes controller)

Kit Price

$400–$700 panel + ~$100–$200 controller

Yes — S1 included

Includes MPPT Charge Controller

Usually sold separately

External, doesn’t occupy interior space

Controller Placement

Requires indoor mounting and ventilation

No installation required — plug & play

Installation

Requires wiring, mounting, and integration

Auto-detects 12V/24V/48V

Battery Voltage Adaptability

Manual setting required

Palm-sized (1/6 the volume)

Controller Size

Typically large (box-mounted)

Panels split into 2×220W for flexible use

Panel Modularity

One fixed foldable unit

20 feet 8AWG cables are included

Accessories Included

Cables are seldom included

10 years for SolexBrick S1, 3 years for SolarBag

Warranty (Controller + Panel)

1-2 years for controller, 2-5 years for panels

What's in the box

400W Portable SolarBag Kit

400W Solarbag
×1
SolexBrick S1
×1
Solar Adapter Cables
×1
MC4 Connector Tool
×1
Carabiner
×4
Shoulder Straps
×1
Installation Braket Kit
×1
Mounting Bracket
×1
User Manual
×1

400W Portable SolarBag

400W Solarbag
×1
Carabiner
×4
Shoulder Straps
×1
User Manual
×1

Specifications

440W Portable SolarBag

Max Power at STC

440W

Open Circuit Voltage

42V/21V

Optimum Operating Current

11.1A

Optimum Operating Voltage

36V/18V

USB-C

5V/3A, 9V/3A, 12V/3A, 15V/3A, PD45W max

Specifications

SolexBrick S1

Solar Input Voltage

10-50 VDC

DC Output Voltage

Auto 12/24/48V

Maximum Output Current Rating

50A

Output Power

230W@5V, 450W@12V

Model

MCS230

Support

FAQ

Is the SolarBag compatible with my power station ?

Here's a quick way to check compatibility:

1. Refer to the user manual of your power station and locate the solar input specifications.

2. The optimum operating voltage & current of the OptiSolex 440W Portable SolarBag are: 42V, 11.2A.

3. If your power station maximum input voltage (Voc) and input current are equal to or higher than these values, the SolarBag should work safely with your power station.

Still have doubts? Our team is here for you at support@optisolex.com.

What kinds of devices can be charged with this kit?

OptiSolex 440W Portable SolarBag Kit can charge LiFePO₄ (LFP) batteries (solar charge controllers are required) and portable power stations. Just ensure the open circuit voltage of the solar panel does not exceed the maximum DC input voltage of any connected power stations or solar charge controllers. can charge batteries (solar charge controllers are required) and portable power stations. Just ensure the open circuit voltage of the solar panel does not exceed the maximum DC input voltage of any connected power stations or solar charge controllers.

Will installation take a long time if I'm a beginner?

It's not hard at all. The choice of battery/power station connection is slightly different and requires no complex electrical knowledge. Most users can complete the installation in 5-15 minutes following the tutorial and instructions.

Does the installation require specialized tools?

No professional tools are required and all accessories are included in the set. The manual can be provided with the steps of pictures and words.

Is it possible to power electronic devices directly?

Yes. Each 220W panel provides 3 outlets:Device support: Mobile (1-2 hours full) , tablet (2-3 hours) , laptop (2.5-4 hours) .Note: high-power equipment (e. g. refrigerators) must be relayed through batteries or power stations.

How long does it take to charge a RV battery?

Depends on battery capacity, sunlight intensity and other factors.For example, a 200Ah battery (12V) can be fully charged in about 5-6 hours under ideal sunlight. Overcast hours may be extended by up to 30% . Power generation status can be viewed in real time via the APP (Bluetooth connection to S 1 module is required) .Specific formulas can be used to estimate:Formula:Battery Capacity(X wh=VxAh)/Input Power(W)x 1.2 or more for buffer.

Why is my portable solar panel underproducing?

The output performance of solar panels is dependent on multiple factors. These include sunlight intensity, temperature, and weather conditions. Indirect sunlight, rising temperatures, cloudiness, and dust and dirt build-up can reduce the output of your solar panel.

How should I connect multiple solar panels for my system? Should I use a series or parallel configuration?

440W solar panel blanket can be connected in series or parallel configuration or array. How you choose to connect multiple solar panels depends both on the size of your off-grid solar system and your power needs. Connecting solar panels in a series increases the voltage of the system, leaving the system current output the same as a single panel. The total amount of voltage of a series-connected array can be measured by multiplying the voltage output of a single panel by the number of panels. Or if you have panels of different voltages you add the voltage of each panel to get the total voltage of the array. Connecting solar panels in parallel increases the current of the array and maintains the voltage output of a single panel. The total current of a solar array connected in parallel can be measured by multiplying the current of a single panel by the number of panels. Make sure the open circuit voltage of the connected panels does not exceed the maximum DC input voltage of the power station or controller.

Tutorial

How to Charge Your Power Station with OptiSolex 440W Portable SolarBag

How to Charge Your Lithium Battery with the OptiSolex 440W SolarBag & SolexBrick S1 MPPT Controller

Download

440W Portable SolarBag User Manual

PDF

SolexBrick S1 User Manual

PDF

What do our users say?

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