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Covers critical warnings about disassembly, child safety, and handling damaged units.
Details cautions for water exposure, disposal, physical stress, and bending the unit.
Guides users on positioning the panel for sunlight and connecting devices via USB ports.
Details that products are free from defects in workmanship and materials under normal use and service.
Outlines the process for reporting and resolving material or workmanship defects.
Details the procedure for addressing issues related to product performance.
Lists conditions that are not covered by the warranty and liability limits.
Details the procedure for submitting and processing product warranty claims.
Covers critical warnings about disassembly, child safety, and handling damaged units.
Details cautions for water exposure, disposal, physical stress, and bending the unit.
Guides users on positioning the panel for sunlight and connecting devices via USB ports.
Details that products are free from defects in workmanship and materials under normal use and service.
Outlines the process for reporting and resolving material or workmanship defects.
Details the procedure for addressing issues related to product performance.
Lists conditions that are not covered by the warranty and liability limits.
Details the procedure for submitting and processing product warranty claims.
The Renogy E.FLEX 21 Portable Solar Panel is a versatile and efficient device designed to harness solar energy and convert it into usable electric currents for powering essential electronics. With an impressive energy conversion efficiency of up to 22%-25%, this portable solar panel ensures that you can make the most of available sunlight, providing a reliable power source for your devices in various outdoor settings.
The primary function of the E.FLEX 21 is to convert sunlight into direct current (DC) electricity, which can then be used to charge a wide range of electronic devices via its integrated USB ports. It is equipped with advanced iSolar technology and an auto-optimization function, which work together to ensure a safe and effortless charging experience. The device features two USB ports (USB Port 1 and USB Port 2), each capable of delivering up to 5V/2.4A Max, making it suitable for charging smartphones, tablets, power banks, and other small electronic gadgets. The built-in voltage regulator ensures stable power output, protecting your devices from potential damage due to fluctuating solar intensity. A red LED indicator illuminates when the E.FLEX 21 is ready to charge, providing a clear visual cue for operation. In cases of over-current or short-circuit, the LED indicator will flash red, signaling that the USB ports have been temporarily shut off to protect both the panel and your connected devices.
The E.FLEX 21 is designed for ease of use and portability, making it an ideal companion for outdoor activities such as camping, hiking, and travel. To operate the device, simply place it under direct sunlight. The panel features an adjustable nylon kickstand, allowing you to optimize its angle for maximum sun exposure, which is crucial for efficient charging. It is recommended to steer clear of trees or branches that could shade the panel, as this can significantly slow down the charging process. Once positioned, connect your devices to the E.FLEX 21's USB ports using the included USB-A to USB-C cable, Micro USB Cable, or other compatible USB charging cables. The auto-optimization function is a key feature, guaranteeing immediate reconnection and resumption of charging when sunlight returns after any interruption, eliminating the need for manual intervention. This ensures a continuous and hassle-free charging experience, even in conditions where sunlight might be intermittently obscured. The device's foldable design further enhances its portability, allowing it to be easily packed into a backpack, tote, or suitcase without taking up excessive space. Its rugged nylon construction also contributes to its durability, enabling it to withstand various unpredictable weather conditions, although it is important to note that while it is designed to withstand splashes and spills, it is not fully waterproof and should not be submerged in water or left in heavy rain.
Maintaining the E.FLEX 21 is straightforward, focusing on keeping the solar panels clean to ensure optimal performance. For cleaning, it is recommended to use a wet sponge or cloth. A mild, non-abrasive cleaning agent can be applied to remove grime and dirt as necessary. This simple cleaning routine helps to prevent any build-up on the solar cells that could impede their ability to absorb sunlight efficiently. Beyond cleaning, proper handling and storage are essential for the longevity of the device. Users should avoid stepping, walking, standing, or jumping on the unit, as localized heavy loads can cause micro-cracks on the solar cells, ultimately compromising the unit's reliability. Bending the unit should also be avoided, as this can break the solar cells. The device should not be stored near heat sources or exposed to direct heat. It is also crucial to keep the unit away from explosives and corrosive substances to prevent damage. When not in use, the foldable design allows for compact storage, protecting the panels from potential physical damage. The E.FLEX 21 is designed to be robust, but adhering to these maintenance guidelines will help ensure its continued efficiency and extend its operational lifespan.
General| Type | Monocrystalline |
|---|---|
| Maximum Power (Pmax) | 100W |
| Maximum Power Voltage (Vmp) | 18.9V |
| Maximum Power Current (Imp) | 5.29A |
| Open Circuit Voltage (Voc) | 22.5V |
| Short Circuit Current (Isc) | 5.75A |
| Module Efficiency | 21% |
| Operating Temperature | -40°F to 185°F (-40°C to 85°C) |
| Warranty | 25-year output warranty |
| Maximum System Voltage | 600V DC |
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