Renogy 300-Watt 24-Volt Monocrystalline Solar Panel Review

Overall Rating 9
Portability 6
Compatibility 9
Durability 8
Ease of Use 9
Value for Money 8


Written by qualified solar engineer Aniket. Last updated:

Our Verdict

Renogy’s largest offering in its catalog of solar panels comes with flawless construction and performance. The most interesting component is the PERC cells, the technical meaning of which we will cover further in this Renogy 300 watt 24 volt monocrystalline solar panel review.

The tempered glass and aluminum frame improve durability while keeping the weight in check. With IP rated MC4 connectors and junction box, it is waterproof. At just 65 inches long, this is one of the smallest 300W panel in the market. A panel of this capacity may not sound like much of a portable product, but it is relatively easy to handle. If you are looking for other sizes or other features but aren’t sure where to look, here is our list of transportable solar panels.

Where To Buy


The panel comes with a maximum power voltage of 32.25 volts, which makes it suitable for most 24V devices. It can be easily connected to a set of two 12V batteries connected in series. With a 9.33A current rating, it can be connected to a variety of charge controllers before passing the current to the batteries. The MC4 connectors make connecting easy, and they also ensure safety by having distinct male and female units.


On the durability front, the panel does not come with any extraordinary features, such as a strengthened frame. It does, however, have a very good build-quality that makes it sufficiently durable considering its component materials. The glass is a low-iron tempered piece that can sustain a respectable amount of shocks as well as snow and wind loads to a good extent. The aluminum frame should not rust and the waterproof junction box and connectors make it perfectly weather-proof.

close up of the corner of a Renogy 300 Watt 24 Volt Monocrystalline Solar Panel

Ease Of Use

This 300W monocrystalline solar panel comes with a size that is similar to that 250-watt panels with traditional cells. This makes it an easy to handle panel, in case portability or space-saving is in your mind. Besides the handling, the mounting part is also quite simple. It comes with pre-drilled holes for fastening to mounting brackets. There are also grounding holes for safety purposes. The MC4 connectors make series connection a simple task, while connecting to charge controllers and batteries is also uncomplicated.


PERC stands for Passivated Emitter Rear Cell, which means the light absorbed into the cell from the front boundary reaches the rear surface and is emitted back to the interior of the cell. This ensures more electron movement and thus a higher generation of current. The use of PERC helps bring down the dimensions of the panel by a noticeable extent. Besides that, the back-sheet and frame feel heavy-duty, while the glass has anti-reflective properties for maximum photon capturing.


Except for the frame that is black in color, the rest of the panel sports colors and shapes like almost any other panel. The rear has a snow-white back-sheet and the front has dark mono-Si cells accurately stringed together in series. Unlike some of the older panels, there is not plenty of white space in between and on top of the cell matrix – an optimum use of space.

side facing Renogy 300 Watt 24 Volt Monocrystalline Solar Panel

What We Like

The most impressive thing about this panel is its dimensions; it is surprisingly small for its power rating. The other aspects may not be as striking, but they are not disappointing either. The light and rust-free frame with toughened glass promises a long life, while pre-drilled holes and waterproof components ensure both ease and safety. In conclusion, the Renogy 300 watt 24 volt PERC-cell panel may not be a winner at being portable, but it is still one of the most well-built, compact, and efficient solar panels you can find.


  • PERC cells make a very compact panel
  • Excellent quality of components
  • Pre-drilled holes
  • Ground-mount compatible


  • Packing quality can be better

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