With our solar systems we recommend the use of the gel batteries due to their stable properties. A modern gel battery is a Valve Regulated Lead Acid (VRLA) battery with a gelified electrolyte. The sulphuric acid is mixed with fumed silica which makes the resulting mass gel-like and immobile. Unlike a flooded wet-cell lead acid battery, these batteries do not need to be kept upright.  Gel batteries are maintenance free since it is a sealed battery and no emission of gasses occurs so the volume of electrolyte released is minor. This means that a gel battery lasts 2-3 times longer than a normal flooded battery. 

 

In addition, another advantage is that gel batteries are more acid-starved than other batteries which protects the batteries’ plates. This makes gel batteries the best suited for deep discharge applications.

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The ideal gel battery supplied by Sunsynk® is the 12V 200Ah gel battery.