Gel Batteries
Gel batteries are lead acid batteries made with a highly viscous gelled electrolyte. GEL batteries must be charged at a slower pace than AGM batteries, but are well-suited for systems where discharge rates are less than severe. They typically have to be charged slower than either flooded lead acid or AGM batteries. In a solar electric system you have a fixed amount of sun hours every day and need to store every solar watt you can before the sun goes down.
Here you can find a big selection of low priced GEL solar batteries from all the top brands including MK Battery, Deka Solar, Hawker, Trojan, Rolls, Xantrex and Concorde.
What is the difference between AGM and Gel batteries?
Both AGM and Gel batteries utilize oxygen recombination and pressure relief valves to minimize water loss and allow maintenance-free operation. That is where the similarities end. AGM batteries have the advantage of being mountable in any orientation without capacity loss, have lower internal impedance to support high load currents, and have better capacity at low temperatures. Gel batteries must be mounted upright to prevent air pockets from forming that will burn out the plates. They have inferior performance at high discharge rates and low temperatures.