Sealed Gel Cell Batteries

Gelled lead acid batteries actually predate the AGM type, but are losing market share to them. They have many of the same advantages over flooded lead acid (FLA) batteries as AGM, including ease of transportation. The main exception is that the gelled electrolyte in Sealed Gel Cell batteries is highly viscous, and the recombination of the gases generated while charging occurs at a much slower rate. This means that they typically have to be charged slower than either FLA or AGM batteries. Keep in mind: 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.

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Product Name	Volts	Amp Hours	Price ↓
8GU1-DEKA 12V, 31.6AH Sealed Gel Battery (similar to MU1 SLDG)	12 V	31 A-H	$113.35
MK 8GU1H GEL 31.6 AH (20HR) T873 w/ handle	12 V	31 A-H	$113.35
MK 8G22NF GEL 50.9 AH (20HR) T881 Terminal	12 V	50 A-H	$194.00
Universal Ub24Gel, 12V,74Ah (20Hr) Sealed Gel Cell	12 V	74 A-H	$228.92
8G24 12V, 73.6 AH (20HR) Sealed Gel Cell UT Terminal	12 V	73.6 A-H	$259.07
MK Battery8G27 Gel 86.4 AH, 12V, T876 Terminal, Deep Cycle Battery, Group 27	12 V	86.4 A-H	$281.45
MK 8G30H GEL 98 AH (20HR) T876 Terminal	12 V	98 A-H	$315.50
MK 8G31 GEL 97.6 AH (20HR) Stud Terminal	12 V	98 A-H	$315.50
Universal 27Dc, 12V, 90Ah (2Ohr) Sealed Gell	12 V	90 A-H	$317.14
MK 8GGC2 GEL 180 AH (20HR) 6V T881 Terminal	6 V	180 A-H	$341.04
MK 8G31DT GEL 97.6 AH (20HR) Dual Terminal	12 V	98 A-H	$351.74
UB30H 12V 98Ah Sealed Gel Cell Deep Cycle Battery	12 V	98 A-H	$370.26
MK 8G4DLTP GEL 183 AH (20HR) LTP Terminal	12 V	183 A-H	$619.31
MK 8G8DLTP GEL 225 AH (20HR) LTP Terminal	12 V	225 A-H	$753.10

More Info on Sealed Gel Cell Batteries

If charged at too high a rate, gas pockets form on the plates and force the gelled electrolyte away from the plates, decreasing the battery's capacity until the gas finds its way to the top of the battery and is recombined with the electrolyte. For use in a grid-tie with backup system, or any system where discharge rates are less than severe, gel batteries may be an excellent choice.