Bob Dickman Tire Center - AGM Batteries

AGM batteries offer some distinct advantages over wet cell batteries for RV and deep cycle use.
Some of these advantages are as follows:

Unlike conventional "flooded" lead-acid batteries, AGM sealed valve-regulated technology eliminates the need to add water because the oxygen and hydrogen gases react to maintain the necessary amounts of moisture. Highly porous microfiber separators wrapped around the positive plates completely absorb and trap the electrolyte, so there is no excess to spill or leak out of the batter. Oxygen formed from the positive plates during charging passes horizontally through the separator pores to the negative plates, where it reacts with hydrogen and changes back to water to replenish the electrolyte.

Oxygen diffuses through the horizontal separator pores to negative plate as this is the only available path.

Features and Benefits:

AGM Features - The extremely efficient design includes several unique features.

Specially-engineered safety relief valve system effectively controls critical internal gas pressure, preventing capacity loss from excessive gas seepage. This one-way valve also prevents outside air from entering the battery - a common cause of failure in most sealed valve-regulated battery designs.
Fine microfiber glass separators are highly porous to hold electrolyte more efficiently and have extremely low electrical resistance for higher capacity.
Power path grids are computer-cast and pasted to uniform thickness, allowing for the exact degree of compression needed for optimum oxygen flow between the plates and separators. (Plates compressed too tightly will impede oxygen flow, while plates packed too loosely allow valuable oxygen to escape to the top of the battery. Both conditions seriously impair performance and shorten battery life.)
Exclusive individual tank formed plates provide the highest quality and most consistent performance.
Most AGM batteries are rated non-spillable by ICAO (International Commercial Airline Organization), IATA (International Airline Transport Association) and DOT (Department of Transportation) definitions.

AGM Benefits - The AGM Series offers all the advantages of conventional "flooded" batteries without the disadvantages.

Maintenance-free construction eliminates the need to add water.
Completely sealed valve-regulated design eliminates acid spills and terminal corrosion.
Safer Operation substantially minimizes chance of acid spray, fumes and explosion hazards when charged correctly.
Flexible design can be installed in almost any position. (However, upside-down installation is not recommended.)
State-of-charge easily determined by open circuit voltage.
Lower electrical resistance provides higher discharge rates.
High freeze-resistance offers longer battery life.
Resists vibration damage for longer operating time.
Requires less charging time than conventional batteries.

*Please note: we can not ship batteries.