ESG Brand Deep cycle 12v250ah Lead acid Long life VRLA SMF Solar Storage Battery

Parts  

Material of construction 

Function

Positive plates

PoPositive plates are plate electrodes of which a grid frame of lead-tin-calcium alloy holds lead dioxides as the active material.sitive plates are plate electrodes of which a grid frame of lead-tin-calcium alloy holds lead dioxides as the active material. 

Retain sufficient capacity. MRetain sufficient capacity. Maintain capacity performance for long period of time (long life performance). 

Negative plates 

Negative plates are plate electrodes of which a grid frame of lead-tin-calcium alloy holds spongy lead as the active material.

Retain sufficient capacity. 
Maintain capacity performance for long period of time (long life performance). Minimize self-discharge.  

Separator 

The advanced micro porous Absorbed Glass Mat (AGM) or PVC separators retain electrolyte and prevent shorting between positive and negative plates. Separators adopt a non-woven fabric of fine glass fibers, which is chemically stable in the diluted sulfuric acid electrolyte.

Prevents short circuit between positive and negative plates. 
Retains electrolyte.
Prevents active material fall by pressing plate surfaces.

Electrolyte

The GEL Electrolyte is used as the medium for conducting ions in the electro-chemical reaction in the battery. 

The GEL Electrolyte is used as the medium for conducting ions in the electro-chemical reaction in the battery.   

Container & Cover

Materials of the body and cover of the battery case are ABS resins, unless otherwise specified  

Accommodates plate group consisting of positive and negative plates and separators. 
Retains sufficient mechanical strength to withstand battery internal pressure.

Safety valve 

Synthetic rubber with excellent acid resistance and little deterioration by aging. In cap shape. The valve is comprised of a one-way valve made of material such as neoprene.

Releases gas if cell internal pressure rises abnormally high and normalizes internal pressure. Prevents ingress of oxygen.