Closed type batteries that do not require the addition of acid or water, that do not need maintenance, are called maintenance-free dry batteries. It is also known as VRLA battery (Valve Regulated lead acid battery). According to its internal structure and technology, it is divided into two groups: AGM battery and gel battery.
The most important feature of such batteries is that they never leak water and acid. And gas output is also minimal. They are much more resistant to vibrations, swings and bumps than normal batteries. So they can move smoothly.
Maintenance-Free Dry Batteries
Dry batteries are mostly used in telecommunications and marine applications. In addition, it centers, power plants, automotive sector, security systems, computer aided production counters, medical sector, emergency lighting systems and battery cars are also needed in areas such as.
Technical Details About Maintenance Free Dry Batteries
In VRLA batteries, during charging and discharging, the gas remains closed at high rates and does not leak out. The name VRLA comes from the valve system that performs this system.
In AGM (absorbent glass mat) batteries, liquid electrolyte is absorbed into separators made of porous glass fiber. These separators are placed in the battery cells with the battery plates to cover the minimum area. Thus, AGM batteries take up less space than aqueous batteries.
In gel batteries, electrolyte is found in the form of gel, as its name implies. Thanks to this feature, gel batteries are more resistant to all types of shock, vibration and temperature than other batteries.
Gel batteries are preferred in the marine industry and solar energy platforms. This type of battery boxes are mostly made of a material called ABS (Antilonitrin Botadin Citrine).
Information About Maintenance-Free Dry Batteries
- Maintenance-free dry batteries do not open the outer cover. Therefore, the battery covers should never be difficult.
- Each cell has a plug that separates the cell from the atmosphere. If internal pressure exceeds 0.08 bar, these plugs are opened and the gas leaks out.
- Maintenance-free dry batteries can be stored at 20 degrees Celsius (room temperature), without charging for up to 16 months. At the end of this period, the capacity of the dry batteries drops by an average of 50%.
- The average temperature is 30, up to 10, 40 can be held without charging for 5 months at most.
- Maintenance-free dry batteries can be recharged with lead-acid battery chargers.
- It is strongly recommended not to leave excessive discharge or empty dry batteries at room temperature for more than a week.
•The ideal charging voltage of non-maintenance dry batteries is 2.3 volts per cell at room temperature. For a dry battery of 12 volts, the charging voltage must be 13.8 volts. 30 degrees 13.5, 40 degrees 13.3 Volta to reduce is important for the health of the dry battery.