CLOSED TYP BATTERIES AGM - GEL - LEAD - ACID
In order to achieve a lead-acid battery maintenance-free, a closed-loop battery was created in the 1970s by adding a valve to control the venting of gases during charging and discharging operation. The purpose of the valve is to act as a safety vent when gases are generated during overload or discharge. The lead-acid cell-type battery facilitates the combination of hydrogen and oxygen during the charging process and the creation of water, which prevents the battery from drying out. It is a regulated lead-acid battery with a non-opening valve for adding acid. Sealed batteries are also called sealed lead-acid (SLA) electrolytic batteries. These batteries form a stable electrolyte that has fewer electrolytes than open-type liquid cell batteries. As these batteries are sealed - closed and sealed in liquid, they can be installed and operated in any position, even sideways or vertically. These batteries are used in cases where hydrogen gasification is not tolerated or the battery needs to be moved during transport. There are two types of closed battery for photovoltaics: GEL batteries electrolyte gel and AGM batteries.
Closed type battery: GEL deep discharge battery
Η gel battery (closed type) uses a mixture of silicon oxide and sulfuric acid (electrolyte) to immobilize the electrolyte. This mixture, when added to the battery as a hot liquid, turns into a gel as it cools.
After some time, the gel dries gradually creating small cracks and gaps that create pathways for gas movement and reconstruction. These gases, hydrogen and oxygen, produced as a result of a chemical reaction on the positive and negative plates, combine to form water. This process eliminates the need to add water. However, excess gases escape through the pressure openings. This results in the gel drying and shrinking, causing it to lose contact with the plates and reduce capacity. This type of lead-acid closed type batteries are suitable for stand-alone photovoltaic installations and autonomous photovoltaic systems in remote areas due to less maintenance, easy transport and no use of liquid electrolyte. Closed gel batteries, although less hazardous and easy to maintain, can only be used in limited conditions due to limited starting currents.
Closed type battery: Glass absorption electrolyte battery - AGM battery
The electrolyte (sulfuric acid) in this cell is immobilized using a thin absorbent mesh of fiberglass (fiberglass) between the lead plates. The glass wool layer with small pores absorbs the electrolytic acid and immobilizes it while retaining the available acid in the plates. The fiberglass layer also acts as a divider between the slabs. Its construction allows hydrogen and oxygen to move and recombine to create water. Its charging rate AGM battery is five times faster than hers open type battery. The closed cycle life of a closed-loop battery is better than that of an open-type battery. The cost of AGM is greater than open type battery, but is less than the cost of the gel battery. The AGM works well as a medium-sized battery with a capacity of 50Ah to 280Ah. Its limitations include sensitivity to overload, gradual decline and low specific energy. AGM is less environmentally friendly compared to the open battery. It is sensitive to overload and must be stored in a charged state.
11 results
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Closed type 44AH Calcium battery
68.00 €
44.30 € Excluding VAT
54.93 € Includes VATClosed type battery 44AH of calcium
Closed calcium batteries 44AH European type 44Ah 12V, 360A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 44ah are made in Europe.
• The closed type battery is 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years.In stock
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Closed type 55AH Calcium battery
75.00 €
53.00 € Excluding VAT
65.72 € Includes VATClosed calcium type battery 55AH
Closed calcium batteries 55AH European type 55Ah 12V, 360A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 55AH are made in Europe.
• The closed type battery is 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years.In stock
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Closed type 60AH calcium battery
79.00 €
57.00 € Excluding VAT
70.68 € Includes VATClosed type battery 60AH of calcium
Closed calcium batteries 60AH European type 60Ah 12V, 550A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 60AH calcium are made in Europe.
• The closed type battery 60AH has a construction 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years.In stock
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Closed type 75AH calcium battery
79.00 €
65.00 € Excluding VAT
80.60 € Includes VATClosed type battery 75AH of calcium
Closed calcium batteries 75AH European type 75Ah 12V, 680A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 75AH calcium are made in Europe.
• The closed type battery 75AH has a construction 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years.Out of stock
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Closed type 100AH calcium battery
156.00 €
109.00 € Excluding VAT
135.16 € Includes VATClosed type battery 100AH of calcium
Closed calcium batteries 100AH European type 100Ah 12V, 800A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 100AH calcium are made in Europe.
• The closed type battery 100AH has a construction 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years. -
Closed type battery 145AH / 150AH C100 calcium
179.00 €
136.80 € Excluding VAT
169.63 € Includes VATClosed type battery 145AH of calcium
Closed calcium batteries 145AH European type 145Ah 12V, 800A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 145AH calcium are made in Europe.
• The closed type battery 145AH has a construction 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years.In stock
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Closed type 180AH calcium battery
185.00 €
141.00 € Excluding VAT
174.84 € Includes VATClosed type battery 180AH of calcium
Closed calcium batteries 180AH European type 180Ah 12V, 1000A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 180AH calcium are made in Europe.
• The closed type battery 180AH has a construction 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years.Out of stock
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Closed type 225AH calcium battery
250.00 €
199.00 € Excluding VAT
246.76 € Includes VATClosed type battery 225AH of calcium
Closed calcium batteries 225AH European type 225Ah 12V, 1150A intended for limited use in autonomous photovoltaic systems while containing Calcium plates. They have two reinforced Calcium plates, very good quality at an extremely affordable price, and a satisfactory lifespan which varies depending on the use from 4-6 years. One year warranty is provided and the discharge rate should not exceed 35%.
The batteries are closed and do not require maintenance during installation and use. They have increased starting current ensuring operation under the most demanding conditions.
• The closed type batteries 225AH calcium are made in Europe.
• The closed type battery 225AH has a construction 100% waterproof and is not required
maintenance.
• Plates are Calcium / Calcium.
• A guarantee of up to 1 year is provided.
• It has reinforced lead plates
• Provides large starting currents and their main use is for starter use in motors and limited for photovoltaic use.
• The closed type battery has an average life of 4-6 years. -
Power Queen LifePo4 Battery 12,8V 100Ah Mini Lithium Battery for PV and Boat
380.00 €
299.00 € Excluding VAT
370.76 € Includes VAT -
Ecogel 280 AH ECO SUN Deep discharge battery
575.00 €
452.00 € Excluding VAT
560.48 € Includes VATBATTERY OBM ECOGEL A-280 12 280 Ah 12V C100
Deep discharge batteries OBM ECOGEL 280Ah is a very reliable and quality battery solution for energy storage systems. The batteries OBM ECOGEL 280Ah They provide maximum performance, resistance to overload and deep discharge while their construction is such that it provides them with high resistance to vibrations, vibrations and extreme weather phenomena.
Rated voltage: 12V
Capacity: 280Ah C100 (25oC)
Charging-discharging cycles:> 1150- 1250 for DOD discharge depth 50%
Dimensions: 520mm×269mm×220mm
Weight: 70kg
A 2-year warranty is provided
Price without VAT
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Power Queen LifePo4 12.8V 200Ah Plus Lithium Battery for PV and Boats
620.00 €
495.00 € Excluding VAT
613.80 € Includes VATAvailable on backorder