Prostar GM200-2 long life lead acid battery 2V 200ah

Prostar GM200-2 long life lead acid battery 2V 200ah uses pure lead in their construction, which performs better and lasts longer than the recycled lead used in many batteries today, both flooded and AGM.

  • Model: GM200-2
  • Brand: Prostar or OEM
  • Capacity: 2V 200AH
  • Dimension: 173x111x329x365mm

Prostar 2 Volt GM Series lead acid battery is made of individual cells each providing 2 Volt. By combining multiple cells, batteries of nearly every voltage and capacity can be made. Depending on the capacity of the cell, one, two or four connection points for the positive and negative connections are available. Due to the flexible design, the final shape of the battery can be adapted to the space available. The cells can be placed in any direction, creating a system with all connections on the front so it enables easy checking of individual cell voltages and the torque of the connections.

AGM (Absorbed Glass Mat) sealed battery technology was originally invented in 1980, and developed and introduced in 1985 for military aircraft where power, weight, safety, and reliability were paramount considerations. The Concorde AGM batteries are VRSLAB (Valve Regulated Sealed Lead-Acid Battery), sometimes referred to as VRLA (Valve Regulated Lead-Acid). 

2 volt AGM VRLA battery banks are available in a wide range of 2v battery cells, from 100 Ah to 3000 Ah, configured to customer required voltages, standard modules are 24v or 48v battery banks. These are rechargeable Lead Acid Battery banks made up of 2 volt vrla cells used for power backup in solar with an incredibly long cycle life.

2 Volt Battery Structure

2 Volt Battery Structure

2 Volt Battery Construction

Positive PlateFlat plate with lead dioxide
Negative PlateFlat plate with lead
TechnologyAbsorbent glass mat (AGM)
ElectrolyteSulfuric acid
Safety ValveSelf resealing, pressure regulated and explosion proof
Operating TemperatureNominal Operating Temperature : 25℃(77℉)
Discharge : -20℃ ~ 50℃ (-4℉~122℉)
Charge: 0℃ ~ 40℃ (32℉~104℉)
Storage: -20℃ ~ 40℃ (-4℉~104℉)
Float Voltage2.23 - 2.27 V/cell
Equalize Voltage2.33 - 2.37 V/cell
Mounting OrientationHorizontal only
Intercell ConnectorsLead plated copper bars
Self DischargeLess than 10% after 90 days, can be stored up to 6 months at 25℃ (77℉);
Fully recharging is required before usage, and charged sooner if stored at higher temperature than 25℃ (77℉).
Design LifeUp to 15 Years in Standby Service at 25℃
Eurobat (20℃) : 12 years and longer, Long Life

2 Volt Battery Terminal

Battery Terminal

2 Volt Battery Applications

  • Telecom Applications

  • Power Plants and Substations

  • Signaling and Communication

  • Portable power supply

  • Rural Power Systems

  • Uninterruptible Power Supply (UPS)

  • Electricity-generation Stations

  • CATV Backup Applications

  • Solar Energy Storage

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1) Nice Appearance
European Low Profile style & streamline shape design gives the battery elegant look.
2) Longer Service Life
Unique plate elongating self absorbed technology can effectively prolong the service life.
3) Maintenance-Free Operation 
Absorbent Glass Mat (AGM) technology ensures efficient gas recombination up to 99% and freedom from electrolyte maintenance. During the expected float service life of Prostar batteries, no need to check the specific gravity of the electrolyte or add water. 
4) Longer Float Service Life
A unique corrosion-resistant grid alloy & special lead paste formulations ensures the batteries have excellent recovering ability upon over discharging and longer float service life. 
5) Low Self Discharge
Using high purity raw materials ensures Prostar batteries have less self-discharge. 
6) Environmental & Non-polluting
Gas Recombination technology ensures the battery high seal reacting rate, which can prevent the acid fog from separating out.
7) Safe & Reliable
Efficient venting system automatically release excess gas when the pressure rises above the normal level & reseals the valves when it returns to the normal rate, which can protect the battery from bursting.

2 Volt Battery Characteristics

Nominal Voltage2V
 Nominal Capacity (10 hour rate)200Ah
20 hour rate (10.6A)212Ah
5 hour rate (35.4A)177Ah
1 hour rate (110A)110Ah
Internal ResistanceFull Charged Battery 25℃≤0.47mΩ
Capacity affected by Temperature
(10 hour ) 
40℃ (104°F)102%
25℃ (77°F)100%
0℃ (32°F)85%
-15℃ (5°F)65%
25℃(77°F) Capacity
after 3 month storage90%
after 6 month storage80%
after 12 month storage62%
Charge (Constant Voltage) 25℃(77°F)Float Initial Charging Current Less than 30A
Voltage 2.23-2.27V
CycleInitial Charging Current Less than 30A
Voltage 2.33-2.37V

2 Volt Battery Package

Battery DimensionsLength172mm
Total Height367mm
Box DimensionsLength186mm
Quantity Per Box1 PC per box
Net weight Per Cell13.0 kg±200g
Net weight Per Box13.0kg
Gross Weight13.5kg

Discharge Constant Current (Amperes at 77°F25°C)


Discharge Constant Power (Watts at 77°F 25°C)


   Prostar Battery Brochure

   Prostar VRLA Battery Capacity Testing Procedure

   Prostar 2V 200AH Lead Acid Battery Datasheet