VRLA Battery MP Series Battery 6-GFM-220F

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Product Description:

 Range summary:

The MP range VRLA batteries is designed with front terminal structure. The perfect design ensures MP series battery the high reliability and makes the installation quite simple and safe when placed on a standard relay rack tray or in a closed cabinet.

MP range VRLA battery is designed with high energy density and suitable for 19", 23" rack or cabinet, and also offers options of top connection and side of monoblocs connection.Mp range battery can be equipped with central gas collection system according to the requirement of customer.

The MP batteries are ensured the quality with NARADA's QA system according to the ISO9001 standard.

VRLA Battery MP Series Battery  6-GFM-220F

Technical feature:

  • AGM technology applied in MP range batteries.

  • Front-access terminal connections for fast and easy installation and maintenance

  • Suitable for 19", 23" rack or cabinet

  • Excellent special lead-tin-calcium formula alloy for Grids and plates

  • Mircoporous glass mats in low resistance as separator

  • Self-regulating pressure relief valve

  • 12+ years expectant Life under full float  service at 25oC(77oF)






Nominal Capacity:

  170Ah(C10)  170Ah(10 hours rate:)







Height with termial:




Compliant standards :

  • IEC60896-21/22

  • BS6290 part 4

  • Telcordia SR4228

  • Eurobatt guide

  • UL

  • Manufactured under system ISO9001(TUV)

Battery installation compliant with:

  • EN 50272-2 or local equivalents

Main application:

  • Telecommunications

  • Uninterruptible power supply (UPS)

  • Switchgear / utility

  • Other applications to provide integrated stored energy system

Products characteristics:

  • Recommended float charge voltage for 12V battery:

  • 2.25Vpc at 25oC(77oF)

  • Self discharge rate:< 2% per month at 25oC(77oF)

  • Shelf life: 6 six months at 25oC(77oF)

  • Valve regulated system, no water addition needed.


What is sulfation of batteries?

Sulfation is the formation or deposit of lead sulfate on the surface and in the pores of the active material of the batteries' lead plates. If the sulfation becomes excessive and forms large crystals on the plates, the battery will not operate efficiently and may not work at all. Common causes of battery sulfation are standing a long time in a discharged condition, operating at excessive temperatures, and prolonged under or over charging.

How long a battery can last?

The service design life of a battery are vary considerably with how it is used, how it is maintained and charged, temperature, and other factors.

Do batteries self-discharge when not in use?

All batteries, regardless of their chemistry, self-discharge. The rate of self-discharge depends both on the type of battery and the storage temperature the batteries are exposed to. However, for a good estimate, Narada batteries self-discharge approximately 4% per week at 80ĄăF.

How can I evaluate the health and charge state of a battery?

Routine battery examinations divulge irregularities in the charging system as well as in the batteries. The principle method is to examine the electrochemistry of the battery through hydrometric electrolyte inspection. As previously discussed, this important examination cannot be accomplished with sealed absorption or gel batteries. Voltage readings alone require experience to interpret. Hydrometric readings will uncover early warnings of overcharging or overdischarging before batteries are damaged. The state-of-charge and reliability of a lead acid battery can best be determined by the specific gravity of the electrolyte measured directly with a common bulb-type hydrometer with a glass float. We do not recommend the ball float type hydrometer. Specific gravity is a unit of measurement for determining the sulfuric acid content of the electrolyte. The recommended fully charged specific gravity of marine batteries is 1.255 to 1.265 taken at 80ĄăC More than .025 spread in readings between fully charged cells indicates that the battery may need an equalization charge. If this condition persists, the cell is failing and the battery should be replaced. Since water has a value of 1.000, electrolyte with a specific gravity of 1.260 means it is 1.260 times heavier than pure water while pure concentrated sulfuric acid has a specific gravity of 1.835.


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Q:What are the hazards of battery over discharge?
The battery discharge to the standard termination voltage when the internal resistance will become larger, the battery electrolyte concentration will become very thin, especially the battery plate micropores and battery plate surface these two points are almost neutral; battery over discharge because of Internal resistance will become larger, so the battery will appear inside the phenomenon of heat, the battery volume will appear fever expansion.
Q:How to repair the battery?
Charge the battery at constant voltage. It is the beginning of the time, using 0.1C ~ 0.25C current charge, to 16.2V later, by reducing the current method to maintain the charging voltage, until the charge current drops to 0.03C when the stop charging.
Q:What are the advantages of maintenance-free batteries?
Maintenance-free battery using lead-calcium alloy grille, the amount of water generated when charging less water evaporation is low, with the shell with a sealed structure, the release of sulfuric acid gas is also very little, so with the above advantages.
Q:How to determine the battery is good or bad?
Instrument test: the general use of battery discharge tester, the test instrument two positive and negative clamp were holding the battery positive and negative electrodes, press the test button to observe the test instrument instructions.
Q:What is a maintenanceable battery?
Maintenance-free battery due to its own structure on the advantages of electrolyte consumption is very small, in the life of the basic need not add distilled water.
Q:80ah how much battery storage capacity?
0AH storage is 80AH ah If the actual storage capacity will have to see the brand. I have seen 100AH only 24 pound. This is not even 60AH.
Q:Lead-acid battery how to maintain?
After 5 hours of repair, the excess electrolyte is sucked out with a straw, and if the electrolyte is sucked out into black, it indicates that the battery is severely grounded and that the battery is difficult to repair.
Q:How is the capacity of the battery defined?
100AH capacity of the battery, fully charged after the 100A current discharge can be an hour to put the power finished. 50A current is 2 hours put away! 20A is 5 hours! Of course this is the theoretical value, in fact it is impossible to have a constant current discharge.
Q:Maintenance-free battery how to detect it?
Battery pole Pole terminal has corrosive material without treatment, as long as no loose on it. If the appearance of the corrosive material, the inner surface of the terminal will also be corrosion, resulting in increased resistance, affecting the normal battery charging and discharge, it must be promptly processed.
Q:What kind of battery is divided into?
At present, we used the car battery is divided into three categories, namely, ordinary batteries, dry batteries and maintenance-free batteries three.

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