FG15-12 smf lead acid 12v 15ah vrla battery maintenance

VRLA Battery 12V 15AH | Dimension: 152x99x96x102mm

SKU: FG15-12 Category:

GRANKIA FG15-12 smf lead acid 12v 15ah vrla battery maintenance has the electrolyte absorbed in a fiber-glass mat separator. It is the most popular reserve power design because the electrolyte is captive, preventing it from spilling even when the case is punctured.

The charging reaction converts the lead sulfate at the negative electrode to lead. At the positive terminal the reaction converts the lead to lead oxide. As a by-product of this reaction, hydrogen is evolved. During the first part of the charging cycle, the conversion of lead sulfate to lead and lead oxide is the dominant reaction.

FG15-12 smf lead acid 12v 15ah vrla battery maintenance

FG15-12 smf lead acid 12v 15ah vrla battery maintenance

12V VRLA Battery Features

  • Low internal resistance allowing them to stand deep discharge currents
  • Adapted to deep cycling applications
  • Heavy Duty Grids
  • Long service life
  • Absorbed Glass Mat technology (great durability and vibration-resistance)
  • High purity raw material: low self discharge rate
  • Maintenance-free
  • ABS Containers (UL94HB or UL94V0)
  • Minimal self-discharge – ideal for seasonal use

Lead Acid Battery Applications

  • Uninterrupted power supply(UPS)
  • Automotive and traction applications
  • Lighting equipment, fire alarms and security systems
  • Communication and telecom system
  • Solar energy system
  • High current drain applications
  • Fire alarms and security systems
  • Portable VTR/TV, tape recorders, radios, etc.
  • Various power toys and recreational equipment
  • Emergency power supplies in power generation plants and substations
  • Golf Cart

Sealed Battery Details

Reliable and high performance lead acid battery

small lead acid battery terminal

AGM lead acid battery in series or in parallel connection

AGM Battery Characteristics

Lead Acid Battery Discharge Characteristics Lead Acid Battery Charging Characteristics
Lead acid battery effect of temperature on capacity Lead acid battery self discharge characteristics
Lead acid battery relationship for open circuit voltage and residual capacity Lead acid battery the relationship for charging voltage and temperature
Lead acid battery floating life on temperature Lead acid battery cycle life on DOD

12V VRLA Battery FAQ

  1. What is meant by VRLA battery?

    A valve regulated lead–acid (VRLA) battery, is a type of lead–acid battery characterized by a limited amount of electrolyte absorbed in a plate separator.

  2. Is a VRLA battery same as AGM?

    Sealed Lead Acid (SLA) and Valve Regulated Lead Acid (VRLA) are two different abbreviations for the same cell. Absorbed Glass Mat (AGM) is a form of SLA/VRLA in which the electrolytes are soaked into dividers across plates made out of sponge-like thin glass fibre matting.

  3. Is VRLA battery maintenance free?

 

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Nominal Voltage 12V(6 cells per unit)
Design Floating Life @25℃ 5 Years
Nominal Capacity @25℃(20 hour [email protected],10.50V) 14.5Ah
Capacity @25℃ 10 hour rate (1.36A,10.8V) 13.6Ah
 5 hour rate (2.59A,10.5V) 12.95Ah
1 hour rate (9.47A,9.6V) 9.47Ah
Internal Resistance Full Charged Battery@25℃ ≤15.0mΩ
Ambient Temperature Discharge -20℃~50℃
Charge -20℃~50℃
Storage -20℃~50℃
Max. Discharge Current@25℃ 210A(5s)
Capacity affected by Temperature

(10 hr Capacity )

40℃ 102%
25℃ 100%
0℃ 85%
-15℃ 65%
Self-Discharge@25℃ per Month 3%
Charge (Constant Voltage) @25℃ Standby Use Initial Charging Current Less than 4.35A

Voltage 13.6-13.8V

Cycle Use Initial Charging Current Less than 4.35A

Voltage 14.4-14.9V

 

Discharge Constant Current per Cell (Amperes at 25°C)

F.V/Time 5min 10min 15min 30min 45min 1h 2h 3h 5h 8h 10h 20h
1.60V 57.88 37.95 27.86 16.54 12.06 9.47 5.99 4.10 2.73 1.84 1.45 0.766
1.67V 55.13 36.37 27.26 16.26 11.86 9.16 5.88 4.02 2.69 1.80 1.43 0.752
1.70V 52.82 34.39 26.89 16.04 11.71 8.87 5.76 3.96 2.63 1.76 1.41 0.740
1.75V 50.34 32.79 25.46 15.52 11.41 8.60 5.66 3.87 2.59 1.75 1.39 0.725
1.80V 46.49 30.54 23.76 14.89 11.03 8.35 5.45 3.73 2.49 1.70 1.36 0.717

 

Discharge Constant Power per Cell (Watts at 25°C)

F.V/Time 5min 10min 15min 30min 45min 1h 2h 3h 5h 8h 10h 20h
1.60V 107.78 72.83 53.86 32.17 23.53 18.62 11.75 8.09 5.42 3.66 2.91 1.529
1.67V 103.28 69.88 52.82 31.71 23.22 17.98 11.54 7.94 5.31 3.61 2.88 1.506
1.70V 99.04 66.10 52.22 31.36 22.99 17.34 11.32 7.79 5.23 3.55 2.86 1.487
1.75V 94.87 63.11 49.55 30.41 22.43 16.70 11.11 7.64 5.12 3.53 2.81 1.456
1.80V 88.45 59.02 46.32 29.29 21.75 16.05 10.67 7.35 4.93 3.43 2.78 1.450