FG15-12 smf lead acid 12v 15ah vrla battery maintenance
VRLA Battery 12V 15AH | Dimension: 152x99x96x102mm
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
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
AGM Battery Characteristics
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12V VRLA Battery FAQ
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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.
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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.
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Is VRLA battery maintenance free?
VRLA batteries are considered “maintenance free” and require no addition of electrolyte or water.
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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 |
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| Cycle Use | Initial Charging Current Less than 4.35A
Voltage 14.4-14.9V |
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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 |
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