FG20-12 maintenance free sealed lead acid 12v 20ah battery
VRLA Battery 12V 20AH | Dimension: 181x77x167x167mm
GRANKIA FG20-12 maintenance free sealed lead acid 12v 20ah battery is designed to provide sustained power over a long period. It is important to note that although deep cycle batteries can be discharged up to 80%, strongly recommend not discharging below 45% to extend the life of the battery.
Lead–acid batteries are affected by their low temperatures. There is a serious decrease in both energy and power density at ambient temperatures below 10 °C.
FG20-12 maintenance free sealed lead acid 12v 20ah battery
12V 20AH Battery Features
- Low internal resistance allowing them to stand deep discharge currents
- Capable of high discharge rates.
- Heavy Duty Grids
- Long service life
- Absorbed Glass Mat technology (great durability and vibration-resistance)
- High purity raw material
- 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 Battery FAQ
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How long will a 20Ah battery last?
If a battery is rated at 20Ah capacity at 20HR, it means that the battery can discharge 1 Amp per hour over that 20 hour period. A High Rate Battery will typically be rated at 10HR or less.
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How long can a 12V battery run a TV?
On average a standard car battery will be able to power a TV for around 10 to 20 hours.
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Does Ah affect battery life?
In a broader sense, the amp hour rating does tell us a little bit about the battery’s capacity. For instance, a battery with a 10 Ah rating will last twice as long as a battery with a 5 Ah rating when used under similar conditions, but it does not mean that it will actually last 10 full hours.
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| Nominal Voltage | 12V(6 cells per unit) | |||
| Design Floating Life @25℃ | 10 Years | |||
| Nominal Capacity @25℃(20 hour rate@1.00A,10.50V) | 20Ah | |||
| Capacity @25℃ | 10 hour rate (1.88A,10.8V) | 18.8Ah | ||
| 5 hour rate (3.57A,10.5V) | 17.85Ah | |||
| 1 hour rate (13.06A,9.6V) | 13.06Ah | |||
| Internal Resistance | Full Charged Battery@25℃ | ≤14.0mΩ | ||
| Ambient Temperature | Discharge | -20℃~50℃ | ||
| Charge | -20℃~50℃ | |||
| Storage | -20℃~50℃ | |||
| Max. Discharge Current@25℃ | 300A(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 6.0A
Voltage 13.6-13.8V |
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| Cycle Use | Initial Charging Current Less than 6.0A
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 | 79.83 | 52.34 | 38.43 | 22.81 | 16.63 | 13.06 | 8.26 | 5.66 | 3.77 | 2.53 | 2.00 | 1.057 |
| 1.67V | 76.05 | 50.17 | 37.60 | 22.43 | 16.36 | 12.63 | 8.11 | 5.54 | 3.71 | 2.48 | 1.97 | 1.037 |
| 1.70V | 72.86 | 47.43 | 37.09 | 22.13 | 16.16 | 12.23 | 7.94 | 5.46 | 3.63 | 2.43 | 1.95 | 1.020 |
| 1.75V | 69.44 | 45.23 | 35.11 | 21.40 | 15.73 | 11.86 | 7.80 | 5.34 | 3.57 | 2.41 | 1.91 | 1.000 |
| 1.80V | 64.12 | 42.13 | 32.77 | 20.54 | 15.21 | 11.51 | 7.51 | 5.14 | 3.43 | 2.34 | 1.88 | 0.989 |
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 | 148.66 | 100.46 | 74.29 | 44.37 | 32.46 | 25.69 | 16.20 | 11.16 | 7.47 | 5.05 | 4.01 | 2.109 |
| 1.67V | 142.46 | 96.39 | 72.86 | 43.74 | 32.03 | 24.80 | 15.91 | 10.95 | 7.33 | 4.98 | 3.98 | 2.077 |
| 1.70V | 136.60 | 91.17 | 72.03 | 43.26 | 31.71 | 23.91 | 15.62 | 10.75 | 7.21 | 4.90 | 3.95 | 2.051 |
| 1.75V | 130.86 | 87.04 | 68.34 | 41.94 | 30.94 | 23.03 | 15.33 | 10.54 | 7.06 | 4.86 | 3.88 | 2.009 |
| 1.80V | 122.00 | 81.41 | 63.89 | 40.40 | 30.00 | 22.14 | 14.72 | 10.13 | 6.80 | 4.73 | 3.84 | 2.000 |
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