FGG250-12 sealed maintenance free gel cell battery 12v 250ah
Gel Battery 12V 250AH | Dimension: 520x268x220x224mm
GRANKIA FGG250-12 sealed maintenance free gel cell battery 12v 250ah has no liquid inside, the electrolytes is in gel form and stand solid between positive and negative plate inside battery.
This sealed maintenance free gel cell battery 12v 250ah generally maintenance-free and vibration resistant. It also has a wide operating temperature range and a longer cycle life than AGM batteries.
GRANKIA gel battery grid technology is a lead antimony alloy grid mixture formulated specifically for use with T2 Technology. Thick grids reinforce the strength of the frame and reduce corrosion. The overall grid configuration is optimized to enhance current flow through the grid network providing exceptional battery performance, reducing downtime and lowering maintenance costs.
FGG250-12 sealed maintenance free gel cell battery 12v 250ah
Gel Cell Battery 12V 250AH Features
- Maintenance free, no need to add water
- Safe operation since no liquid inside
- Can be installed sideways ( upside-down is not recommended )
- Long cycle life
- Low self-discharge makes shelf life longer.
- Long standby life due to its ability to keep electrolyte inside and steady
- Performance stays high and stable until the end of life
- Tolerance to abuse and heat during operation, good for extreme weather
Deep Cycle 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
AGM Gel Battery Details
Battery Storage Characteristics
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Solar Gel Battery FAQ
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Is gel battery good for solar?
Solar gel batteries can be an excellent option for certain solar energy system setups that don’t require powering an entire residence or building. These batteries operate much like other lead-acid batteries but come with a few extra advantages. Deep-cycle gel batteries release less hydrogen gas during discharges.
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How do I know when my gel battery is fully charged?
The sealed AGM and gel cell battery voltage (fully charged) will be slightly higher in the 12.8 to 12.9 range. If you have voltage readings in the 10.5 volt range on a charged battery, that typically indicates a shorted cell. If you have a maintenance-free wet cell, the only ways to test are volt meter and load test.
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Which is better lithium or gel battery?
GEL batteries are the best for testing or less expensive solar projects. Lithium batteries are good for long-time installation and help avoid frequent substitution.
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| Nominal Voltage | 12V(6 cells per unit) | |||
| Design Floating Life @25℃ | 10 Years | |||
| Nominal Capacity @25℃(10 hour [email protected],10.80V) | 250Ah | |||
| Capacity @25℃ | 20 hour rate (13.88A,10.5V) | 277.6Ah | ||
| 5 hour rate (45.7A,10.5V) | 228.5Ah | |||
| 1 hour rate (184.8A,9.6V) | 184.8Ah | |||
| Internal Resistance | Full Charged Battery@25℃ | ≤2.0mΩ | ||
| Ambient Temperature | Discharge | -20℃~50℃ | ||
| Charge | -20℃~50℃ | |||
| Storage | -20℃~50℃ | |||
| Max. Discharge Current@25℃ | 2000A(5s) | |||
| Capacity affected by Temperature
(10 hr Capacity ) |
40℃ | 102% | ||
| 25℃ | 100% | |||
| 0℃ | 90% | |||
| -15℃ | 70% | |||
| Self-Discharge@25℃ per Month | 3% | |||
| Charge (Constant Voltage) @25℃ | Standby Use | Initial Charging Current Less than 50A
Voltage 13.6-13.8V |
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| Cycle Use | Initial Charging Current Less than 50A
Voltage 14.4-14.9V |
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Discharge Constant Current per Cell (Amperes at 25°C)
| F.V/Time | 15min | 30min | 45min | 1h | 2h | 3h | 5h | 6h | 8h | 10h | 20h |
| 1.60V | 422.1 | 262.6 | 188.4 | 184.8 | 101.4 | 74.1 | 47.7 | 40.5 | 29.1 | 26.00 | 14.43 |
| 1.65V | 404.5 | 255.6 | 183.4 | 179.9 | 99.5 | 72.8 | 47.0 | 39.8 | 28.8 | 25.75 | 14.29 |
| 1.70V | 386.9 | 248.6 | 178.3 | 174.9 | 97.7 | 71.4 | 46.4 | 39.0 | 28.6 | 25.50 | 14.15 |
| 1.75V | 369.3 | 241.5 | 173.3 | 170.0 | 95.3 | 69.7 | 45.7 | 38.3 | 28.3 | 25.25 | 14.01 |
| 1.80V | 351.8 | 234.5 | 168.3 | 165.0 | 93.0 | 68.0 | 45.0 | 37.5 | 28.0 | 25.00 | 13.88 |
Discharge Constant Powerper Cell (Watts at 25°C)
| F.V/Time | 15min | 30min | 45min | 1h | 2h | 3h | 5h | 6h | 8h | 10h | 20h |
| 1.60V | 787.2 | 489.8 | 351.4 | 344.7 | 189.1 | 138.2 | 89.0 | 78.3 | 54.3 | 48.5 | 26.9 |
| 1.65V | 754.4 | 476.7 | 342.0 | 355.4 | 185.6 | 135.7 | 87.7 | 77.0 | 53.8 | 48.0 | 26.7 |
| 1.70V | 721.6 | 463.6 | 332.6 | 326.2 | 182.1 | 133.2 | 86.4 | 76.0 | 53.3 | 47.6 | 26.4 |
| 1.75V | 688.8 | 450.5 | 323.2 | 317.0 | 177.8 | 130.0 | 85.2 | 74.8 | 52.7 | 47.1 | 26.1 |
| 1.80V | 656.0 | 437.3 | 313.8 | 307.7 | 173.4 | 126.8 | 83.9 | 73.5 | 52.2 | 46.6 | 25.9 |
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