VRLA Battery 12V 100AH | Dimension: 331x174x214x219mm
The 12V 100Ah deep cycle AGM battery is a high-performance, maintenance-free power solution. Manufacturers design it for solar energy storage, UPS backup systems, telecom, and off-grid applications. They build this battery with advanced AGM (Absorbent Glass Mat) technology. It delivers long cycle life and stable performance. It provides reliable power in demanding environments.
GRANKIA FG100-12 highest amp hour 12v 100ah deep cycle battery can power up most common appliances, such as a microwave, CPAP, coffee maker, laptop, and more.
Manufactured with thick absorbent glass mat (AGM) separators and advanced valve regulated technology, GRANKIA AGM Batteries save you from acid leakage and frequent maintenance. No acid leakage, no water refilling, and no harmful hydrogen gas.
Due to its outstanding performance, the valve regulated rechargeable 12v 100ah deep cycle battery is a favorite in a wide variety of applications. Maintenance-free and leak-proof, the battery is ideal for standby projects that require minimal monitoring.

FG100-12 highest amp hour 12v 100ah deep cycle battery
1.) AGM technology
AGM stands for Absorbent Glass Mat. In these batteries the electrolyte is absorbed into a glass-fibre mat between the plates by capillary action.
2.) Low self-discharge
Storing batteries at lower temperatures thus reduces the rate of self-discharge and preserves the initial energy stored in the battery.
3.) VRLA technology
VRLA stands for Valve Regulated Lead Acid, which means that the batteries are sealed. Gas will escape through the safety valves only in case of overcharging or cell failure.
4.) Puncture Resistant Case
Each of the 6 cells within this SLA battery is wrapped in a puncture resistant polyethylene envelope, so even if the outercase is pierced no leakage will occur.
5.) Maintenance-Free Design
Minimises technician time spent at site and on battery related callouts.



![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Users commonly use a 12V 100Ah battery in solar systems, UPS backup, RVs, and telecom applications where they require stable long-term power.
It depends on the load. For example, a 100W device can run for approximately 10 hours under ideal conditions.
Yes, AGM batteries are widely used in solar energy storage due to their maintenance-free design and reliable performance.
AGM batteries are more cost-effective, while lithium batteries offer longer lifespan and lighter weight.
| Nominal Voltage | 12V(6 cells per unit) | |||
| Design Floating Life @25℃ | 10 Years | |||
| Nominal Capacity @25℃(10 hour rate@10.00A,10.80V) | 100Ah | |||
| Capacity @25℃ | 20 hour rate (5.35A,10.5V) | 107.0Ah | ||
| 5 hour rate (17.6A,10.5V) | 88.0Ah | |||
| 1 hour rate (63.8A,9.6V) | 63.8Ah | |||
| Internal Resistance | Full Charged Battery@25℃ | ≤5.3mΩ | ||
| Ambient Temperature | Discharge | -20℃~50℃ | ||
| Charge | -20℃~50℃ | |||
| Storage | -20℃~50℃ | |||
| Max. Discharge Current@25℃ | 1000A(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 25A
Voltage 13.6-13.8V |
||
| Cycle Use | Initial Charging Current Less than 25A
Voltage 14.4-14.9V |
|||
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 | 180.5 | 106.3 | 80.5 | 63.8 | 37.5 | 27.6 | 18.6 | 16.2 | 12.7 | 10.5 | 5.55 |
| 1.67V | 170.5 | 100.7 | 77.4 | 61.9 | 36.3 | 26.7 | 18.3 | 15.9 | 12.6 | 10.3 | 5.50 |
| 1.70V | 160.1 | 97.8 | 74.6 | 59.5 | 35.3 | 26.0 | 17.9 | 15.6 | 12.4 | 10.2 | 5.42 |
| 1.75V | 150.0 | 93.5 | 71.3 | 57.1 | 34.4 | 25.4 | 17.6 | 15.3 | 12.2 | 10.1 | 5.35 |
| 1.80V | 140.7 | 90.1 | 68.7 | 55.1 | 33.1 | 24.6 | 17.2 | 15.0 | 12.0 | 10.0 | 5.30 |
Discharge Constant Powerper Cell (Watts at25°C)
| F.V/Time | 15min | 30min | 45min | 1h | 2h | 3h | 5h | 6h | 8h | 10h | 20h |
| 1.60V | 345.1 | 211.1 | 152.9 | 122.4 | 71.1 | 52.7 | 35.9 | 31.3 | 24.8 | 20.5 | 11.0 |
| 1.67V | 330.2 | 197.9 | 147.7 | 119.1 | 69.2 | 51.3 | 35.3 | 30.8 | 24.6 | 20.3 | 10.9 |
| 1.70V | 307.7 | 193.6 | 143.0 | 115.0 | 67.6 | 50.1 | 34.8 | 30.4 | 24.3 | 20.1 | 10.7 |
| 1.75V | 288.7 | 184.3 | 137.3 | 110.8 | 66.0 | 49.1 | 34.3 | 29.9 | 24.0 | 19.9 | 10.7 |
| 1.80V | 271.0 | 176.8 | 132.7 | 107.2 | 63.8 | 47.7 | 33.6 | 29.4 | 23.7 | 19.8 | 10.6 |