FIAMM 12FGL100 AGM 12 V 100 Ah battery
FIAMM 12FGL100 AGM 12 V 100 Ah battery provides 100 Ah at 12 V (1200 Wh nominal) in a sealed VRLA AGM design.
For solar, standby and auxiliary power: size depth of discharge, charger and protection correctly.
FIAMM 12FGL100 AGM 12 V 100 Ah battery is a sealed VRLA AGM battery for solar, standby and auxiliary power, designed for reliable service without electrolyte top-ups.
Capacity and footprint must match the discharge profile. This page combines rating data with a conservative runtime example so available energy is not overstated.
Why choose a FIAMM AGM battery
AGM technology holds electrolyte in glass-fibre separators and internally recombines 99% of gases. Declared self-discharge for the range is below 2% per month at 25 °C.
- Capacity: 100 Ah
- Nominal energy: 1200 Wh
- Technology: VRLA AGM
Technical specifications 12FGL100
| Part number | 12FGL100 |
| Nominal voltage | 12 V |
| Capacity | 100 Ah |
| Nominal energy | 1200 Wh |
| Technology | VRLA AGM |
| Dimensions | 32.9 × 17.2 × 21.4 cm |
| Weight | 32.8 kg |
Practical runtime estimate
Nominal energy is 12 V multiplied by capacity in Ah. Lead-battery designs may limit depth of discharge to preserve life; temperature, age and load current also reduce actual runtime.
Use a charger or solar controller with the correct AGM profile. Protect the positive terminal, prevent short circuits and install securely with ventilation as stated in the manual.
100 W: 510 Wh / 100 W ≈ 5.1 h in the stated planning scenario.
Frequently asked questions
How much energy is actually usable?
Wh is a nominal value. At 50% depth of discharge and 85% inverter efficiency, useful AC energy is roughly 42.5% of nominal energy.
How long will a 100 W load run?
Divide estimated usable energy by 100 W. This is a planning example, not a guarantee; surges, temperature, ageing and discharge rate affect it.
Is it suitable for solar systems?
Yes, when controller voltage and charge current match FIAMM’s AGM profile and the battery-bank design.
Can several batteries be connected?
Only identical batteries of the same model, capacity, age and condition should be configured according to instructions, with symmetric cables and protection.
Is maintenance required?
No topping up is needed, but terminals, cleanliness, temperature, state of charge and any swelling or damage still require inspection.
