FIAMM 12FGH23 AGM 12 V 5 Ah Faston 6.3 mm battery
FIAMM 12FGH23 AGM 12 V 5 Ah Faston 6.3 mm battery: 12 V 5 Ah VRLA AGM battery for UPS, security and standby power.
Check size, polarity, Faston 6.3 mm and charger compatibility.
FIAMM 12FGH23 AGM 12 V 5 Ah Faston 6.3 mm battery is a sealed VRLA AGM lead battery for UPS, alarms, emergency lighting and standby equipment.
Runtime cannot be calculated by simply dividing Wh by watts: power demand and discharge rate matter greatly, so this page explains the rating without unrealistic promises.
Why choose it for UPS and security
AGM technology holds electrolyte in glass fibre, requires no top-up and suits equipment designed for VRLA batteries.
Technical specifications 12FGH23
| Part number | 12FGH23 |
| Voltage | 12 V |
| Capacity | 5 Ah |
| Nominal energy | 60 Wh |
| Technology | VRLA AGM |
| Terminal | Faston 6.3 mm |
| Dimensions | 9 × 7 × 10.7 cm |
| Weight | 1.95 kg |
How to estimate runtime
Nominal energy is 12 V × Ah, but effective capacity falls at high loads. For UPS runtime use the manufacturer’s constant-power discharge table and the equipment’s end voltage.
Before replacement check size, polarity, Faston terminal, charger current and number of series batteries. Disconnect mains and battery as the UPS manual requires.
Frequently asked questions
Is it compatible with every UPS?
No. Voltage, allowed capacity, size, polarity, terminals and battery-pack configuration must match.
How long at a 100 W load?
Do not rely only on Wh divided by watts: rapid discharge reduces usable capacity. Use the FIAMM curve and include UPS efficiency.
Can I fit a higher capacity?
Only if the UPS maker permits it and charger, space, wiring and protection are suitable.
Is maintenance required?
No top-up is needed, but temperature, terminals, swelling and state of charge require inspection.
How is it disposed of?
It is a recyclable lead battery and must go to an authorised collection channel, never household waste.
