Power Sonic 12V 20Ah Sealed Lead Acid Battery - Flame Retardant (PG-12V21FR)
| Stock available | Qty | Delivery |
|---|---|---|
| Poole | 0 | None in Poole |
| UK Hub | 135 | 1 to 3 working days |
- Absorbent Glass Mat (AGM) sealed lead acid construction, maintenance-free
- Gas recombination technology for quick recovery of capacity during charge
- Flame-retardant (FR) version: ABS case and cover rated UL94 V-0
- 10-year float life class (per Power Sonic float life data)
Frequently bought together





Product details
The Power Sonic PG-12V21FR is a 12V 20Ah flame retardant sealed lead acid battery for fire alarm panels, security systems and emergency lighting standby power, with a UL94 V-0 rated case and a 10-year float life design.
The Power Sonic PG-12V21FR is a 12V sealed lead acid (SLA) battery from Power Sonic’s PG Series long life AGM range in the flame-retardant (FR) version, with a UL94 V-0 rated ABS case and cover. Power Sonic designs its PG long life AGM batteries for maximum reliability and extended float life, providing backup power for security, emergency lighting and critical standby systems.
Key features
- Absorbent Glass Mat (AGM) sealed lead acid construction, maintenance-free
- Gas recombination technology for quick recovery of capacity during charge
- Flame-retardant (FR) version: ABS case and cover rated UL94 V-0
- 10-year float life class (per Power Sonic float life data)
Frequently asked questions
What does FR mean on the PG-12V21FR?
FR is the flame-retardant version, with an ABS case and cover rated UL94 V-0.
What size is the PG-12V21FR?
It measures approximately 182 x 76 x 168 mm (L x W x H, ±2 mm) and weighs about 5.65 kg, with M5 terminals.
What is the design life?
The PG Series long life AGM range is in the 10-year float life class, per Power Sonic float life data.




