Ritar FT12-55 · Telecom battery 55Ah AGM
Specifications
| Brand | RITAR |
|---|---|
| Part number | FT12-55 |
| Voltage (V) | 12 |
| Capacity (C20) | 55 |
| Capacity (C10) | 55Ah (c10) |
| Technology | AGM |
| Length | 291.00 mm |
| Width | 106.00 mm |
| Height | 230.00 mm |
Ritar FT12-55 12V 55Ah is a network backup battery: long float life and stable output during mains outages.
Why this telecom battery?
- Instant responsewhen the mains drop, no voltage dip
- Long life under 24/7 chargeoptimised for permanent service
- Compatible with your systemexisting UPS units and alarm control panels
Where it fits: the Ritar FT12-55 is one of our cyclic batteries, belongs to our Ritar batteries and by capacity it sits among our 55Ah batteries.

Stationary battery Ritar FT12-55 FT 55Ah 12V
The 12 V, 55 Ah Ritar FT12-55 stationary battery from the FT range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. Measuring 291 × 106 × 230 mm, it is the direct replacement for UPS, alarm and emergency systems fitted from the factory with a 55 Ah battery of this format.
- Low self-discharge and high reliability.
- Standard format for UPS and emergency systems.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Instant response to mains failures.
What the Ritar FT12-55 is for
Designed for UPS, alarms, telecoms and emergency lighting, the Ritar FT12-55 is sealed, gas-free and suitable for technical cabinets and offices. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 18 kg and M6 terminals.
The Ritar FT12-55: FT range and AGM technology
The FT is the Ritar range the FT12-55 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Size, terminals and hold-down of the Ritar FT12-55
The Ritar FT12-55 is made in the 291 × 106 × 230 mm format and weighs 18 kg. It uses M6 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
What Ritar does differently
With more than twenty years making sealed lead batteries, Ritar offers general-purpose, long-life, high-rate and front-terminal ranges for every stationary application. We guarantee that every Ritar arrives new, charged and with the manufacturer's full warranty.
Usage and maintenance tips
Replace all the batteries in the set at once and avoid environments continuously above 25 °C. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
Warranty and coverage
The Ritar FT12-55 comes with the manufacturer's official warranty against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.
When you get it and how to return it
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 1 to 2 working days, the islands and the rest of the EU in 1 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
Other 55Ah batteries: We stock 26 models of 55 Ah to compare by price, technology and cold cranking: see all 55Ah batteries.
Recommended accessories
Frequently asked questions
Is this battery AGM? What is it for?
Yes: the FT12-55 from Ritar uses AGM (Absorbent Glass Mat) technology, a sealed lead-acid battery whose electrolyte soaks a glass-fibre mat. It withstands more cycles than a conventional battery and copes better with heat.
What are the measurements of the FT12-55 model?
Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close. It measures 291×106×230 mm in length × width × height, with the terminals included in the height.
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