Ritar FT12-100A · Telecom battery 12V 100Ah AGM
Specifications
| Brand | RITAR |
|---|---|
| Part number | FT12-100A |
| Voltage (V) | 12 |
| Capacity (C20) | 100 |
| Capacity (C10) | 100Ah (c10) |
| Technology | AGM |
| Length | 508.00 mm |
| Width | 111.00 mm |
| Height | 236.00 mm |
Ritar FT12-100A 12V 100Ah is a front-terminal telecom battery: designed for cabinets and racks where servicing is done from the front.
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

Stationary battery Ritar FT12-100A FT 100Ah 100A 12V
Designed for UPS, alarms, telecoms and emergency lighting, the Ritar FT12-100A from the FT range offers 100 Ah with AGM technology on permanent float charge. It replaces the original battery without adaptation in UPS, alarm and emergency systems with a 508 × 111 × 236 mm format: same 100 Ah capacity.
- Sealed and gas-free: suitable for cabinets and offices.
- Maintenance-free for its whole service life.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Long float life under permanent charge.
What the Ritar FT12-100A is for
The Ritar FT12-100A is designed for UPS, alarms, telecoms and emergency lighting: it sits on float charge and responds instantly to a mains failure. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 29 kg and M8 terminals.
Dimensions, polarity and mounting
The Ritar FT12-100A is made in the 508 × 111 × 236 mm format and weighs 29 kg. It uses M8 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.
The Ritar FT12-100A: FT range and AGM technology
The FT is the Ritar range the FT12-100A 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.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.
Ritar: the maker behind the FT12-100A
Ritar is one of the world's largest VRLA battery manufacturers. Its RA, RT, RL, HR and FT series equip UPS, telecoms and solar systems worldwide with very consistent quality. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Warranty and coverage
The Ritar FT12-100A 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.
Care and maintenance
Replace all the batteries in the set at once and avoid environments continuously above 25 °C. Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery.
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 24-48 working hours, the islands and the rest of the EU in 3 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.
Comparison: Ritar FT12-100A vs equivalents
The Ritar FT12-100A is interchangeable with these equivalent references: FT12-105 (Ritar).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 100Ah | AGM | €314.30 |
|
|
12V 105Ah | AGM | €367.30 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Frequently asked questions
Is the Ritar FT12-100A an AGM battery and what are the benefits of AGM?
Yes. The FT12-100A from Ritar uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for devices with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How is the Ritar FT12-100A battery installed in the vehicle?
In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
What is the service life of the FT12-100A model?
Expected lifespan of the Ritar FT12-100A is 5 to 8 years in mild-climate device use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the dimensions of the Ritar FT12-100A battery?
Dimensions (length × width × height) are 508×111×236 mm — also written as 508x111x236 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
What are the equivalents of the FT12-100A model?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level.
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