# Stationary UPS battery Fulbat FP6-4.5S 6V 4.5Ah AGM ![Stationary UPS battery Fulbat FP6-4.5S 6V 4.5Ah AGM](https://baterias.com/6518-home_default/battery-fulbat-fp6-4-5s-6v-4-5ah.jpg) > Fulbat FP6-4.5S stationary UPS battery 6V 4.5Ah AGM. FP General Purpose range. Dimensions 67Γ—67Γ—109 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Batteries for UPS / UPS](https://baterias.com/gb/batteries-for-sai-ups) β†’ [FULBAT](https://baterias.com/gb/fulbat) - **Canonical URL**: https://baterias.com/gb/battery-fulbat-fp6-4-5s-6v-4-5ah - **Language**: en-GB - **Brand**: FULBAT - **Reference**: BCOM-FULBAT-FP6-4.5S - **MPN**: FP6-4.5S - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULBAT | | Model | FULBAT FP General Purpose | | Voltage (V) | 6 V | | Largo | 67 mm | | Ancho | 67 mm | | Alto | 109 mm | | TecnologΓ­a | AGM | | Terminal type | S | | Capacity (C20) | 4.5 Ah | ## Quick description **Fulbat FP6-4.5S 6V 4,5Ah** is a stationary battery for backup power systems: UPS, alarms, telecom and emergency lighting. Long float-life under permanent charge and instant response to mains outages with no noticeable voltage drop. ### Why this stationary battery? - **Instant response** when the mains drop, no voltage dip - **Long life under 24/7 charge** optimised for permanent service - **Compatible with your system** existing UPS units and alarm control panels πŸ”Œ Voltage 6 V ⚑ Capacity 4,5 Ah C20 πŸ“ Dimensions 67Γ—67Γ—109 mm βš™οΈ Technology AGM ## Description ## Stationary battery Fulbat FP6-4.5S 4.5Ah 6V 6*V* Voltage 4.5*Ah* Capacity The **Fulbat FP6-4.5S** with AGM technology is a **4.5 Ah**, **6 V** backup battery for UPS, alarms, telecoms and emergency lighting. Its 67 Γ— 67 Γ— 109 mm make it the exact replacement for the 4.5 Ah battery fitted as standard to many UPS, alarm and emergency systems. - Standard format for UPS and emergency systems. - Low self-discharge and high reliability. - Instant response to mains failures. - AGM: faster recharging and better cycle resistance than a conventional battery. ### What the Fulbat FP6-4.5S is for Designed for UPS, alarms, telecoms and emergency lighting, the Fulbat FP6-4.5S 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 S terminals. ### Dimensions, polarity and mounting In terms of format, the Fulbat FP6-4.5S measures 67 Γ— 67 Γ— 109 mm (length Γ— width Γ— height). It uses S terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### Technology inside the Fulbat FP6-4.5S Fulbat builds the FP6-4.5S to the same standards as the rest of its catalogue; what changes between references is capacity, format and terminal position. 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. ### Fulbat: the maker behind the FP6-4.5S French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Official warranty The Fulbat FP6-4.5S 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 Β°C. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### Shipping, delivery and returns Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships. ## Frequently asked questions ### How is the Fulbat FP6-4.5S 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 this page. 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 (βˆ’) 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 β€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Fulbat FP6-4.5S battery last? Expected lifespan of the Fulbat FP6-4.5S is 4 to 7 years in regular use (depends on technology and climate). 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 measurements of the FP6-4.5S model? Dimensions (length Γ— width Γ— height) are 67Γ—67Γ—109 mm β€” also written as 67x67x109 mm β€” 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. ### Which batteries are equivalent to the Fulbat FP6-4.5S? 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 β€” 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. ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team β€” over 25 years of experience validating automotive batteries. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-04*