# KRONOBAT Batteries for UPS

> KRONOBAT UPS battery stand-by AGM, affordable, 7-100 Ah, 12V. KS7-12 to KS100-12, for home, SMB and server UPS use. 5-7 years service life. Dispatched within 24h.

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## Description

**KRONOBAT UPS batteries**: stand-by AGM technology for Uninterruptible Power Supplies, with capacities from 7 to 100 Ah in 12V and a 5-7 year float service life. The best-value UPS battery range in the Kronobat catalogue, from home UPS units to server racks.
Built for homes, SMBs and data centres looking for an **affordable UPS battery** that keeps the supply running through a power cut without sacrificing durability under permanent grid-connected use.

## KRONOBAT UPS: reliable backup during power cuts at the best price

The **KRONOBAT UPS** range uses stand-by AGM technology, specifically designed to work under continuous float charge (permanently connected to the UPS charger) for years without degrading, unlike a regular cycling battery. With a typical service life of 5-7 years in this regime, it offers the cost-reliability balance a home, SMB or data-centre UPS needs.

### KRONOBAT UPS models and applications

- **KS7-12** (7 Ah) — home UPS for PC, router and home electronics.
- **KS17-12** (17 Ah) — small office or SMB UPS.
- **KS50-12** (50 Ah) — server rack UPS.
- **KS100-12** (100 Ah) — telecom switchboard and higher-power UPS.

### How to choose your Kronobat UPS battery

Check the capacity (Ah) and the exact dimensions of the battery fitted in your UPS: replacing it with a higher-Ah unit, if the compartment allows, extends the runtime on each power cut. Use the [comparison tool](https://baterias.com/gb/comparator) to check at a glance which Kronobat KS model matches your equipment.

## Frequently asked questions about Kronobat UPS batteries

### **How long does a Kronobat UPS battery last?**

Under normal float use (permanently connected), typical service life is 5 to 7 years, depending on the ambient temperature where the UPS is installed.

### **Is it compatible with any UPS brand?**

Yes, as long as the capacity (Ah) is equal or higher and the physical dimensions match the UPS's battery compartment, regardless of the equipment's brand.

### **What's the difference between KS7-12, KS17-12, KS50-12 and KS100-12?**

Only the capacity (Ah) and therefore the runtime: from 7 Ah for a home PC UPS up to 100 Ah for telecom switchboards or high-power UPS units.

### **Why can't I use a car battery for the UPS?**

Because a starting battery isn't built for continuous float charge and degrades quickly under that regime; the stand-by AGM technology in these batteries is specifically designed for that permanent use.

Catalogue curated by our technical team. **12,245 Trustpilot reviews · 4.5/5**. 24-48 h delivery in mainland Spain and Portugal (orders before 6:00 pm); 14-day returns with free collection on the Iberian mainland.

## Products in this category

| Product | Brand | Price |
|---|---|---|
| [Stationary UPS battery Kronobat ES7-12 12V 7Ah AGM](https://baterias.com/gb/battery-12v-7ah-agm) | KRONOBAT | 19,60 € |

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-28*