How long does an OPzS stationary battery last?

20 to 25 years at 20 °C in float, provided the electrolyte level is maintained and ambient temperature stays stable.

What's the difference between OPzS and OPzV?

OPzS uses liquid electrolyte and needs maintenance (water top-ups); OPzV uses sealed gel, needs no maintenance but has a somewhat shorter life (18-22 years).

Is a stationary battery compatible with any UPS or remote-control installation?

Yes, as long as the cell-bank voltage and the minimum capacity (Ah) required by the equipment are respected; the 2V cell format is an industry standard.

Why choose industrial AGM over OPzS?

Because it's sealed, needs no maintenance and mounts in any orientation, though its service life (10-12 years) is shorter than a well-maintained OPzS.

Stationary Batteries

Stationary batteries are built for systems that demand a very long service life (10-25 years) working in float: telecoms, remote control, electrical substations, industrial alarms, control instrumentation and high-power UPS/standby systems in data centres and hospitals.

Three technologies cover different needs: OPzS (flooded tubular lead-acid, 20-25 years), OPzV (sealed gel tubular, 18-22 years) and sealed industrial AGM standby (10-12 years). All optimised for slow, deep discharge with minimal self-discharge — the reference standby battery for UPS and telecom backup.

Subcategories

There are 307 products.

Sort by:

Showing 1-18 of 307 item(s)

RITAR

Ritar RT1290 stationary UPS battery 12V 9Ah AGM

12V

9Ah

AGM

151 × 65 × 100 mm

4,75(35)

€44.62 VAT incl.

TO BUY

RITAR

Ritar RT6120 stationary UPS battery 6V 12Ah AGM

12Ah

AGM

151 × 50 × 101 mm

4,74(30)

€33.25 VAT incl.

TO BUY

RITAR

Ritar RT1245 stationary UPS battery 12V 4Ah AGM

12V

4 5Ah

AGM

90 × 70 × 107 mm

4,79(38)

€30.65 VAT incl.

TO BUY

GENESIS

Genesis G16EP stationary UPS battery 12V 16Ah AGM

12V

AGM

180.8 × 75.9 × 166.9 mm

4,77(38)

€134.61 VAT incl.

TO BUY

RITAR

Ritar RT670 stationary UPS battery 6V 7Ah AGM

7Ah

AGM

151 × 34 × 100 mm

4,78(28)

€20.96 VAT incl.

TO BUY

RITAR

Ritar RT1250 stationary UPS battery 12V 5Ah AGM

12V

5Ah

AGM

90 × 70 × 107 mm

4,76(27)

€38.93 VAT incl.

TO BUY

RITAR

Ritar RT1232 stationary UPS battery 12V 3Ah AGM

12V

3 2Ah

AGM

134 × 67 × 67 mm

4,78(21)

€35.57 VAT incl.

TO BUY

RITAR

Ritar RT1272 stationary UPS battery 12V 7Ah AGM

12V

7 2Ah

AGM

151 × 65 × 100 mm

4,79(29)

€37.11 VAT incl.

TO BUY

RITAR

Ritar RT12120 stationary UPS battery 12V 12Ah AGM

12V

12Ah

AGM

151 × 98 × 101 mm

4,80(25)

€65.49 VAT incl.

TO BUY

RITAR

Ritar RT12180 stationary UPS battery 12V 18Ah AGM

12V

18Ah

AGM

181 × 77 × 167 mm

4,82(26)

€63.36 VAT incl.

TO BUY

RITAR

Ritar RT1223 stationary UPS battery 12V 2Ah AGM

12V

2 3Ah

AGM

178 × 35 × 67 mm

4,73(29)

€35.00 VAT incl.

TO BUY

RITAR

Ritar RT12280 stationary UPS battery 12V 28Ah AGM

12V

28Ah

AGM

166 × 175 × 125 mm

4,78(32)

€93.79 VAT incl.

TO BUY

LONG

Stationary battery Long WP1236W 12V 9Ah AGM

12V

9Ah

AGM

151 × 65 × 102 mm

4,76(51)

€18.54 VAT incl.

TO BUY

KRONOBAT

Deep-cycle battery Kronobat ES75-12 12V 75Ah AGM

12V

75Ah

AGM

260 × 170 × 205 mm

TO BUY

KRONOBAT

Deep-cycle battery Kronobat ES55-12 12V 55Ah AGM

12V

55Ah

AGM

226 × 135 × 214 mm

4,80(29)

€194.36 VAT incl.

TO BUY

KRONOBAT

Deep-cycle battery Kronobat ES50-12 12V 50Ah AGM

12V

50Ah

AGM

198 × 166 × 171 mm

TO BUY

KRONOBAT

Deep-cycle battery Kronobat ES45-12 12V 45Ah AGM

12V

45Ah

AGM

198 × 166 × 171 mm

TO BUY

KRONOBAT

Deep-cycle battery Kronobat ES34-12 12V 34Ah AGM

12V

34Ah

AGM

197 × 131 × 180 mm

TO BUY

Showing 1-18 of 307 item(s)

OPzS vs OPzV vs stationary AGM: which to choose

OPzS is the gold-standard stationary battery: thick tubular plates, liquid electrolyte, transparent cells with a level gauge. 20-25 year life at 20 °C, needing water top-ups every 1-3 years. OPzV is the sealed gel version — maintenance-free, 18-22 year life, ideal for unventilated technical rooms. Industrial AGM is the entry point to the stationary range: 10-12 year life, sealed, mountable in any orientation, the most common standby battery for lower-power UPS.

Typical stationary battery applications

Telecoms and phone masts — hours of backup during a mains outage.
Electrical substations and remote control — breaker start-up and SCADA systems.
UPS for data centres and hospitals — highly reliable standby backup with low self-discharge.
Industrial alarms and instrumentation for continuous process control.

How to choose between OPzS, OPzV and AGM

It depends on whether the installation allows periodic maintenance — OPzS then gives the longest life at the lowest cost per year — or needs to be sealed and maintenance-free — OPzV or industrial AGM. Space also matters: OPzV and AGM can go in rooms without forced ventilation thanks to their very low gas emission.

Leading stationary battery brands

Q-battery
Cyclon
Ritar RT/HR

Frequently asked questions about stationary batteries

How long does an OPzS stationary battery last?: 20 to 25 years at 20 °C in float, provided the electrolyte level is maintained and ambient temperature stays stable.
What's the difference between OPzS and OPzV?: OPzS uses liquid electrolyte and needs maintenance (water top-ups); OPzV uses sealed gel, needs no maintenance but has a somewhat shorter life (18-22 years).
Is a stationary battery compatible with any UPS or remote-control installation?: Yes, as long as the cell-bank voltage and the minimum capacity (Ah) required by the equipment are respected; the 2V cell format is an industry standard.
Why choose industrial AGM over OPzS?: Because it's sealed, needs no maintenance and mounts in any orientation, though its service life (10-12 years) is shorter than a well-maintained OPzS.

Catalogue curated by our technical team. 10,908 Trustpilot reviews · 4.4/5. 24h mainland delivery, free 14-day returns.

100% secure payment

Subscribe to our newsletter

Deals, news and battery tips. No spam.

Products

Information

Your account

Store information

Sale of batteries online at the best price
We only work top brand batteries
free advice
Excellent after-sales service

This website uses its own and third-party cookies to improve our services and show you advertising related to your preferences by analyzing your browsing habits. To give your consent to its use, press the Accept button.

More information

Functional cookies

Yes

Description and cookies

Functional cookies are strictly necessary to provide the services of the shop, as well as for its proper functioning, so it is not possible to refuse their use. They allow the user to browse through our website and use the different options or services that exist on it.


PHP_SESSID	baterias.com	The PHPSESSID cookie is native to PHP and allows websites to store serialised status data. On the website it is used to establish a user session and to pass state data through a temporary cookie, which is commonly known as a session cookie. These Cookies will only remain on your computer until you close your browser.	Session
PrestaShop-#	baterias.com	This is a cookie used by Prestashop to store information and keep the user's session open. It stores information such as currency, language, customer ID, among other data necessary for the proper functioning of the shop.	480 hours

Advertising Cookies

Yes

Description

These are cookies that collect information about the advertisements shown to users of the website. They can be anonymous, if they only collect information about the advertising spaces shown without identifying the user, or personalised, if they collect personal information about the user of the shop by a third party, for the personalisation of these advertising spaces.

Analytics cookies

Yes

Description

Collect information about the user's browsing experience in the shop, usually anonymously, although sometimes they also allow the user to be uniquely and unequivocally identified in order to obtain reports on the user's interests in the products or services offered by the shop.

Performance cookies

Yes

Description

These are used to improve the browsing experience and optimize the operation of the shop.

Other cookies

Yes

Description

These are cookies without a clear purpose or those that we are still in the process of classifying.

Online batteries · Varta distributor · 24h delivery · Batteries by capacity (Ah) · by size

Stationary Batteries

Subcategories

Renewable Energy Batteries

Batteries for UPS / UPS

Batteries for Electronic Devices

Batteries for emergency lights

Batteries for UPS / High Discharge UPS

Batteries for telecommunications systems

OPzS vs OPzV vs stationary AGM: which to choose

Typical stationary battery applications

How to choose between OPzS, OPzV and AGM

Leading stationary battery brands

Frequently asked questions about stationary batteries

Subscribe to our newsletter