Ma batterie actuelle ressemble à celle-ci, est-ce que la Batterie AGM 12V 18Ah Ultracell UL18-12 est compatible avec mon système d'alarme/onduleur ?

That’s an excellent question to ensure compatibility! The ULTRACELL UL18-12 battery is designed to be a direct replacement for many 17Ah, 18Ah, or 19Ah batteries, including models such as the NP17-12. It’s perfect for replacing a battery in an alarm system, a UPS, or for emergency lighting. To be sure, double-check that your current battery has a voltage of 12V, a capacity of around 17–19Ah, and, most importantly, that the dimensions (181.5 x 77 x 167.5 mm) and terminal type (M5 screws, also known as F18) match our UL18-12 model. If so, there’s a good chance this is the right battery for you!

J'ai besoin d'une batterie sans entretien pour mon onduleur (UPS). Est-ce que la ULTRACELL UL18-12 convient ?

Absolutely! The ULTRACELL UL18-12 battery is a sealed AGM VRLA battery, which means it is completely maintenance-free. You don’t need to add water or do anything else. It’s designed to be sealed and can be installed in most positions (except upside down). This makes it an excellent choice for your UPS, where reliability and low maintenance are essential.

Quelle est la durée de vie attendue pour cette Batterie AGM 12V 18Ah Ultracell et comment puis-je en prendre soin ?

The ULTRACELL UL18-12 battery has an estimated service life of 3 to 5 years at a temperature of 20°C. To maximize its lifespan, it is best to avoid high temperatures and repeated deep discharges whenever possible. It is designed for “float” applications (continuous charging, such as for UPS systems and alarms) or moderate cycling. Make sure it is fully charged and not subjected to constant overcharging. It requires no maintenance, but proper use will allow you to take full advantage of its 3- to 5-year expected lifespan.

Je vois qu'elle remplace la NP17-12. Est-ce que l'installation est compliquée ou dois-je acheter des adaptateurs ?

No, the whole point of this battery is to make replacement easier! The ULTRACELL UL18-12 battery is designed to be a direct replacement for models like the NP17-12, thanks in particular to its standard M5 (F18) screw terminals and compatible dimensions. In most cases, you should be able to connect it using the same cables as your old battery. Adapters are usually not needed. Just be sure to check that your cables are the right gauge for the M5 terminals before ordering, but this is very common.

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ULTRACELL UL18-12 12V 18Ah AGM Battery – Sealed VRLA with M5 F18 Terminals – Replaces NP17-12

Name: Batterie AGM 12V 18Ah ULTRACELL UL18-12 – VRLA Étanche Bornes M5 F18 – Remplace NP17-12
SKU: UL18-12
Price: 59 EUR
Availability: InStock

AcedisSKU: UL18-12

ULTRACELL UL18-12 12V 18Ah sealed, maintenance-free AGM lead-acid battery with M5 F18 terminals for alarms, UPS systems, and emergency power.

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The Ultracell UL18-12 12V 18Ah AGM battery is a sealed VRLA lead-acid battery. It delivers reliable, high energy performance.

It is designed for continuous backup applications. It is also suitable for moderate, everyday use.

Maintenance-free and completely sealed, this unit ensures maximum safety. It can be installed in any position.

Its standard 17–19Ah size with M5 screw terminals allows for direct replacement. Quickly replace your old, worn-out batteries.

ULTRACELL technology ensures consistent reliability. It is used in alarms, UPS systems, and various professional security devices.

Reliability of the Ultracell 12V 18Ah AGM Battery

Technical Specifications

Part Number: UL18-12. Technology: Sealed AGM VRLA lead-acid. Voltage: 12 V. Capacity: 18 Ah (C20). This part is sturdy and durable.

Dimensions: 181.5 × 77 × 167.5 mm. Weight: 5.7 kg. Terminals: M5 screws (F18). Polarity: positive terminal on the right for easy and safe installation.

Housing: UL94-HB ABS. Service life: 3 to 5 years at 20°C. Rechargeable: Yes. Maintenance-free. Enjoy stable power over the long term.

Main Applications

Professional alarm control panels and UPS systems. Fire safety systems. High-performance emergency lighting for your facilities.

Trolem golf carts and telecommunications. Home automation and garage doors. This versatile unit meets all your essential needs.

12V electric scooters and kick scooters. Low-power solar systems. Medical equipment and self-propelled lawn mowers.

As with "all batteries," regular maintenance maximizes their lifespan. Take good care of all your electrical equipment.

The "all-battery" concept requires storage in a cool place. Avoid deep discharges to preserve the internal chemistry of the AGM lead-acid batteries.

Compatible Equivalents

NP17-12, NP15-12, and STD19. Bosch D1218 and Yuasa NP17-12. CSB GP12170 and Vision CP12170. Replace your old brands with ease.

Power Sonic PS12180 and Fiamm FG21803. This unit meets the most stringent replacement requirements in today's off-grid power market.

👉 Compatible with standard 12V 17Ah / 18Ah / 19Ah batteries. Check the overall height and the type of M5 terminal before making a final purchase.

Choose long-lasting performance with this leading European product. It protects your sensitive equipment against power outages.

NP17-12
NP15-12
STD19
Bosch D1218
Yuasa NP17-12
CSB GP12170
Vision CP12170
Power Sonic PS12180
Fiamm FG21803
Alarms
UPS / Inverters
Emergency Lighting
Trolem Golf Cart
Telecommunications
Home Automation
Security Systems