Yuasa Lead-acid battery with 12V and 78Ah - SWL2300E

The YUASA SWL2300E impresses with high power reserves, long service life and absolute reliability in industrial use. With 12 V nominal voltage, 78 Ah capacity and a constant power output of up to 2400 watts, this VRLA battery is in the top class among valve-regulated lead-acid batteries. Ideal for UPS systems, security technology, emergency power solutions and industrial control systems.

Highlights at a glance

• High power density: Delivers up to 2400 W with 10-minute discharge down to 9.6 V.
• Long-term operation: EUROBAT "Long Life" – up to 12 years service life.
• High discharge current: Up to 520 A for 1 second – ideal for peak loads.
• Maintenance-free: VRLA technology with reliable gas pressure regulation.
• Robust & safe: Housing made of ABS (UL94:HB), FR version on request (UL94:V0).

Reliable performance for critical systems

The SWL2300E is part of Yuasa's proven SWL series, developed for the highest demands in industrial environments. With a capacity of 78 Ah (10h rate) and 80 Ah (20h rate) as well as an impressive power output of 2400 W with a 10-minute discharge, the battery is particularly suitable for applications with high load fluctuations and constant power requirements.

Thanks to a maximum discharge current of 520 A for 1 second, even critical load peaks can be reliably intercepted. The internal resistance is only 7.71 mΩ in accordance with EN IEC 60896-21.

Durable, robust and efficient

The SWL2300E meets the EUROBAT classification "Long Life" (10–12 years) and thus offers a sustainable solution for uninterrupted power supply. The low self-discharge rate of only approx. 3% per month ensures that the battery remains ready for use even after prolonged storage.

The maintenance-free operation is based on VRLA technology with integrated safety valves for gas pressure regulation. The robust, flame-retardant ABS housing provides reliable protection against mechanical influences. The FR version with UL94:V0 is available on request.

Flexible installation and easy integration

The SWL2300E can be installed in any position up to 90° tilt to the vertical. The M6 connections with internal thread or stud connection enable simple and safe installation. No current limitation is necessary for float charging, and in cyclic operation the maximum charging current is 19.5 A.

The battery is certified to ISO 9001, ISO 14001 and ISO 45001 and meets the highest requirements for quality, environmental management and occupational safety.

FAQs about the Yuasa SWL2300E lead-acid battery

What are its dimensions and weight?

• Dimensions: 261 × 168 × 225 mm (L × W × H), ± tolerances according to manufacturer. 
• Weight: approx. 28–28.3 kg.

Which connections are installed?

It features temperature-compensated M6 screw connections with a recommended tightening torque of 4.8 Nm.

For which applications is the battery suitable?

Ideal for UPS systems, telecommunications, security and emergency lighting systems as well as photovoltaic storage thanks to high discharge capacity and long service life.

What charging voltages are recommended?

• Float/standby charging: 13.65 V/block (2.275 V/cell), temperature-compensated –3 mV/°C/cell.
• Cyclic/boost charging: 14.5 V/block (2.42 V/cell), -4 mV/°C/cell. Float current unlimited, cycle current max. 19.5A.

Are safety features integrated?

Each cell has a low-pressure relief valve for gas pressure equalisation. In addition, the VRLA technology with almost 100% oxygen recombination reduces gas development.