Yuasa SWL+2000 Industrial VRLA battery - 12V / 57.6Ah (High Performance)

The Yuasa SWL+2000 is a high-performance monobloc from the advanced SWL+ (Plus) series. With a nominal capacity of 57.6 Ah (often specified on a C10 or C20 basis, depending on the datasheet), this 12V battery offers outstanding energy density in a compact form factor.

It represents the technological upgrade to classic battery models (such as the SWL1800 or NPL series). By optimising the internal plate structure and using the hybrid pure lead grid, the SWL+2000 delivers significantly higher discharge currents per cell, making it the ideal choice for modern, high-load UPS systems and critical emergency power supplies.

Highlights at a glance

• Performance increase (High Rate): The SWL+ series is specially designed to deliver extremely high amounts of energy in a short time (high wattage per cell). The SWL+2000 provides more power than standard AGM batteries of the same size, bridging critical seconds during mains switching.
• Eurobat "Very Long Life": Classified for a service life of 12+ years (design life up to 15 years under optimum conditions). This ensures long-term planning certainty and significantly reduces replacement intervals in data centres.
• Specific capacity (57.6 Ah): With 57.6 Ah, this block closes the gap between the smaller 40Ah blocks and the large 70Ah models. It offers the perfect balance of capacity and footprint for medium-sized UPS cabinets.
• Advanced grid alloy: Thanks to the HT Element X or comparable hybrid alloys, internal corrosion is minimised and gas recombination is optimised. This ensures low self-discharge and high tolerance against "float charge" (continuous charging).
• VRLA-AGM technology: The electrolyte is completely bound in glass fibre fleece (AGM). The battery is leak-proof, maintenance-free (no refilling of water) and is equipped with safety valves for pressure regulation.
• Robust housing: Made from durable ABS plastic. (Note: When ordering, check whether you require the standard version or the FR version with flame-retardant UL94 V-0 housing).

Areas of application

The SWL+2000 is primarily designed for standby applications with high power requirements:

• Uninterruptible power supply (UPS): Server rooms, IT infrastructure.
• Emergency lighting systems: According to VDE 0108 / EN 50171.
• Telecommunications: Buffering of transmission towers.
• Energy providers: Control technology in switchgear.

Assembly & operation

• Charging voltage: In standby parallel operation (float), 2.275 V/cell (±1%) at 20°C are required. This corresponds to 13.65 V for the block.
• Tightening torque: The M6 terminal bolts should be tightened to approx. 4.8 Nm. Use insulated tools to avoid short circuits when mounting in the rack.
• Storage: Thanks to low self-discharge (<3% per month), the battery can be stored. Recharge should be carried out at the latest after 6 months to prevent sulphation.

Features

FAQs about the Yuasa SWL+2000

What does "SWL+2000" mean? Is that the capacity?

No. The number "2000" in the Yuasa nomenclature often refers to the power in watts per block (for a short discharge, e.g. 10 min). It indicates that this battery has a very high power density. The capacity is, as specified by you, 57.6 Ah.

Does this battery replace the older SWL1800?

Yes, often. The SWL1800 also had 57.6 Ah. The SWL+2000 is the modern upgrade with improved high current performance (hence the higher number 2000 vs. 1800) and often longer life (Plus series). The mechanical dimensions are usually compatible.

Is the battery suitable for solar installations?

Rather not. The SWL+ series is optimised for standby operation (continuous charging, seldom discharged with high current). For solar installations where the battery is charged and discharged daily (cyclical operation), batteries like the Yuasa NPC or REC series are much better suited.