Yuasa NPL78-12IFR lead-acid battery with 12 Volt and 78 Ah

The Yuasa NPL78-12IFR is a maintenance-free VRLA industrial battery with 12 volts and 78 Ah (C20). It combines high performance reserves, long service life according to Eurobat Long Life, and a flame-retardant housing for maximum operational safety in professional applications.

Highlights at a glance

• Long service life: Eurobat Long Life 10 to 12 years, Yuasa service life up to 10 years at 20 °C.
• High capacity: 78 Ah with 20-hour discharge down to 1.75 V/cell, 72.1 Ah with 10-hour discharge down to 1.8 V/cell.
• Strong current output: up to 800 A for 1 second, 500 A for 1 minute.
• Very low impedance: less than 5 mΩ at 1 kHz for excellent load behaviour.
• Safe and robust: ABS housing according to UL94 V0, low-pressure relief valves.

Maximum performance for demanding applications

With low impedance and high short-term current capability, the NPL78-12IFR provides stable performance even for peak loads. It is the reliable choice for UPS systems, emergency and safety power supplies, telecommunications, industrial control systems and energy buffering in critical infrastructures.

Efficiency meets long service life

The float charging voltage is 13.65 V ±1 percent per block (2.275 V/cell) at 20 °C, with temperature compensation of minus 3 mV per cell and degree Celsius. For cyclic or boost charging 14.50 V ±3 percent per block (2.42 V/cell) is recommended, with compensation of minus 4 mV per cell and degree Celsius. For float charging no current limitation is required, for boost charging 19.5 A is specified. The valve-regulated construction reliably regulates cell pressure and supports low-maintenance operation.

Technology for flexible application possibilities

The permissible temperature range is broad: Discharge from minus 20 °C to plus 60 °C, charging from minus 15 °C to plus 50 °C, storage from minus 20 °C to plus 50 °C. The battery can be installed in almost any orientation except permanently upside down. M8 internal thread or bolt connections are available for electrical connection.

Characteristics

FAQs about the Yuasa NPL78-12IFR battery

What is the expected service life of the NPL78-12IFR?

The Yuasa NPL78-12IFR has the Eurobat classification Long Life, which indicates a service life of 10 to 12 years. Yuasa specifies a service life of up to 10 years at 20 °C.

For which applications is the battery suitable?

Typical applications are UPS systems, emergency and safety power supplies, telecommunications systems, industrial control systems and general buffer applications with high reliability requirements.

How is the battery installed?

Installation is possible in any orientation except permanently upside down. Connection is made via M8 internal thread or bolt connections. Please observe the tightening torque of 6 Nm, correct polarity and sufficient ventilation.

Is the housing flame retardant?

Yes, the housing is made of ABS and meets the UL94 V0 classification.

Which charging voltages are recommended?

For float operation 13.65 V ±1 percent per block at 20 °C with temperature compensation of minus 3 mV per cell and degree Celsius. For cyclic or boost charging 14.50 V ±3 percent per block with compensation of minus 4 mV per cell and degree Celsius. For float charging no current limitation is needed, for boost charging 19.5 A.

What is the NPL78-12IFR designed for?