Yuasa NP12-12 is a 12 volt 12Ah valve-regulated, maintenance free battery. Since their introduction, Yuasa has set the standard for quality, reliability and excellence in the rechargeable sealed lead-acid battery market. This standard has been used as a benchmark in industries such as security, UPS backup, telecommunications, emergency lighting and medical equipment. Yuasa leads the race where the need for reliable and dependable power is required.

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The Yuasa Yucel NP12-12 is a maintenance-free, rechargeable 12V 12Ah sealed lead acid battery that is commonly used in alarm systems, emergency lighting and other stand-by power applications requiring a high-rate discharge.


Nominal voltage (V) 12
20-hr rate Capacity to 10.5V at 20°C (Ah) 12
10-hr rate Capacity to 10.8V at 20°C (Ah) 11.1
Length (mm) 151 (±1)
Width (mm) 98 (±1)
Height over terminals (mm) 97.5 (±2)
Mass 4.05
Terminal Type
FASTON – Quickfit / release (JST where stated) 6.35
Operating Temperature Range
Storage (in fully charged condition) -20°C to +60°C
Charge -15°C to +50°C
Discharge -20°C to +60°C
Capacity loss per month at 20°C (% approx.) 3
Case Material
Standard ABS (UL94:HB)
FR version available UL94:V0
Charge Voltage
Float charge voltage at 20°C (V)/Block 13.65 (±1%)
Float charge voltage at 20°C (V)/Cell 2.275 (±1%)
Float Charge voltage temp correction factor from standard 20°C (mV) -3
Cyclic (or Boost) charge Voltage at 20°C (V)/Block 14.5 (±3%)
Cyclic (or Boost) charge Voltage at 20°C (V)/Cell 2.42 (±3%)
Cyclic Charge voltage temp correction factor from standard 20°C (mV) -4
Charge Current
Float charge current limit (A) No limit
Cyclic (or Boost) charge current limit (A) 3
Maximum Discharge Current
1 second (A) 360
1 minute (A) 75
Short-Circuit Current & Internal Resistance
Internal resistance – according to EN IEC 60896-21 (mΩ) 44.39
Short-Circuit current – according to EN IEC 60896-21 (A) 320
Measured at 1 kHz (mΩ) 16
Design Life & Approvals
EUROBAT Classification: Standard Commercial 3 to 5 years
Yuasa design life at 20°C (yrs) up to 5



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