YUASA NP
Yuasa NP1.2-12 12V 1.2Ah Sealed Lead Acid Battery
- Nominal voltage
- Nominal voltage 12 V
- Nominal capacity 20hr
- 20-hr rate Capacity to 1.75VPC at 20°C 1.2 Ah
- Nominal capacity 10hr
- 10-hr rate Capacity to 1.75VPC at 20°C 1.1 Ah
- Design life
- Yuasa design life @ 20°C up to 5 years
- Eurobat classification
- EUROBAT Classification: Standard Commercial 3 to 5 years IEC61056
- Float service life
- The expected service life is five years in float standby applications.
- Float charge current limit
- Float charge current limit No limit A
Overview
What it is and how it fits the system.
The Yuasa NP1.2-12 is an NP-Series 12 V Valve Regulated Lead Acid (VRLA) sealed lead acid battery rated 1.2 Ah at the 20-hour rate (1.1 Ah at the 10-hour rate). EUROBAT-classified as Standard Commercial 3 to 5 years (IEC61056), it offers a Yuasa design life of up to 5 years at 20C and an expected five-year service life in float standby applications. It floats at 13.65 V (2.275 V/cell) and accepts a cyclic boost charge of 14.5 V (2.42 V/cell) at 20C.
Technical overview
NP1.2-12 is a Yuasa NP-Series 12 V Valve Regulated Lead Acid (VRLA) sealed lead acid battery. It is rated at 1.2 Ah capacity at the 20-hour rate and 1.1 Ah at the 10-hour rate, both measured to 1.75 V per cell at 20°C. The battery carries an EUROBAT Standard Commercial classification of 3 to 5 years under IEC61056, with a Yuasa design life of up to 5 years at 20°C and an expected five-year service life in float standby applications.
Float charging is specified at 13.65 V (2.275 V per cell) with a tolerance of ±1%, while cyclic boost charging accepts 14.5 V (2.42 V per cell) at ±3%. Temperature correction factors are -3 mV/cell/°C for float charge and -4 mV/cell/°C for cyclic charge. The maximum discharge current for one minute is 12 A, and cyclic boost charge current is limited to 0.3 A, with no limit applied to float charge current. It supersedes the RB12FR model and is manufactured under ISO 9001 and ISO 14001 standards. For physical wiring and terminal details, consult the NP series installation documentation.
Specifications
Full technical data for this part.
| Nominal voltage | Nominal voltage 12 V |
|---|---|
| Nominal capacity 20hr | 20-hr rate Capacity to 1.75VPC at 20°C 1.2 Ah |
| Nominal capacity 10hr | 10-hr rate Capacity to 1.75VPC at 20°C 1.1 Ah |
| Design life | Yuasa design life @ 20°C up to 5 years |
| Eurobat classification | EUROBAT Classification: Standard Commercial 3 to 5 years IEC61056 |
| Float service life | The expected service life is five years in float standby applications. |
| Cycle service life | Depending upon the average depth of discharge, over a thousand discharge/charge cycles can be expected. |
| Float charge voltage at 20c | Float charge voltage at 20°C 13.65 (±1%) V 2.275 (±1%) V/cell |
| Cyclic boost charge voltage at 20c | Cyclic (or Boost) charge at 20°C 14.5 (±3%) V 2.42 (±3%) V/cell |
| Float charge voltage temperature correction factor | Float Charge voltage temperature correction factor (for variations from the standard 20°C) -3 mV/cell/°C |
| Cyclic charge voltage temperature correction factor | Cyclic Charge voltage temperature correction factor (for variations from the standard 20°C) -4 mV/cell/°C |
| Float charge current limit | Float charge current limit No limit A |
| Cyclic boost charge current limit | Cyclic (or Boost) charge current limit 0.3 A |
| Maximum discharge current 1 minute | 1 minute 12 A |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know