YUASA NP
Yuasa NP2.8-12 12V 2.8Ah Industrial VRLA Battery
- Nominal voltage
- 12 V
- Capacity 20hr rate
- 20-hr rate Capacity to 10.5V at 20°C (Ah) 2.8
- Capacity 10hr rate
- 10-hr rate Capacity to 10.8V at 20°C (Ah) 2.5
- Internal impedance
- Impedance Measured at 1 kHz (mΩ) 60
- Max discharge current 1s
- 1 second (A) 84
- Max discharge current 1min
- 1 minute (A) 28
- Float charge voltage block
- Float charge voltage at 20°C (V)/Block 13.65 (±1%)
Overview
What it is and how it fits the system.
The Yuasa NP2.8-12 is an industrial Valve-Regulated Lead-Acid (VRLA) battery rated 12 V and 2.8 Ah at the 20-hour rate (2.5 Ah at the 10-hour rate). It has an internal impedance of 60 mΩ at 1 kHz and supports a maximum discharge current of 84 A for 1 second and 28 A for 1 minute. 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
The Yuasa NP2.8-12 is an industrial Valve-Regulated Lead-Acid (VRLA) battery rated 12 V and 2.8 Ah at the 20-hour rate (2.5 Ah at the 10-hour rate). It has an internal impedance of 60 mΩ at 1 kHz and supports a maximum discharge current of 84 A for 1 second and 28 A for 1 minute. 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 20°C.
The battery’s float charge voltage at 20°C is specified as 13.65 V (±1%) for the block and 2.275 V (±1%) per cell. Cyclic or boost charge voltage is 14.5 V (±3%) at block level and 2.42 V (±3%) per cell. Float charge current has no stated limit, while cyclic charge current is limited to 0.7 A. Storage capacity loss is approximately 3% per month at 20°C, and the nominal length is 134 mm (±1 mm).
Specifications
Full technical data for this part.
| Nominal voltage | 12 V |
|---|---|
| Capacity 20hr rate | 20-hr rate Capacity to 10.5V at 20°C (Ah) 2.8 |
| Capacity 10hr rate | 10-hr rate Capacity to 10.8V at 20°C (Ah) 2.5 |
| Internal impedance | Impedance Measured at 1 kHz (mΩ) 60 |
| Max discharge current 1s | 1 second (A) 84 |
| Max discharge current 1min | 1 minute (A) 28 |
| Float charge voltage block | Float charge voltage at 20°C (V)/Block 13.65 (±1%) |
| Float charge voltage cell | Float charge voltage at 20°C (V)/Cell 2.275 (±1%) |
| Cyclic charge voltage block | Cyclic (or Boost) charge Voltage at 20°C (V)/Block 14.5 (±3%) |
| Cyclic charge voltage cell | Cyclic (or Boost) charge Voltage at 20°C (V)/Cell 2.42 (±3%) |
| Float charge current limit | Float charge current limit (A) No limit |
| Cyclic charge current limit | Cyclic (or Boost) charge current limit (A) 0.7 |
| Storage capacity loss per month | Storage Capacity loss per month at 20°C (% approx.) 3 |
| Length | Length (mm) 134 (±1) |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know