Yuasa NP38-12I 12V 38Ah VRLA Battery, M5 Threaded Terminals
About this product
The Yuasa NP38-12I is a 12V 38Ah valve regulated lead acid (VRLA) battery for general purpose use. It suits installers and maintainers who need a large 12V battery on float or cyclic charge. It measures 197 x 165 x 170 mm, weighs 14.2 kg and has M5 female threaded terminals.
Key features
- 12V power in a large block – 12 V nominal and 38 Ah at the 20-hr rate
- No free acid inside – Absorbed Glass Mat construction
- Comes back after heavy use – good recovery from deep discharge
- Fits awkward spaces – can be installed and operated in any orientation except permanently inverted
- Planned service life – EUROBAT Standard Commercial 3 to 5 years, Yuasa design life up to 5 years at 20°C
- Slow loss in storage – capacity loss of about 3% per month at 20°C
For installers
- Power: float charge 13.65 (±1%) V at 20°C with no current limit. Cyclic or boost charge 14.5 (±3%) V at 20°C, limited to 9.5 A.
- Mounting: 197 (±1) x 165 (±1) mm, 170 (±2) mm high, 14.2 kg. Any orientation except permanently inverted.
- Cabling: Threaded terminal, M5 (F), female. Torque 2.45 Nm.
- Compatibility: check the equipment's own battery and charging figures against this one, and choose a suitable charger.
- Standards: EUROBAT Standard Commercial 3 to 5 years and VdS No: G 182024, with ISO9001, ISO14001 and ISO45001 certifications.
Frequently asked questions
What size is the NP38-12I?
197 (±1) mm long, 165 (±1) mm wide and 170 (±2) mm high. It has a mass of 14.2 kg.
What charge voltage does it need?
13.65 (±1%) V on float and 14.5 (±3%) V for cyclic or boost charging, both at 20°C. Use a charger set for lead acid batteries.
Can it be mounted on its side?
Yes. It can be installed and operated in any orientation except permanently inverted.
Can it go in a sealed box?
No. VRLA batteries release hydrogen gas which can form explosive mixtures in the air, so it must not be placed inside a sealed container.
How long does it last?
Yuasa gives a design life of up to 5 years at 20°C, and EUROBAT classes it Standard Commercial, 3 to 5 years. Heat and repeated deep discharge usually shorten real service life.
Is it flame retardant?
No, this one has the standard ABS case, rated UL94:HB. Yuasa also makes an FR version, rated UL94:V0.
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Download
- NP38-12I datasheet
Specifications
Dimensions
Specifications
| Brand | Yuasa |
|---|---|
| Model | NP38-12I |
| Manufacturer Part Number (MPN) | NP38-12I |
| Product type | Yuasa industrial VRLA battery |
| Nominal voltage | 12 V |
| 20-hr rate capacity | To 1.75V per cell at 20°C: 38 Ah |
| Length | 197 (±1) mm |
| Width | 165 (±1) mm |
| Height | 170 (±2) mm |
| Mass | 14.2 kg |
| Terminal type | Threaded terminal - M5 (F), female |
| Terminal torque | 2.45 Nm |
| Charge temperature | -15°C to +50°C |
| Discharge temperature | -20°C to +60°C |
| Capacity loss per month at 20°C | 3% approx |
| Case material | Standard ABS (UL94:HB) |
| FR version | UL94:V0 |
| Float charge voltage at 20°C | 13.65 (±1%) V |
| Float charge voltage per cell at 20°C | 2.275 (±1%) V/cell |
| Float voltage correction from standard 20°C | -3 mV |
| Cyclic or boost charge voltage at 20°C | 14.5 (±3%) V |
| Cyclic or boost charge voltage per cell at 20°C | 2.42 (±3%) V/cell |
| Cyclic voltage correction from standard 20°C | -4 mV |
| Float charge current limit | No limit |
| Cyclic or boost charge current limit | 9.5 A |
| EUROBAT classification | Standard Commercial 3 to 5 years |
| Yuasa design life at 20°C | up to 5 years |
| VdS (Germany) | VdS No: G 182024 |
| Third party certifications | ISO9001, ISO14001, ISO45001, UNDERWRITERS LABORATORIES Inc. |
| Construction | Absorbed Glass Mat, no free acid |
| Grids | Lead Calcium |
| Installation | Any orientation except permanently inverted |
| Handles | Must not be suspended by their handles (where fitted) |
Dimensions
| Dimensions | 197 (±1) mm long x 165 (±1) mm wide x 170 (±2) mm high |
|---|
Yuasa NP38-12I 12V 38Ah VRLA Battery, M5 Threaded Terminals
