Yucel Y4-12 12V 4Ah VRLA Battery, FASTON 4.75 mm Terminals
About this product
The Yucel Y4-12 is a 12 V, 4 Ah VRLA battery, where VRLA means valve regulated lead acid. It suits installers and maintenance teams replacing a battery of this size in alarm, standby or other equipment. It measures 90 x 70 x 101 mm, weighs 1.5 kg typical and has FASTON 4.75 mm terminals.
Key features
- Standard 12 V block – 4 Ah at the 20-hour rate
- Fits most ways round – any position except permanently inverted
- Holds its charge in storage – capacity loss about 3% a month at 20°C
- No topping up – a valve regulated lead acid (VRLA) design
- Rated for commercial service – EUROBAT Standard Commercial, 3 to 5 years
- Quick connection – FASTON tab terminals, 4.75 mm, that push on and pull off
For installers
- Power: 12 V nominal. Float charge 13.65 V (±1%) at 20°C with no current limit; cyclic or boost charge 14.5 V (±3%) at 20°C, limited to 1 A.
- Mounting: 90 x 70 x 101 mm (L x W x H), 107 (±2) mm over the terminals. Any position except permanently inverted.
- Cabling: FASTON tab terminals, 4.75 mm. Check the existing leads carry the same size of connector.
- Compatibility: check the charger and the equipment's own battery and charging figures against these.
- Standards: IEC61056. Standard case ABS (UL94:HB); certifications include ISO 9001, ISO 14001 and UL.
Frequently asked questions
What size is the Y4-12?
90 mm long, 70 mm wide and 101 mm high, or 107 mm over the terminals, each ±1 mm (±2 mm over the terminals). It weighs 1.5 kg typical.
What charge voltage does it need?
13.65 V (±1%) on float and 14.5 V (±3%) for cyclic or boost charging, both at 20°C.
How long does it last?
Design life is 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 the standard case flame retardant?
No. The standard case is ABS rated UL94:HB; the flame retardant FR option uses a UL94:V0 case under its own code.
Can it go in a sealed box?
No. VRLA batteries release hydrogen, which mixed with air can become explosive, so do not install it in a sealed enclosure.
-
Download
- Y4-12 datasheet
Specifications
Dimensions
Specifications
| Brand | Yucel |
|---|---|
| Model | Y4-12 |
| Manufacturer Part Number (MPN) | Y4-12 |
| Series | Yucel VRLA |
| Nominal voltage | 12 V |
| Capacity, 20-hour rate (to 1.75 V per cell, 20°C) | 4 Ah |
| Capacity, 10-hour rate (to 1.75 V per cell, 20°C) | 3.7 Ah |
| Length | 90 (±1) mm |
| Width | 70 (±1) mm |
| Height | 101 (±1) mm |
| Height over terminals | 107 (±2) mm |
| Mass (typical) | 1.5 kg |
| Terminal | FASTON tab, 4.75 mm (quick fit and release) |
| Operating temperature, storage | -20°C to +60°C |
| Operating temperature, charge | -15°C to +50°C |
| Operating temperature, discharge | -20°C to +60°C |
| Capacity loss per month at 20°C | 3% approx |
| Case material | ABS (UL94:HB) |
| Float charge voltage at 20°C | 13.65 V (±1%); 2.275 V per cell (±1%) |
| Float charge temperature correction | -3 mV per cell per °C |
| Cyclic (boost) charge voltage at 20°C | 14.5 V (±3%); 2.42 V per cell (±3%) |
| Cyclic charge temperature correction | -4 mV per cell per °C |
| Float charge current limit | No limit |
| Cyclic charge current limit | 1 A |
| Maximum discharge current | 40 A for 1 minute |
| Impedance at 1 kHz | 40 mΩ |
| EUROBAT classification | Standard Commercial, 3 to 5 years |
| Design life at 20°C | Up to 5 years |
| Standard | IEC61056 |
| Installation | Any position except permanently inverted |
Dimensions
| Dimensions | 90 (±1) mm long x 70 (±1) mm wide x 101 (±1) mm high, 107 (±2) mm over terminals |
|---|
Yucel Y4-12 12V 4Ah VRLA Battery, FASTON 4.75 mm Terminals
