PHASAK 12V 18Ah Battery – PHB 1218
Sealed lead-acid (VRLA) 12V · 18Ah Battery for UPS, security, and emergency. The PHB 1218 delivers reliability, low self-discharge, and zero Maintenance for stable backup power.
Ideal as a replacement for PHASAK UPS units and critical applications.
Description
12V 18Ah VRLA Battery for UPS and security
The PHASAK PHB 1218 is a sealed lead-acid (VRLA) 12V, 18Ah battery, designed to ensure a stable and safe supply in uninterruptible power systems, alarms, CCTV, and emergency lighting. Its sealed, spill-proof, maintenance-free construction makes installation easy and ensures consistent performance in float use.
Key benefits
- 24/7 reliability against outages and micro-outages.
- Low self-discharge and good float stability.
- Zero Maintenance: sealed VRLA technology.
- Compact format for quick replacement in compatible UPS units.
Typical applications
- UPS for IT, retail, and small industry.
- Alarm systems, video surveillance, and access control.
- Emergency lighting and signage.
Compatibility
Suitable for PHASAK UPS units and other equipment requiring 12V · 18Ah with the same format and terminal type. We recommend checking dimensions and terminals before replacement.
Usage recommendations
- Observe polarity and the tightening torque specified by the equipment manufacturer.
- In installations with multiple batteries, use identical models of similar age.
- Keep environmental conditions within the recommended ranges to maximize service life.
See the PHASAK catalogue (PDF) to view the full range of batteries and accessories.
Additional information
| Weight | 3 kg |
|---|---|
| Dimensions | 15.1 × 9.4 × 9.8 cm |
| Nominal Voltage | 2 V |
| Battery type | Sealed Lead-Acid |
| Safety valve | Rubber |
| Battery capacity | 18.0 Ah |
| Terminal type | T3/T12 |
| Torque | N/A |
| Internal resistance | 15.0 |
| Width | 181 |
| Height | 167 |
| Depth | 77 |
| Weight | ~ 5.20 kg |
| Nominal temperature | 25 ± 3ºC |
| Discharge range | -15ºC ~ 50ºC |
| Charging range | -10ºC ~ 50ºC |
| Storage range | -20ºC ~ 50ºC |
| Float voltage | -18 mV / ºC/Block |
| Cycle use voltage | -30 mV / ºC/Block |
| Maximum charging current | 5.40 A |
| Maximum discharge current | 270 A |
| Component | RAW |
| Positive terminal | Lead Dioxide |
| Negative terminal | Lead |
| Container | ABS (V-0 opt.) |
| Separator | AGM |
| Electrolyte | Sulphuric Acid |
| Terminals | Copper |
| Capacity | 18 Ah |
| Terminals | T3/T12 |
