Yuasa NP12-12 Sealed Lead‑Acid (VRLA AGM) Battery, 12V 12Ah, Faston Terminals NP12-12

Introduction to the Yuasa NP12-12 and its key features

The Yuasa NP12-12 is a sealed, maintenance-free 12 V 12 Ah lead‑acid battery built with valve-regulated lead‑acid (VRLA) absorbed glass mat (AGM) construction. Designed for reliability in standby and cyclic applications, the NP12-12 is commonly used for UPS systems, CCTV and security installations, alarm panels and emergency lighting. Its compact footprint, Faston quick‑fit terminals and robust electrical performance make it a practical choice for installers and system designers seeking dependable backup power without the need for routine maintenance.

Key features at a glance:

• 12 V nominal voltage, 12 Ah capacity (20‑hr rate).
• AGM/VRLA design with lead‑calcium grids and gas‑recombination for low self‑discharge.
• Faston quick‑fit 6.35 mm terminals for fast, secure connections.
• Good recovery from deep discharge and suitability for both float (standby) and cyclic charging regimes.
• Compact dimensions (151 × 98 × 97.5 mm) and a mass of 4.05 kg, making it easy to handle and mount.

Detailed description of specifications and benefits

The NP12-12 packs a rich set of technical specifications into a compact, sealed package. Understanding these details helps clarify why this battery is a reliable choice for both commercial and domestic backup power needs.

• Nominal voltage:12 V.
• Capacity:12 Ah at the 20‑hour rate (to 10.5 V at 20°C); around 11.1 Ah at the 10‑hour rate (to 10.8 V at 20°C).
• Float (standby) charge voltage:13.65 V at 20°C (2.275 V/cell).
• Cyclic/boost charge voltage:14.5 V (2.42 V/cell).
• Charge current limit (cyclic):3 A.
• Maximum discharge currents:75 A (1 minute) and 360 A (1 second), with a short‑circuit current listed at 320 A.
• Internal resistance / impedance:Internal resistance ≈ 44.39 mΩ (EN IEC 60896-21); impedance at 1 kHz ≈ 16 mΩ — metrics that correlate with good high-current response and efficient power delivery.

• Dimensions:151 × 98 × 97.5 mm (L × W × H).
• Mass:4.05 kg — portable but robust.
• Terminal type:Faston quick‑fit 6.35 mm, which simplifies installation and replacement in equipment designed for spade connectors.
• Operating temperature ranges:Charging: -15°C to +50°C; Discharging: -20°C to +60°C; Storage (charged): -20°C to +60°C.
• Temperature compensation:Float -3 mV/°C/cell; cyclic -4 mV/°C/cell — important for correct charging in varying ambient conditions.
• Design life:Up to 5 years (EUROBAT commercial rating 3–5 years), reflecting the intended commercial/industrial duty cycle and manufacturing quality.

• Maintenance-free operation:As a sealed VRLA/AGM battery, the NP12-12 does not require watering or routine electrolyte checks, reducing service time and the need for specialised maintenance.
• Low self‑discharge and extended shelf life:The lead‑calcium grid alloy and gas recombination design limit self‑discharge and gassing, helping the battery hold charge during storage or infrequent use.
• Good deep discharge recovery:The NP12-12 recovers well from deep discharge events compared with some conventional sealed lead‑acid units, making it suitable for cyclic or emergency use.
• Robust performance under load:Low internal resistance and high short‑term discharge capability let the battery supply surge currents required by some inverters, alarms and motors in emergency situations.
• Simple installation:Faston terminals speed up installation and replacement, which is useful in multi‑battery systems or constrained spaces.

Use cases and scenarios where the NP12-12 excels

The Yuasa NP12-12 is a versatile battery suitable for a variety of standby and cyclic applications. Typical scenarios where it shines include:

• Uninterruptible Power Supplies (UPS):Small to medium UPS systems for consumer electronics, networking equipment and small office servers often require compact 12 V batteries. The NP12-12 offers predictable runtime and the surge capability to handle short inrush currents when switching to battery power.
• CCTV and security systems:Cameras, recorders and control panels benefit from the sealed, maintenance‑free design. The battery’s compact size and Faston terminals make it easy to integrate into camera housings and alarm cabinets.
• Alarm panels and access control:Security installations require dependable standby batteries that can remain on float charge for long periods; the NP12-12’s low self‑discharge and float voltage specification suit these needs.
• Emergency lighting:Emergency luminaires and exit signs often rely on compact VRLA batteries to meet building codes. The NP12-12 can provide the required autonomy while fitting into confined luminaire compartments.
• Portable test and instrumentation equipment:Where a sealed, spill‑proof battery is needed for safety and transport, the NP12-12’s sealed AGM chemistry fits well.

Comparisons with similar products on the market

When selecting a 12 V sealed lead‑acid battery, buyers commonly compare capacity, size, terminal type, cycle life and brand reputation. Here’s how the Yuasa NP12-12 typically stacks up:

• Vs. smaller or lower-capacity sealed batteries (e.g., 7–9 Ah):The NP12-12 provides greater runtime and better suitability for longer autonomy requirements. It’s a better fit where you need more reserve capacity without stepping up to a much larger battery size.
• Vs. larger capacity batteries (e.g., 18 Ah+):Larger batteries provide longer runtimes but at the cost of size, weight and sometimes higher initial expense. The NP12-12 is often chosen where space and weight constraints exist, and the required runtime is moderate.
• Vs. other AGM brands:Many reputable manufacturers (Panasonic, Exide, CSB/Duracell-styled lines) offer 12 Ah AGM batteries with similar specs. Differences will typically be in claimed cycle life, internal resistance, terminal options and warranty terms. Yuasa’s NP series is well regarded in industrial and security markets for consistent manufacturing and predictable performance.
• Vs. lithium alternatives (LiFePO4):Lithium batteries offer higher energy density and longer cycle life but at a significantly higher cost and different charging requirements. The NP12-12 remains attractive where compatibility with existing lead‑acid chargers, lower initial cost and simpler disposal logistics are priorities.
• Terminal and installation differences:The NP12-12 uses Faston 6.35 mm spade terminals — quick and widely supported. Some competitors use screw terminals or recessed connectors, which can be advantageous for permanent installations but slower to service in the field.

Customer feedback and user impressions

While formal customer testimonials for this specific SKU may vary by retailer and installation, common themes from users of Yuasa NP-series AGM batteries typically include:

• Reliability in standby applications — users report long periods on float without noticeable capacity loss when charged correctly.
• Simple installation — Faston terminals and the compact form factor make swapping batteries quick in many security and lighting enclosures.
• Good bang for the buck — buyers often cite predictable performance for the suggested retail price and a reasonable service life in commercial deployments.
• Compatibility — many installers appreciate that the NP12-12 fits into widely used battery trays and clips and works with standard 12 V charging regimes when temperature compensation is observed.

Note: as with any sealed lead‑acid battery, correct charging parameters and installation practices are critical to achieving the expected service life. Users who deviate from the recommended float and cyclic voltages or who expose batteries to extreme temperatures may see reduced life.

Conclusion: why the Yuasa NP12-12 is a strong choice

The Yuasa NP12-12 VRLA AGM battery strikes a balance between capacity, size and reliability for many standby and cyclic applications. Its sealed construction eliminates routine maintenance, while the Faston terminals and compact dimensions simplify installation. With solid electrical characteristics — including low internal resistance, respectable short‑term discharge capability and well‑specified charging parameters — it is well suited to UPS units, CCTV systems, alarm use and emergency lighting.

For users and installers seeking a dependable, cost‑effective 12 V 12 Ah solution from a recognised manufacturer, the NP12-12 represents a sensible option. By following the manufacturer’s charging recommendations and observing operating temperature limits, owners can expect up to several years of reliable service, making it an economical choice for both new installations and replacements.