Sealed AGM Rechargeable Battery NPP NP4-4.5Ah 4V, 4.5 Ah, T1/F1 terminals

Sealed AGM rechargeable battery NPP NP4-4.5Ah 4V offers a compact, valve-regulated power source with a nominal voltage of 4 volts and a capacity of 4.5 ampere-hours. The battery uses absorbent glass mat (AGM) technology and T1/F1 terminal types to deliver maintenance-free operation and leak-proof performance. It is designed for both standby and cyclic applications that require a low-profile, reliable power supply and long shelf life.

Advantages

The valve-regulated sealed construction prevents electrolyte leakage and reduces maintenance needs compared with flooded lead-acid cells. AGM design provides low internal resistance for consistent discharge and recharging behaviour, while the compact format and standardized T1/F1 terminals ensure straightforward installation in confined spaces. The battery is suitable for repeated charge–discharge cycles as well as long-term standby service, offering predictable performance in a range of environmental conditions.

Suitable for

• Uninterruptible power supplies (UPS) and backup power modules
• Security and alarm systems
• Emergency lighting and safety systems
• Portable electronic devices and field equipment requiring compact maintenance-free power

Key specifications

• Nominal voltage: 4 V
• Capacity: 4.5 Ah
• Battery type: Sealed AGM (Absorbent Glass Mat)
• Terminals: T1/F1 style
• Design: Valve-regulated, maintenance-free

How to use

Install the battery in the device following the equipment manufacturer's polarity and terminal connection instructions, ensuring the T1/F1 terminals are correctly engaged. Use a compatible charger or power management system designed for sealed lead-acid/AGM batteries and observe recommended charge voltages and current limits for 4 V AGM batteries. Avoid overcharging and deep discharges to prolong service life; allow the battery to rest and reach room temperature before charging if it has been exposed to extreme cold or heat.

Usage recommendations

For optimal longevity, store the battery in a cool, dry place and maintain a partial state of charge during long-term storage. Periodically check voltage and recharge as needed to prevent excessive self-discharge. When replacing batteries in critical systems such as UPS or emergency lighting, verify compatibility with device voltage and terminal type and follow local regulations for battery handling and disposal.