Lead‑acid rechargeable battery MaxPower 12V 7.5Ah BAT0403 for sealed applications

MaxPower 12V 7.5Ah BAT0403 is a sealed lead-acid rechargeable battery designed for compact, maintenance-free power in standby and cyclic applications. The battery delivers a stable 12V output and a rated capacity of 7.5Ah, making it suitable for backup power, alarm panels, emergency lighting and small uninterruptible power supply (UPS) units. Its sealed construction reduces the need for maintenance and allows safe operation in upright or horizontal positions in enclosures for telecom, security and portable equipment.

Advantages

The sealed lead-acid chemistry provides predictable capacity, reliable voltage under load and long standby shelf life. The battery is maintenance-free, spill-proof and designed for consistent performance in sealed applications. Its compact dimensions and standard terminal layout enable easy replacement of similar 12V lead-acid modules and installation into tight spaces where reliable backup power is required.

Suitable for

• Backup power for alarm systems and security control panels
• Emergency lighting fixtures and exit signs
• Small UPS units for network equipment and consumer electronics
• Telecom standby power and low-power infrastructure devices
• Portable testers, measurement devices and short-run power tools

Key specifications

• Nominal voltage: 12 V
• Nominal capacity: 7.5 Ah (at specified discharge rate)
• Battery type: Sealed lead-acid, rechargeable
• Design: Maintenance-free, spill-proof construction
• Typical applications: Standby and cyclic use in backup and emergency systems

How to use

Install the battery in the appropriate holder or compartment following the equipment manufacturer’s instructions. Ensure correct polarity when connecting to charging or load circuits and use compatible charging profiles for sealed lead-acid batteries to avoid overcharging. For standby applications, connect the battery to the device’s recommended charging system and perform periodic visual inspections for secure terminals and correct mounting. For cyclic use, follow the charger manufacturer’s guidelines for charge/discharge rates and depth of discharge limits to maximise service life.

Usage recommendations

Store and operate the battery within the temperature range specified by your equipment to preserve capacity and service life. Avoid deep discharges where possible and charge the battery promptly after use. Replace batteries at the end of their service life or if they no longer hold sufficient charge for the intended application.