Power Sonic 12V 2.8Ah SLA Rechargeable Battery PS-1228 — AGM, Maintenance-Free Compact Pack

The Power Sonic PS-1228 is a compact, maintenance-free 12V 2.8Ah sealed lead-acid (SLA/AGM) rechargeable battery built for safe, upright or inverted mounting in backup power and portable equipment.

This sealed lead-acid battery from Power Sonic delivers a dependable, spill-proof power source in a small footprint. Designed to resist vibration and tolerate installation in any orientation, the PS-1228 suits a range of light-duty applications such as emergency lighting, alarm systems, small UPS units, and portable electronics. Its valve-regulated AGM construction eliminates regular maintenance while providing steady output and a one-year warranty for added assurance.

What physical size and weight can I expect from the PS-1228?

The PS-1228 is engineered for compact installations where space is limited. Its nominal dimensions and light weight make it easy to mount or swap out in confined enclosures.

• Dimensions: 5.20 in (L) × 1.30 in (W) × 3.82 in (H)
• Weight: approximately 2.45 lbs
• Form factor: slim rectangular case for tight battery compartments
• Connector type: standard SLA terminals suitable for fast replacement

How durable and maintenance-free is this battery?

The PS-1228 uses AGM (absorbed glass mat) technology to keep electrolyte immobilized inside the cell matrix, making it spill-proof and maintenance-free. It's designed to withstand shock and vibration, which is useful in mobile or industrial environments.

• SLA/AGM sealed construction — no topping up required
• Spill-proof design allows for safe indoor or portable use
• Vibration and shock resistance for long-term reliability
• Valve-regulated safety reduces gas release during charging

Where is this battery typically used and how does it perform?

With a 2.8Ah capacity at 12 volts, the PS-1228 provides reliable, short-to-medium duration power for many low-to-moderate draw devices. It performs well as a backup or portable power source where consistent voltage and sealed safety are needed.

• Common in emergency lighting, security alarms, and small UPS systems
• Suitable for portable power packs, test equipment, and handheld devices
• Rechargeable for repeated cycling when used with compatible chargers
• OEM and replacement battery for devices specifying 12V 2.8Ah SLA

What should I know about warranty and safe installation?

Power Sonic backs this model with a one-year warranty that covers manufacturing defects under normal use. Because it’s sealed and spill-proof, the PS-1228 can be mounted in any orientation, but correct charging and ventilation guidance should be followed to maximize life and safety.

• Full one-year limited warranty from Power Sonic
• Mountable in any position without leaking
• Use an appropriate SLA/AGM-compatible charger for best results
• Avoid extreme temperatures and follow manufacturer installation tips

Who is this for? The Power Sonic PS-1228 fits users needing a compact, dependable sealed battery for light-duty backup and portable devices—security installers, emergency lighting technicians, hobbyists, and equipment manufacturers who require a low-maintenance 12V 2.8Ah solution. If you want a small, spill-proof battery with vibration resistance and simple replacement sizing, the PS-1228 offers a practical balance of portability, durability, and value.