Jaycar 12V 4.5Ah Sealed Lead Acid Battery – SLA for PA Systems, Toys & Torches (1.5kg)

You need a battery that actually lasts through the day — not one that's flat by lunch. Whether it's powering a portable PA for the school assembly, keeping an alarm panel honest overnight, or giving the kids' ride-on toy a full session of fun, you want a cell that holds its voltage.

This Jaycar 12V 4.5Ah SLA battery delivers a 20-hour rate of 225mA and can push up to 22.5A for five seconds when the device asks for a burst. At 1.5kg it's solid without being awkward, and the sealed design means no acid, no top-up, no mess.

Charge at under 1.35A between 14.4V and 15V (measured at 25°C) and it'll be ready when you are. No 'back in three weeks.' No 'we'll look into it.' Just a battery that does the job

• 12V, 4.5Ah capacity — 20-hour discharge rate of 225mA for steady all-day use
• Max discharge current: 22.5A (5 sec) for reliable power bursts
• Initial charge under 1.35A at 14.4–15V (25°C)
• Sealed lead acid design: no liquid handling, safe in any orientation
• 1.5kg — substantial enough for PA systems and alarms, light enough for portable use