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The SigmasTek SP12-3.5 is a sealed lead-acid (SLA) battery in the 12V, 3.5Ah class, the same format used in alarm panels, backup power supplies, UPS units, ride-on toys and small electric scooters. It is a standard-size replacement rather than a premium battery: it matches the common 12V 3.5Ah form factor, so it drops into devices built for that size. Buyers choose it to restore a device that has stopped holding charge, and it competes with other SLA replacements on capacity and fit rather than on features. Expect a few years of standby service in a well-ventilated, correctly charged device.
In stockReturn policy
This is a Pro-Series PSV1234, cross-referenced to the SigmasTek SP12-3.5. The battery you receive is a Pro-Series battery, not a SigmasTek-branded one. It is a 12V, 3.4 Ah sealed valve-regulated lead-acid (VRLA) battery for standby and cyclic power.
It uses AGM (absorbed glass mat) technology and needs no maintenance, watering or terminal service. The sealed ABS case resists vibration. The battery discharges in temperatures from −20°C to 60°C and self-discharges less than 3% per month at 25°C.
It suits emergency lighting, security systems, electric fences and gates, sump pumps, wild game feeders and decoys, medical devices, and portable equipment. It can be used in place of any other brand's 12V 3.4 Ah AGM battery.
