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The SigmasTek SP6-8.5 is a sealed lead-acid replacement battery rated at 6 volts and 8.5 amp-hours, built to swap into the same slot as the original battery in small devices. It is a maintenance-free AGM design, so it needs no water top-ups and can be mounted in any position. It suits owners of ride-on toys, small UPS units, emergency lights, scooters and similar gear whose original battery has aged out. Against brand-name OEM batteries it is a generic alternative: the same chemistry and terminal layout at a lower outlay, but with less of a track record on cycle life.
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This is a 6V, 8.5Ah sealed valve-regulated lead-acid (VRLA) replacement battery cross-referenced to the SigmasTek SP6-8.5. The battery you receive is a Pro-Series PSV685, not a SigmasTek-branded battery. It uses AGM (absorbed glass mat) technology and is brand new.
The durable sealed ABS case resists vibration. The battery discharges from −20°C to 60°C and needs no watering or terminal service. Self-discharge is under 3% per month at 25°C.
It suits standby and cyclic power in emergency lighting, security systems, electric fences and gates, sump pumps, wild game feeders or decoys, medical devices and portable equipment. It can replace any other brand's 6V 8.5Ah AGM battery.
