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Sphere 12V 100Ah Valve Regulated AGM Rechargeable Battery.
AGM (Absorbent Glass Mat) batteries suit caravans, motorhomes and boats. The electrolyte is held in glass-fibre mats rather than freely flowing liquid, providing a maintenance-free, spill-proof battery-not a completely dry or gas-free one.
Use an upright installation position in a ventilated compartment. Do not charge in a gas-tight enclosure: valve-regulated batteries can release gas, particularly if overcharged or a cell fails. An under-seat or cupboard installation therefore needs ventilation; the sealed construction alone does not make an enclosed space suitable.
Use an AGM-compatible charger or solar regulator matched to the charging limits below. The cycle and float voltage ranges are specified at 25 °C, with temperature-compensation values provided for operation at other temperatures.