The battery is made of AGM which ensures that it is maintenance-free and spill-proof. Mountfield Hayter Stiga Lawnmower mower 12v 4.5ah battery ULTRAMAX NP4.5-12, 12V 4.5AH. ULTRAMAX NP4.5-12, 12V 4.5Ah Sealed Lead Acid - AGM - VRLA Battery.
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