apc back-ups es350 12v 3.2ah ups battery - this is an ajc brand replacement ajc battery is compatible with these brands: apc. important: you must re-use: your existing cabling and hardware. these are replacement batteries only. note: it is your responsibility to verify the batteries being ordered match the batteries in your unit prior to placing your order. we are not responsible for incorrect orders. chemistry: sealed lead acid (agm). warranty: 1 year. disclaimer: our products are not affiliated with or authorized by apc.