BS Battery 51913 SLA Max Factory-Activated AGM Battery Built for big-bore V-twins, heavy cruisers and touring bikes, the BS Battery SLA Max delivers up to 10 more cold cranking amps and higher capacity than standard SLA models. It handles high-compression starts and heavy accessory loads like heated gear, auxiliary lights and audio systems with ease. Factory-activated, charged and 100 maintenance-free, it uses a leakproof AGM design with a reinforced casing and heavy-duty grids to withstand severe engine vibration. Features: 10 more CCA and capacity than standard SLA Designed for big V-twins and heavy accessory draw Reinforced case and internal grids handle high engine shake Pre-filled, charged, and leakproof up to a 90 tilt angle Specs: Technology: SLA Max Voltage (V): 12 Capacity 10hr (Ah): 21 Capacity 20hr (Ah): 22 CCA (A): 275 Dimensions : 7.32 x 3.23 x 6.73 in. 186 x 82 x 171 mm