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★ Top Pick
Pirate Battery YTX20HL-BS 310 CCA Maintenance-Free 12V 19Ah Battery Replacement for ATV, Harley Davidson Motorcycle, Jet Skis, Scooter, UTV, and More - Nut and Bolt (T3) Terminal
The Pirate Battery YTX20HL-BS is a direct-fit replacement for the Street Bob, matching the OEM group size and meeting the 310 CCA cold cranking requirement that Harley's Twin Cam and Milwaukee-Eight engines need for reliable starts. The 12V 19Ah capacity keeps up with the Bob's electrical load, and the maintenance-free sealed design suits riders who don't want to babysit fluid levels. Caveat: longevity reports are mixed, so keep a trickle charger handy if the bike sits regularly.
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