The Power Source Lightning Start WPX20L-NG Battery comes with the distinct advantage of coming with a Harley terminal hardware, which makes it arguably the best Harley battery if what you’re looking for is a battery that is as close to the OEM as possible. These features make it a great option for replacing a Harley battery. As the name implies, it also prides itself as being able to start at lightning speed and also comes with 500 CCA making it a pretty handy option for less than ideal weather.
It’s a factory-sealed AGM type battery, so it comes with the normal perks that come with those types of batteries, which is usually low maintenance and freedom from spillage. It isn’t the cheapest battery on the market, but seeing how closely it apes the OEM battery, it makes it immensely suitable for being a substitute for your Harley. A note of warning, however, it would be in your interest to check and make sure that the battery is a match for your bike as not doing so might mean that it would not work as well. It’s an ideal replacement battery for the Harley Davidson FXDC Dyna Super Glide Custom 1340, 1450, 1584, 1690.