Quick view Bike Master Bike Master Li 2.0 Battery Bmp21L-Fp - 780858 Compare $295.95 $287.99 The most advanced high-power Lithium-Iron Phosphate battery technology available for your bike. BikeMaster® Lithium-Iron Phosphate batteries will provide you with ultra-high cranking amps and twice the service life of a conventional battery. At 1/3 the... Add to Cart Add to Cart