The all-new Shorai LFX19A4 lithium battery is designed to offer better cranking performance, longer life and more power under demanding applications. Compared to a similarly sized lead-acid battery, the LFX19A4 offers 50% more cranking power and saves 4.5 pounds. Suggested retail is $199.95, from dealers. For more information, contact Shorai, Inc., Dept. RW, 845 Stewart Drive Suite D, Sunnyvale, CA 94085, (888) 477-4848, www.shoraipower.com.