The only parts recommended by Ford Motor Company for Ford, Lincoln and Mercury vehicles. Inter-cell welds reduce resistance for improved cold crank performance. Optimized grid design maximizes current flow and cranking performance. Premium alloy grid helps maximize battery life in high heat environments. Envelope separators help protect plates from direct shorts, improving service life. BXT Series - Tested Tough MAX is the original equipment replacement battery for all Ford Motor Company vehicles.Impact-resistant polypropylene case and heat-sealed cover help prevent leaks. Special bonding paste helps minimize internal vibration, a leading cause of battery failure.