Installation of car and bike battery is not tough. But if we don't have knowledge about terminals(+ve or -ve) and layouts that's harmful for vehicles. Now days many online portals sell car or bike batteries at cheapest prices with free delivery & installation. Recently i bought battery for my car online from BatteryBhai.com. They provides me free delivery as well as installation. Their technician installed new battery in my car and take out old battery, he has complete tools for battery installation. So why take risk, order online and enjoy hassle free service.