The 3000 QuickCable 12 Volt Commercial Rescue Booster Pack (Less Battery) provides the same features as our popular Model 1800 but now you can choose to add your own battery. If you already have your own battery supply and wish to build your own custom pack, simply install and go. This feature gives you the benifit of long lasting performance and power versitility. Depending on the battery, you can have up to 1500 Peak Amps of power Providing enough power for the most demanding 12 volt jump starting needs. The 3000 provides room for most "U1" Sealed Batteries measuring no more than 7.56" wide x 6.42" High x 5" Deep. 55" long 4 ga. cables provide plenty of reach for over the fender or through the grill access. One of the most important features is the reverse polarity connection circuit which eliminates shorting out a vehicles system due to accidental reverse hook-up. Illuminated clamps light the battery terminals in dark enviroments ensuring perfect connections and an area light for under the hood that also acts as an emergency flasher for road side safety.