Intellamatic 12 Volt AGM GEL Flooded Technology Charger Analyzer Power Supply is perfect when just a little more power will do! Connect the terminals to your small or large battery and let it do the work. This charging system can perform the function of a battery charger, trickle charger, and a battery tender (can be left connected to battery to maintain charge) as well as "DEEP DISCHARGE RECOVERY". Electrical Stability System (ESSTM) technology feature is a stable 25 Amp power supply for extended service procedures or re-flashes and best of all it's Made in America. Whether you are dealing with a motorcycle or a large truck battery, the 9425 won't overcharge, because of its automatic float system. Three LED lights on front panel will tell you the state of charge. This portable and versatile charger will charge all 12 volt batteries.