The Battery Tender Junior 12V 800 Selectable Charger is much more than a trickle charger. It has a brain. It's lightweight, compact, and very easy to use, especially in small spaces. With selectable battery type, it will keep your battery fully charged so that it is ready to go when you are! Stay Charged: 12V Battery Charger, 800mA Selectable Lead Acid/Lithium Battery Charger It will keep your battery fully charged so that it is ready to go when you are Lead Acid and Lithium: Power lead-acid (AGM, flooded, or gel) or lithium (LiFePO4) batteries with this smart charger and maintainer by switching to the desired battery type with the push of a button Smart Technology: An ISM microcontroller constantly updates charge sequence to ensure the proper level is sent to your motorcycle, ATV, UTV, personal watercraft, or scooter battery at all times. Smarter than a trickle charger Easy to Use: A low maintenance design that's quick and easy to use, our powersport 12v battery charger and maintainer is lightweight and compact allowing it to operate everywhere even in small spaces Safe and Secure: Our 12V battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power. It is ETL US/CSA, FCC, ICES, BC, certified including a 5 Year Industry Leading Warranty