Keep your important ice fishing electronics charged up and ready to go with the Norsk 15Ah Lithium Ion Battery with Charger Kit. Lightweight yet incredibly powerful, this 15Ah Battery has enough juice to power most common sonar units with up to a 7 inch screen for 15 hours. Weighing in at just 2.6 lbs., it delivers all the power at three times lighter weight than a typical lead acid battery...and never any concerns about hauling acid around. Plus, the Battery Monitoring System will protect your battery for all of its 1,000+ charge cycles, ensuring it's always at the right temp for charging, and protecting it against overcharging and short circuits. Offers up to 15+ hours of runtime for common sonar units with screens up to 7 inch Lightweight at just 2.6 lbs. Battery Monitoring System protects battery against cold charging, overcharging, low and high-voltage cutoff and short circuit protection Over 1,000 charge cycles Dual USB ports Battery-power indicator 15Ah Includes 2Ah 12.6V battery charger 2-year limited warranty Order today!