Minn-Kota On-Board Precision Charger MK-550 PCL 5 Bank x 10 AMP LI Optimized Charger One Size. Plus they are optimized to deliver the exact charge you need creating longer run times and extending the overall life of your battery. . Specifications for Minn-Kota On-Board Precision Charger: Manufacturer: Minn-Kota Additional Features: No Condition: New Weight: 10.95 lb Quantity: 1 Age Group: Adults Gender: Unisex Package Contents: Minn-Kota Precision Chargers Minn-Kota 1835500: On-Board Precision Charger MK-550 PCL 5 Bank x 10 AMP LI Optimized Charger One Size