The Viking 4 AMP car battery charger is fully automatic for trouble-free charging and features microprocessor technology which gives this charger the power to charge most 12v batteries including deep-cycle, gel, and AGM batteries. Fully automatic microprocessor control feature adjusts the amperage rate to charge and maintain batteries quickly and safely with one press of a button. Learn more here: https://hf.tools/www63350 | Harbor Freight

53K views · 268 reactions | The VIKING 1.5 Amp, 6/12V On-Board Battery Maintainer keeps batteries topped off during cold weather or when vehicles are in storage. It’s designed for safe mounting inside engine bays or on walls. Only $19.99! #HarborFreight #VehicleStorage #TrickleCharger #BatteryMaintainer | Harbor Freight | Facebook