Battery Tender 5-Bank Shop Charger: Multi-Stage 2A per bank Intelligent Battery Maintenance System

The Battery Tender 5-Bank Shop Charger utilizes a sophisticated 4-stage charging curve to maximize the service life of 12V batteries. The process begins with initialization, followed by a bulk charge where the 2A per bank current is applied until the battery reaches approximately 80% capacity. Transitioning into the absorption stage, the 120W power output is regulated to maintain a constant voltage while the current tapers, preventing overcharge in Lead Acid, AGM, and GEL variants. A critical feature of this professional system is its desulfation mode, which employs high-frequency pulses to break down lead sulfate crystals on the plates of 10-200Ah batteries. The final float stage maintains the battery at 100% charge without the risk of electrolyte boil-off, a necessity for seasonal storage or shop maintenance. Each of the five banks operates independently, allowing for mixed chemistry charging without cross-interference, all secured within a heavy-duty metal enclosure that exceeds standard thermal management requirements for 12V systems.