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Complete Battery Coverage
Each bank independently runs the full 4-stage ISM algorithm:
The Battery Tender® 2000 Amp Lithium Jump Starter delivers 2000 peak Amps of cranking power for any 12V gas or diesel engine up to V8 — the highest-output standard portable jump starter in the Battery Tender® lineup
9 kW — practical for overnight PHEV charging or daily EV range top-ups for low-mileage drivers
large AGM automotive batteries
Battery Tender® 4-Bank 12V 1.25 Amp Battery Charger and Maintainer Marine Complete Battery CoverageFour vehicles. One charger. The Battery Tender 4 Bank 12V 1. 25 Amp is the standard for multi vehicle storage four completely independent ISM (Infinite Sequential Monitoring) charging circuits, each running at full 1. 25 Amp output, simultaneously maintaining up to four 12V batteries in any combination of charge state. For collectors, dealerships, rental operations, and households with multiple vehicles in seasonal storage, the 4 Bank is the single
