Battery Tender Junior 12V 800mA Battery Maintainer

The battery tender that extends AGM battery life through winter storage from 2–3 years to 5+. 800mA charge rate is enough to bring a depleted battery back from a low-voltage state, not enough to overcharge one even if you leave it plugged in for weeks. Spark-proof connectors, four-step charging (initialization, bulk, absorption, float), and reverse-polarity protection. Inline fuse, ring-terminal and alligator-clip adapters included. Pair with the CTEK tester and you know exactly when a battery needs to retire and when one just needs to be topped up.