The Battery Tender 4 Amp Power Tender Selectable 12 or 6-volt options as well as battery type selection has you covered. It’s lightweight, compact, and fully automatic; very easy to use, especially in small spaces. It will keep your battery fully charged so that it is ready to go when you are!
Equipped with proper charge algorithm for charge and maintenance of 6V, 12V, AGM, lead acid or lithium batteries to ensure long-term battery health.
Selectable battery chemistry – has battery chemistry selection with proper charge algorithm for lead-acid, flooded or sealed maintenance free (AGM and gel cell) and lithium batteries.
ISM™ (Infinite Sequential Monitoring) of the fully automatic 4-step charge process (qualification, bulk charge, absorption, float).
Automatically switches to float/maintenance voltage after fully charging the battery.
If the battery voltage drops too far under load, full charger output power resumes.
12V @ 4A output and 120VAC @ 50/60Hz input.
Spark proof even when output leads touch.
Reverse Polarity Protection – no charge or battery damage.