I added this tender to my Xmas list. Wife is always looking for stuff like this to get me for Xmas. I figure with a brand new AGM battery, it will be fine until the end of the year without a charger.
You will be fine with that unit; has both a dedicated AGM profile and de-sulfation step in every charge profile. You may also ask Santa for the cigarette lighter adaptor for it; that way you can safely maintain the battery with the car locked and the alarm on.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein