my Z is on battery manager (tender) during the weekdays since she is my weekend hobby car. that said, the battery is in very healthy condition.
my G who has been with me since day one in 2004 is still on original battery and cranking hard. i think most battery fatigue happen from short-distance driving or excessive heat. i put her on battery tender on the weekends since i dont use the car and use my Fit to go to the stores.
my commute is about a 22-23mile round trip. not enough to have a full charge as the battery manager takes about 2hrs to get to float. if i hook up my Z to the battery manager immediately after driving for 50 miles or so on my weekend drive, the battery floats within 5-10min. big difference.
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