How To Know Bike Battery Is Dead. Remove the battery and put a voltmeter on it and post the voltage you get and then put battery inside. Telltale signs that the problem is the battery include weak or nonfunctioning lights and horn.

Remove the battery and put a voltmeter on it and post the voltage you get and then put battery inside. It will wake up if you plug it into the normal charger. Not by inclination just by 40 years.
Telltale signs that the problem is the battery include weak or nonfunctioning lights and horn.
That is when youd receive a prompt to recharge. Mixing differing types together could lead to over- or undercharging on the way to 7. If you leave the battery for several days or weeks whether plugged into the bike or not it will go dormant somewhat analogous to a computer sleep mode. The specific gravity is the ratio of water to the electrolyte fluid.

