In my opinion, you will not be riding today. Also, that battery tender is not designed for slow charging a flat dead battery. It is for maintaining a charged battery or charging a battery with 11.4volts or more. You are probably shortening the life of the charger.
I think you ought to decide if it is better to hook up to a proper motorcycle battery charger (off the bike) or just replace the battery. Don't charge the old battery at more than 2 amps. Certainly don't charge it in (hooked up to) the bike.
From the book: (my bold)
Therefore, a fully discharged 15 Amp-Hour battery will
take approximately 16 hours (to charge)
WORKING WITH A DEAD BATTERY OR A BATTERY WITH A VERY
If you try to charge a dead battery having a voltage below 3 Volts, the
BATTERY TENDER® CHARGERS will not start to charge because an internal
safety circuit prevents the battery chargers from generating any DC output
If a 12 Volt, Lead-Acid battery has an output voltage of less than 9 volts when
it is at rest, when it is neither being charged nor supplying electrical current to
an external load, there is a good chance that the battery is defective. As a
frame of reference, a fully charged 12-Volt, Lead-Acid battery will have a reststate,
no-load voltage of approximately 12.9 volts. A fully discharged 12-Volt,
Lead-Acid battery will have a rest-state, no-load voltage of approximately 11.4
volts. That means that a voltage change of only 1.5 volts represents the full
range of charge 0% to 100% on a 12-Volt, Lead-Acid battery. Depending on
the manufacturer, and the age of the battery, the specific voltages will vary by
a few tenths of a volt, but the 1.5-volt range will still be a good indicator of the
DL650K7, lightly farkled :mrgreen:
Last edited by 510ebl; 05-15-2010 at 02:52 PM.