I've completed Day 1 of the test, which was done with the battery still connected to the bike.
Charged the battery on Battery Tender Plus all day.
At 7:00 pm, measured voltage (still on tender): 13.20
Removed from the tender.
At 9:00 pm, measured voltage (still off tender): 12.71
Left off tender.
At 8:00 am, measured voltage (still off tender): 12.42
Turned on bike power and measured voltage: 11.79
Start bike and measured voltage: n/a (bike would not start)
I now have the battery disconnected from the bike and will repeat the steps and measurements described above.
11.8 volts is considered a dead battery.
To find out if the bike is drawing power from the battery with the bike key off.
Do you have a volt ohm meter...? If so it should have an " AMP - CURRENT " draw selection, you run the meter in series between the Positive battery post and positive battery cable, remove the pos cable from the battery and place it on a towel so it cant short to ground. place one meter lead probe on the positive battery post and the other meter lead probe on the positive cable. that way electricity has to flow through the meter and will register. That will tell you if the bike is drawing power from the battery or not.
leave your key in the off position, You will have to read the handout for your meter, make sure the meter has and is set to DC Current - a strait line with 3 dashes under it, the curved "sine wave" line is for AC. use a towel or card board to place the positive battery cable on so it cant touch ground and short out, only use the exposed meter probes and not your hands to touch the battery post and battery cable.
For comparison my 400 tested - Key off = 0 amps / Key on = 1.7 amps / Key on Bike running = not checked, starting the bike will exceed meters 10 amps max.
Testing your battery - removed from bike.
1. Charge at .75 to 1 amps for 10/12 hrs - or 2 amps for 4/5 hrs don't use a car charger that puts out more than 2 amp hrs, it will harm your battery & off gas ( rotten egg smell )
2. remove the charge leads from the battery and test the voltage... Should be 13+ volts.
3. 8 hrs later check the voltage again - should read in the 12.7v / 12.8v but not below 12.6v... below 12.6v after sitting for just 8 hrs means your battery is most likely toast, and
wont hold a charge, you can do the test twice if your not sure that the battery was fully charged the first time, its a small battery and should have fully charged the first time.
You'll need a meter to test if your chargers working properly, just like your battery it could be putting out proper Voltage but very little current ( Amps ). The test is more accurate slow charging the battery @ .75 to 1 amps over a longer period then fast charging at 2 amps.