OK......here goes guys. Went on a 12 hour ride this past weekend. 11 am - 11 pm. Battery was fully charged when I left the house. Rode the day with bumper lights on and no problems. When it got dark I turned on Brights (I have 3 light mod and HID Kit on ATV) After a few hours noticed hid's were alternating one or the other off. Shortly after.....Batt Light came on and Speedo started to blink. Battery ended up COMPLETELY draining and had to b towed out of woods Yesterday I charged battery and put meter on it. With battery about 1/2 charged when just bumper light are on voltage is climbing.....When 3rd light is turned on then voltage starts dropping. So.......charging system not able to charge quicker than lights discharge?? Need more powerful battery? Need to do away with 3 light mod? On a separate note........Had my battery checked and tested good. Will drain while setting in basement to about 50% in a few hours. Are those Battery Tests at Auto Zone consistant/accurate?? Thanks for help/answers......Have a Great Day and God Bless!!!!