I was needing some input on what I think is a problem w/ my battery voltage. We ride a 1990 Venture Royale w/ a Motortrike conversion & it seems that the longer we ride, the less my voltage meter registers above 12 volts. Plus ANYTIME I use the brakes, the voltage drops down to or under 12 volts on the meter. If we ride say, 100 or more miles & shut off the engine, the starter labors to crank it & may even click like the battery is too low to start it. I can wait about 10 minutes & the starter then cranks the engine fine. When I put my battery tender on it overnight, the voltage is perfect the next day until we go about 100 miles or more. I've tested my stator output & the voltage difference @ the battery before & after starting but everything in the charging system is as should be. WONDER IF I HAVE A FAULTY BATTERY AS I HAVE NO WAY OF PUTTING A LOAD TEST ON IT but my brake lights sure do pull the voltage down. Thanks for any replies.