I have a new battery and charger on the way, directly from Yuasa, as my old battery is toast.
I learnt a few things along the way and thought I would share.
1.) My bike was standing a lot for long periods, with a 3.8mA draw from an alarm, running down the battery over about 3 months. Having a battery sitting uncharged is not a good thing, as it reduces life substantially.
2.) Car or open cell batteries are different to sealed batteries, such as the OEM Busa battery. Open terminal voltage on a car battery, 2 hours after full charge gives 12.6V, for 100% charge. A sealed battery gives 12.9V for the same test. If you get a 12.6V reading on a sealed battery, it is less than 75% charged.
3.) Automatic battery charges which are not designed specifically for sealed batteries, have the microprocessor maintain at 12.6V after charge and will supplement when voltage drops below 12.5V. Not ideal for the Busa.
4.) If your voltage gets below 12.5V a few days after full charge, time for a new battery.
5.) For the Busa battery, charging much above 1.5 Amps is not a good thing.
5.) All those maintaining with a battery tender, that is a good thing.
Here is a cool linky from Yuasa, Page 31 will tell you everything you need to know about your bike's battery.
http://www.yuasabatteries.com/literature.php
I learnt a few things along the way and thought I would share.
1.) My bike was standing a lot for long periods, with a 3.8mA draw from an alarm, running down the battery over about 3 months. Having a battery sitting uncharged is not a good thing, as it reduces life substantially.
2.) Car or open cell batteries are different to sealed batteries, such as the OEM Busa battery. Open terminal voltage on a car battery, 2 hours after full charge gives 12.6V, for 100% charge. A sealed battery gives 12.9V for the same test. If you get a 12.6V reading on a sealed battery, it is less than 75% charged.
3.) Automatic battery charges which are not designed specifically for sealed batteries, have the microprocessor maintain at 12.6V after charge and will supplement when voltage drops below 12.5V. Not ideal for the Busa.
4.) If your voltage gets below 12.5V a few days after full charge, time for a new battery.
5.) For the Busa battery, charging much above 1.5 Amps is not a good thing.
5.) All those maintaining with a battery tender, that is a good thing.
Here is a cool linky from Yuasa, Page 31 will tell you everything you need to know about your bike's battery.
http://www.yuasabatteries.com/literature.php