That just tells us it's a Yuasa Y range battery, is there a stacker , label that starts with a letter followed by a number ?, eg F0.........?, dates the battery to June 2000,
Don't matter because the battery should be replaced after 5 years anyway,
Two choices here:
1 replace the battery and a possible nvm refresh,
2 upgrade if the panel is faulty,
Your choice.
e manno, August 2012