Hmm... tot that FOC battery is only within first year of warrenty period ? Second year will need to pay 50% ? If free within the 3 years warrenty, will change before it expires.
What I know is within 1st year Free, within 2nd year pay 50%, within 3rd year pay 75%. Beyond 3rd year, no discount. TCM not ******** also. They will check to ensure that battery dying then change. If they check that battery is fine and customers request change, pay full cost.