Marcus

Optimates are supposed to emulate charging /discharging cycle of a battery under normal use i.e. charge to full capacity, then put a slight drain on then recharge. My ex partner bought her new battery in April (yuasa) & it lasted a whole 4 weeks - she'd have been doing cartwheels to have got 23 months. Then again, I've had them last 5 years without an optimate - go figure.