Been having a few prob, no power in garage and battery only holds charge for 3-4 weeks after a full top up charge... Take's a bit to turn these thousands over ehh...! If I was to replace oem with a better choice what should I go for ? Cheers
Mines just died a death to, looking through a few threads on here it seems yuasa and motobatt are the battery of choice, has to have around 130/150 cca though
The thing is, lead acid batteries have to have a charge in them or they die. If they drain flat during a storage period chances are that's all she wrote. There's a phenomenon called suphation that destroys their ability to hold a charge. Zapping them with power with a normal charger won't bring them back. The point of smart chargers like the Optimate 4 is that it cycles through different charging programmes to vary the input of juice to the battery. Massaging it, if you will, in a pattern not unlike that which it would get in normal, alternator derived road use. I did once bring a dead battery on my Ducati back from the dead with my Optimate 4. It was never quite the same afterwards and eventually I had to replace it but the charger did work. If you have a lead acid battery and you're laying up the bike make sure the battery is fully charged beforehand and beware of anything like alarms or active immobilisers that trickle the charge away. Or get a smart charger. There are loads of threads on here concerning which one'll best. I think, but I'm not sure, that lithium batteries prefer to be stored discharged but I'll bow to the knowledge of those who use them to confirm that.
