My 09 Tenere is on its original battery, it measures 12.8 when I charge it, when installed on the bike after a few days it reads 12.4. With the ignition switched on but no engine running it goes down to 12.0. I have a couple of big trips planned this year and mindful of the fact that low voltage can do funny things to the system I decided to buy a new battery. It is a oem Yuasa and I have just added the acid and fitted the caps like the instructions said. It measures 12.8, the instructions don't say any more. Is it ready for fitting now or do I have to put it on the charger for a few hours as well ?