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SV650rules · 05-04-21, 03:17 PM

Fitted a new Yuasa YT12A-BS battery to my 2016 AL7 to replace the OEM FB ( Furukawa Battery ) super MF FT12A-BS. I have a voltmeter fitted to bike and noticed that ( despite being charged regularly even when not being used ) voltage was sitting at around 12.4 and dropping to below 12 when the ignition was turned on just due to load of LED headlight and fuel pump - voltage recovered slowly to about 12.3 when ignition turned off again. Even 24 hours after a full charge the battery was back to 12.4... Now the battery sits at about 12.8 to 13.1 volts, drops to about 12.6 when I turn ignition on and - the bike positively leaps into life whern I thumb the starter..... Beware, batteries fail so slowly that it goes unnoticed, it was only the voltmeter that caused me to notice what the voltage was doing, the bike still started with the old battery on, but it is only now the new one is fitted I realise how much slower it was turning the engine over.

05-04-21, 03:17 PM	#2180
SV650rules Member Mega Poster Join Date: Nov 2016 Location: Shropshire UK Posts: 1,364	Re: What have you tinkered with today? Fitted a new Yuasa YT12A-BS battery to my 2016 AL7 to replace the OEM FB ( Furukawa Battery ) super MF FT12A-BS. I have a voltmeter fitted to bike and noticed that ( despite being charged regularly even when not being used ) voltage was sitting at around 12.4 and dropping to below 12 when the ignition was turned on just due to load of LED headlight and fuel pump - voltage recovered slowly to about 12.3 when ignition turned off again. Even 24 hours after a full charge the battery was back to 12.4... Now the battery sits at about 12.8 to 13.1 volts, drops to about 12.6 when I turn ignition on and - the bike positively leaps into life whern I thumb the starter..... Beware, batteries fail so slowly that it goes unnoticed, it was only the voltmeter that caused me to notice what the voltage was doing, the bike still started with the old battery on, but it is only now the new one is fitted I realise how much slower it was turning the engine over. __________________ 2016 SV650 AL7 Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain Last edited by SV650rules; 05-04-21 at 03:22 PM.