Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Yuasa or Motorbatt?

[rapidomoto]

Evening Guys,

Done a variety of searches on replacement batteries for a W-Reg 748s. Have been using Yuasa lead acid batteries for a while now but recent one has died. Tempted to go for the AGM Motorbatt but heard stories of them splitting. Has this problem been fixed or are they still likely to leave a mess over my engine?

Do Yuasa do a AGM battery that is a straight swap for their OEM lead-acid one?

I have ruled out Lithium as deemed these not suitable with the old charging nature on what are considered old bikes now. I've had the bike for 20 years now and still makes me smile!

[antonye]

I had a MotoBatt (the yellow ones) that lasted for 2 years before it died completely and couldn't be revived.
Fellow club member Andy had the same problem with TWO MotoBatt batteries in the same timeframe.
I've since fitted a Yuasa which was only a couple of quid more than the MotoBatt from ebay, and won't be buying another.

Edited to add: I've done the YT-12 conversion on my Yr 2000 748S rather than using the original massive YT-16 battery, and have never had any issues.

[rapidomoto]

Cheers Antonye,

I’m presuming the YT12 conversion would be smaller battery holder and cables? Is the YT-12 battery a AGM style battery? Keen to try and find a more modern battery design such as the Glass Fibre Mat over the old Lead -Acid style.

If the YT-12 and YT-16 are the same design I’d prob just stick with the 16 as weight isn’t too much of a concern for me. Battery longevity being the main aim for the AGM preference.

Regards.

[antonye]

You can simply fit the YT-12 (as used on the later 998 and 748 bikes) and move the cables around.
The relays will now fit inside the battery holder instead of outside!
Ducati added a battery tray spacer - I will find the part number - but these don't come up for sale very often. Until I found one I simply used cable ties and straps to keep the battery in place properly!
It's an easy job to do and saves a lot of weight over the YT-16.
TBH the weight you save going from YT-16 to YT12 is bigger than getting an AGM YT-16 battery, and it saves money too!

[antonye]

Here's a picture of the old MotoBatt fitted (before I removed it!) for reference.
You can see the YT-12 adapter is the black step under the battery.
It’s just a wedge that converts the YT-16 tray to YT-12 size.
Ducati used this for a while until they started making the battery tray for the YT-12 size battery, but as I said they’re very rare!

[antonye]

You’re in luck, there’s one on ebay right now!
https://www.ebay.co.uk/itm/254581215732