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I have a LI150 Series 2. I have upgraded to 12v and fitted a Casatronic Ducati Ignition System which works a treat.
I have connected the wiring as per their instructions and fitted a 12V Battery.
I have found that the Battery is always live and as such drains quickly and gets quite hot.

Any suggestions???

Put a kill switch on the battery feed

When you say the battery is live, I assume you mean it's drawing power all the time ?

Is going flat after you've driven it or when it's been stood ?

MickYork wrote:When you say the battery is live, I assume you mean it's drawing power all the time ?

Is going flat after you've driven it or when it's been stood ?

Yes it is drawing power all of the time.

When it is stood.

As ML suggests, fit an in-line switch.

You must have some sort of fault to be drawing current all the time and it's probably worth investigating. A good knowledge of electrics would be an advantage.

mine did this and it was the horn, and perished horn rubber grommets that caused a leak to earth

If you know that the electrical system is drawing constant current, you presumably have access to a meter of some type. In which case, you can disconnect individually each connection to the loom, starting with the headset, because the horn is most likely, as has been suggested. Set correctly, your meter should change values, hopefully to zero, with any bad component. So whilst in the headset, check them all if the horn is not @ fault.

Probably, the next likely culprit is the brake light circuit, especially the foot switch. The brake light circuit also has a permanent live supply as with the horn.

Warkton Tornado No.1 wrote:If you know that the electrical system is drawing constant current, you presumably have access to a meter of some type. In which case, you can disconnect individually each connection to the loom, starting with the headset, because the horn is most likely, as has been suggested. Set correctly, your meter should change values, hopefully to zero, with any bad component. So whilst in the headset, check them all if the horn is not @ fault.

Probably, the next likely culprit is the brake light circuit, especially the foot switch. The brake light circuit also has a permanent live supply as with the horn.

What WT said, something is leaking to earth and the horn and brake light switch are prime suspects, connect your meter and disconnect until the drain stops

If the rectifier/ regulator is duff, then the battery will drain back into the stator coils.
If this proves to be the case then it needs sorting before it burns the stator coils out.

Pop the live side of the battery off. Put your meter on ohms and connect 1 leg to a good earth and the other to the lead you took off the battery.
Should read infinity - no reading
Adjust the meter to read ohms x 100, ohms x 1000 and then to Megohms. Should read nothing.
Swap the leads over and retry in case there is a fault and it is a rectified fault.

If you have any reading on your meter that is your drain so start isolating to localise.

Any update?

All sorted, turned out that the connector block I was using was duff. Changed connections and all working as it should. Thank you all for you help.