So had the 2015 390 duke out for the first time today got the bike on Wednesday night and could start it due to low battery level. So charged the battery and still not great at starting tbh takes a while and still showing low battery level
If you are in the UK l’ve got a brand new genuine Exide Duke 390 battery that you can have for £20.
I live near to Stockport, Cheshire if by some miracle you live near enough to collect it.
I imagine postage will make it too expensive but you are welcome to see what the cost would be, happy to pack it for collection by a courier.
Weight is 3.6KG
I have fitted a Li-Ion in both my Dukes.
An 11A/h Magneti Marelli in the 200 and a 12A/h W-standard in the 390
I live in the tropics so never any problems due to cold weather and as such no experience with this possible negative in the Li-Ions.
The Magneti Marelly is the same size as the OEM batt but much lighter.
The W-standard is a lot smaller (I needed space to put my PowerTRONIC unit) and of course also a fraction of the OEM weight.
Overall I am happy with both here in the tropocs.
Get your battery replaced. Before that, make sure your battery is being charged properly at the terminals. It can be a faulty magnet coil which would not provide the power necessary to charge the battery, and hence a low battery warning. But first, start off with a new battery.
Fool me once - Shame on you
Fool me twice - I'll kick your @rse