Hi Guys Hope this is the right place for this post and not a repeat... but I recently ordered a lithium lightweight battery from Moty. I emailed them not too sure re spec to go for and was advised the 4 cell will be fine for my 09 510SMR thumper. Duly paid a week ago and got home today and there she is. She's about a fifth of the weight of my OE item and half the size. And for not a huge amount more than an OE replacement here in the UK. I've not fitted it yet but re service, size, cost and communication I recommend www.motydesign.com bharris@motydesign.com
Be interesting to see how it holds up. That has been my main issues with the newer light weight batteries. Seen plenty fail.
Sure, time will tell. My OE item was also getting crushed under the seat and this seemed like a kill two birds solution. I'm only riding when I get the leisure time free and like the idea that you can leave it without hooking up the charger. Every year (due to my own laziness!) I end up buying a new batt. I can bring this indoors and forget it for 6 months methinks.