I’ve read on here both that a lithium ion battery is totally fine even better than a “normal” battery And that you shouldn’t use one with a stock R/R that you Have to upgrade to a R/R made for a lithium ion battery. I’m hoping there’s a member on here who has a lithium battery with a stock R/R and can give me real world feedback if this worked well or not. My bike hasn’t had issues with the R/R that I’m aware of but here in the Northwest the winters just sap the battery. I don’t ride very often. Yes I use a tender in winter. This is the battery I’m thinking about getting: WPS Featherweight Lithium Battery HJTZ14S-FP-IL HJTZ14S-FP-IL. Other members have used it and it has great reviews. I’m just not clear on the OEM rectifier issue that our bikes are prone to burn through. Thanks guys and gals!