FLKiaEV wrote:I do have a booster in the garage for those "just in case" moments (that I was hoping I would never need again! LOL).
Not too useful in the garage though when you're not there
What I was referring to is one of those small portable ones you charge up then throw in the glovebox or under the seat so it's there when you need it (or someone else). I'm not sure what this forum's policy is on outside links, but if you search on Amazon for NOCO Boost Sport you'll get an idea of what kind of device I'm talking about. Ironically it's lithium chemistry as well, but is rated for a higher amperage than the one you've linked to, and can be used as a USB powerbank - all for $67 USD.
I would say that when your 12V battery dies, then go ahead and pull the trigger on a lithium 12V battery replacement. However, if your 12V battery is still doing its job without issue - it seems like a waste to swap it out for no other reason than - this one is better. Plus you already have a garage charger, that should help keep your current one going longer, assuming it has some advanced features to help prolong the life of the battery like mine does.
In the end, it's your car, your money, and your time. I'm just saying the in the interest of the 3 R's (Reduce, Reuse, Recycle) that perhaps another path will prove to be more productive before going that route.