Funny thing is I did the same thing as you, going up the numbers but I gave up after v.1.3.0. v.1.4.5 brings back the better looking battery gauge.
However it still doesn't have mouseover info, so I guess I'll be doing a bit more digging. After doing a bit more digging v.1.4.5 is the latest standalone Battery Gauge download module that can be found.
I believe this is because the Battery Gauge is now bundled together with the Settings modules. The new ones have mouseover info, which is nice, however they like to disappear so in regards to reliability the older ones are better? Without the mouseover info the Lenovo Battery Gauge is inferior to the Windows battery taskbar item.




