It would sound even weirder, if I tried to write an ad in chinese. That's pretty standard for these ebay ads too.
Nothing inherently wrong with the merchandise, but when you need customer service, good english from the vendor is a big plus. Located on your continent even better. Mods ought to move this to new sale, and likely will.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.