The intention to split markup from pure text is basically good (like "<b>%s:</b> %s\n", _("Charge time")), but it raises other problems: space between text and punctuation, different order for RTL languages, translation of units (Wh)...

A patch follows where strings are put again in their context. When markup is not simply enclosing the string (like "<b>text</b>"), it should be included in translation message, even if this is suboptimal because translators could potentially mix things up.