• EnerSys (NYSE:ENS) has seen a sharp rise in its share price over the past six months.
• The stock move comes alongside reports of declining unit sales over the last two years.
• Revenue growth forecasts are described as modest, with gross margins remaining low.
• Investors are weighing strong quarterly results against these underlying business challenges.

EnerSys, a supplier of energy storage and related solutions, now sits in a spotlight that is as much about its operations as its stock chart. While recent quarterly numbers have been well received, the backdrop includes falling unit volumes over a two year period and only modest expectations for revenue growth. Low gross margins add another piece to the puzzle for anyone trying to assess…