The EV charging network builder has a lot to prove this year.ChargePoint (CHPT -1.70%) went public by merging with a special purpose acquisition company (SPAC) three years ago. At the time, the leading builder of electric vehicle (EV) charging stations impressed investors with its explosive growth rates.Yet ChargePoint's stock has lost more than 90% of its value since its public debut. It ran out of juice as its growth cooled off; it racked up steep losses; and rising rates compressed its valuations. The ab ...