This 58.8V battery charger is configured to charge 14S lithium ion cells effectively and accurately at 2.2 amp current density. It provides reliable, and high accuracy constant current / constant voltage regulation solution with full protection and charge status indication for a wide variety of applications. The National Electrical Code(NEC) states that anything that connects to the AC mains must have approval by a Nationally Recognized Test Lab(NRTC). The 58.4V battery charger is certified to UL 1012 standard for Power Units other then Class 2(UL File #E491234, Model #IN5802200).