Saft Nife Corp SMP 72/10 12/3 is a 24‑V DC battery charger module rated at 30 A output, designed for industrial deep‑cycle lead‑acid or NiMH packs. Common failure modes in this class include rectifier bridge degradation, capacitor electrolyte leakage, MOSFET gate drive loss, and overheating of the internal SMPS regulator due to poor ventilation or dust buildup. First‑check diagnostics: verify incoming 120 V AC supply voltage and current draw; inspect the output for correct DC voltage with a multimeter while monitoring temperature on the heat sink; visually examine the board for burnt components, cracked solder joints, or swollen electrolytic capacitors; review any diagnostic LEDs or error codes if present.[oss-gpt-20b]