The Tornado120000 from TOPDON is a power supply and battery charger that features intelligent current (5-120A) and voltage (11-16.8V) output adjustment with a maximum power of 1700W. It's compatible with 12V lead-acid batteries and lithium batteries. It comes with three major charging modes, nine-step smart charging, and eight built-in safety protection modes, including short circuit protection, spark protection, and reverse connection protection. The Tornado120000 also uses a dot matrix LCD screen for easy reading and operation.