The Vevor DC to DC Charger with MPPT delivers up to 350W and 30A of multi-stage charging for RV, camper, trailer, off-grid, and home backup applications. It supports solar panel and alternator dual input, helping optimize charging efficiency while reducing alternator load. The charger is compatible with LiFePO4, lead-acid, GEL, AGM, and calcium batteries, and it also works with most portable power stations. Four charging modes support 12V to 12V, 12V to 24V, 24V to 12V, and 24V to 24V operation. Built-in protection features and active cooling help ensure reliable, secure charging.