The EcoFlow 500W Alternator Charger delivers up to 5× faster charging in-vehicle outlets, topping up 1kWh in just 2.1 hours. This 3-in-1 device works as a fast charger, battery maintainer, and jump starter for EcoFlow portable power stations. Designed for SUVs, pickups, and RVs, it features easy 3-step installation, robust safety protections, and expands your RV house battery capacity keeping you powered and ready wherever the road takes you.