🔋 Smart 40 Amp DC-DC Battery Charger dash; New ✔ Charges the battery while driving via the car's alternator or solar panels. ✔ Built-in MPPT solar input for faster and more efficient charging from panels. ✔ Reverse charging feature: Charges the car's primary battery from the auxiliary battery to protect it from draining during camping. ✔ Supports LiFePO4, AGM, Gel, and Lead-acid batteries. ✔ Suitable for cars, RVs, trips, and camping. ✔ Smart and safe charging that preserves battery life and prevents overcharging. ✔ Easy to install and comes with the necessary cables and connectors. ✔ High quality and reliable performance for daily use and long trips. Condition: 📦: New 🚨Reverse charging feature: Allows charging the car's primary battery from the auxiliary battery when its voltage drops, to avoid starting failure during trips and camping Store Link: power-source.online