Renogy 12V 30A DC On board Battery Charger with BT2 Bluetooth Module set, Smart MPPT suitable for Gel, AGM, and Lithium Batteries in RVs, Cars, Boats, Yachts

【Multi-input for Battery Charging】Renogy DC-DC On-Board Battery Charger is designed to charge service batteries from a starting battery linked to an alternator, or by utilizing solar panels connected directly to the unit, offering multiple charging options and ensuring your battery stays fully charged. Compatible with multiple deep cycle battery types: AGM, GEL, Flooded, and Lithium. 【3-Phase MPPT Charging Technology】 With Built-in Maximum Power Point Tracking (MPPT), Renogy DC-DC On-Board Battery Charger will charge your service batteries with maximized solar power, providing 3-phase charging (Bulk, Boost and Float) to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to 100%. 【Light & Small, Ready to be Set Up】With only 9.6In in length, 5.7In in height, and 3.13lbs in weight, Renogy DC-DC On-Board Battery Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from the limited room in your vehicle. 【Multiple Protections】 Renogy DC-DC On-Board Battery Charger has multiple intelligent protections includes battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection, guaranteeing charging safety and protecting your batteries. 【Bluetooth Monitoring Ready】This set include with a Renogy BT-2 Bluetooth Module accessory, which exclusively design to compact with Renogy DC Home App available on the IOS and Google Play Stores, you can monitor this device remotely and simply through your phone and stay constantly updated.