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Redarc BCDC1240D DC-DC Charger & Solar Controller | 12 Volt Planet
Renogy 12V 30A DC-DC On-board Battery Charger with MPPT for Gel, AGM, and Lithium Batteries Using Multi-Stage Charging, in RVs, Cars, Boats, Yachts, Recommended to Match with 40A ANL Fuse : Amazon.co.uk: