Redarc Dual Input 25A In-Vehicle DC-DC Battery Charger with MPPT Solar

The Redarc BCDC1225D Smart Start is a dual-input 25A DC-DC battery charger that keeps your secondary battery fully charged as you drive. Its two inputs pull from your vehicle alternator and solar panels at the same time, delivering dependable off-grid energy for overlanding, RVing, and remote camping.

Built-in MPPT tracking maximizes solar output, while Green Power Priority favors solar first to reduce alternator load. A multi-stage charge profile supports AGM, gel, standard lead acid, calcium, and LiFePO4 lithium batteries, and 12V/24V compatibility covers most rigs.

Fully sealed electronics stand up to deep water crossings, extreme heat, dust, and constant vibration, so it keeps working wherever your build takes you.