TECMATE Optimate™ DC-DUO 12 V To 12.8 V 2A Battery Charger

Features:

• Charge and maintain your battery without AC power
• Draws DC power from another 12 V battery to remotely save, recharge, and maintain your stored vehicle's 12 V lead-acid or 12.8 V- 13.2 V LiFePO4 / LFP battery
• Great option for emergency vehicle-to-vehicle and off-grid charging
• Built-in protection prevents deep discharge of the source battery
• IP54 weatherproof, rated for use down to -40° C / -40° F