The Jackery DC-DC Alternator Charger is a 600W hardwired charger that refills a Jackery power station off your vehicle's alternator while you drive. It pulls 11.8–32V DC at up to 60A from the starter battery and outputs a regulated 50V DC at up to 12A into the station's DC8020 input. That's about 1 kWh of stored energy for every 2 hours of driving — roughly 6× what a 12V cigarette-lighter socket can move.
Smart auto start/stop watches the ACC signal and battery voltage, so charging only runs while the engine is running and stops the instant you shut off. Your starter battery doesn't get drained at camp. It works on both 12V and 24V systems, so the same unit fits a truck, van, or 24V rig.
The charger measures 10.2 × 6.1 × 1.5 in and weighs 3.5 lbs. IP40 construction handles dust and a -4 to 140°F operating range, but it's a cab/enclosure mount, not an exposed underbody part. This is a hardwired install (fuse at the battery, heavy-gauge run, ACC tap) — capable DIYers manage it, and Jackery recommends a pro shop for clean, safe wiring. Compatible with Jackery stations that have a DC8020 input port.
