My DCDC charger is lighting up but not outputting power from the alternatorUpdated 3 months ago
The DCDC charger will not start if your battery is full or very close to full. To get it to start outputting power, please ensure your auxiliary battery is drained to at least 85% (13.1V for lithium batteries).
The charger will not kick in if no power comes from the cranking battery. Check the incoming amps from the cranking battery using a clamp meter or an in-line wattmeter. If you have any relays, circuit breakers or fuses between the battery and charger, ensure that you measure the incoming amps from either side, as these have been known to limit output.
When this unit is outputting power from an alternator, you should see a solid profile LED and flashing alternator LED.