“Wired the charger up a month after purchase when my fifo electrician son became available, and all works well. This small but vital unit sits beween my cranking battery and my ultra-slimline lithium battery, and accepts regulated charge from both the vehicle alternator when running, and solar blanket when deployed, to charge the lithium battery which feeds a 4WD fridge/freezer (also a Kickass, dual zone, and going very well), and other items such as camping lights. Very happy with the Kickass purchases.”