Charging LiFePO4 Batteries by Dedicated Engine Alternator

This is a video of the experiment conducted 2+ years ago showing the UHG (under-hood generator) charging performance of 400AH LiFePO4 batteries between engine speeds at 3000 RPM and Idle (~800 RPM). The right meter shows the UGH CHARGING VOLTAGE as measured at the 4/0 AWG cable junction near the driver side front end of a Hymer Aktiv camper van. The left meter shows the UGH CHARGING CURRENT as measured by a hall-effect sensor shifted by two decimal places due to the signal conditioning circuit implementation. That is: “ignore the decimal point in the current measurement reading”. The raw signal is used for me to ensure the signal conditional circuit is working properly. You can hear the engine noise in the background. Results: 14.2V & 127A at 3000 RPM 13.5V & 82A at 800 RPM