First, you need to watch this
https://www.youtube.com/watch?v=ShtGB07fCSs
I don't think EarthX's batteries have a charge controller to limit the current.
So, I have BIG concerns about LiFePo4 batteries
1) Let's say you didn't start a plane for several months or you played with avionics too much after previous landing, and you drained a battery.... So your battery is 20% before you start the engine next time. After right after you start the engine, the alternator goes full amps trying to charge your battery. You may burn your alternator during preflight tests, especially on idle rpm.
2) YOU NEVER try to charge a LiFePo4 battery when ambient temperature is below 0 deg Celsius. It will damage the battery. ErathX says - no worries, first you will crank the engine!, and this will warm up a battery. But what if not? not enough. Regular LiFepo4 BMS controllers just disconnect the charger if the temperature is below 0C. But in the plane, we cannot do the same. Electric cars have a cells heater, and they don't have alternators.
It looks like I better build my own battery pack with LTO (lithium–titanate battery)
https://www.youtube.com/watch?v=ShtGB07fCSs
I don't think EarthX's batteries have a charge controller to limit the current.
So, I have BIG concerns about LiFePo4 batteries
1) Let's say you didn't start a plane for several months or you played with avionics too much after previous landing, and you drained a battery.... So your battery is 20% before you start the engine next time. After right after you start the engine, the alternator goes full amps trying to charge your battery. You may burn your alternator during preflight tests, especially on idle rpm.
2) YOU NEVER try to charge a LiFePo4 battery when ambient temperature is below 0 deg Celsius. It will damage the battery. ErathX says - no worries, first you will crank the engine!, and this will warm up a battery. But what if not? not enough. Regular LiFepo4 BMS controllers just disconnect the charger if the temperature is below 0C. But in the plane, we cannot do the same. Electric cars have a cells heater, and they don't have alternators.
It looks like I better build my own battery pack with LTO (lithium–titanate battery)