Charge dead truck battery (LA) from house battery (LiFePO4)

Boomerweps wrote:
You could use jumper cables to parallel your house battery with your vehicle battery and let it charge your vehicle battery BUT LiFePO4 batteries are not made for starting heavy motors, like an engine starting motor. The power surge could cause the BMS to shut down the house battery, then you’re really screwed.
Most auto parts stores will test your battery and alternator because they want to sell parts. Let them test it.