Something I've been looking at since I undervoltaged one of my LiPo batteries is an auto cut off circuit when it get's below around 6.2v
I think this will do it but could do with some confirmation since this is not my area of expertise so am always concerned. Any comments and suggestions would be extremely appreciated.
If it is OK you can expect to see this replaced with a tutorial
Zener Diode is rated for 6.2V
Mosfet is rated at 85A
I realise a small load may pass through R1 when shut off but I assume it will be so small it will not matter (unless left for a very long period)