Hi :-)
Question number 1 :
Is it right that DJI will replace a drone not under guaranty if the crash Come with a New dji Battery problem ?

Question number 2 :
What do you think about Enegon Battery for dji Phantom serial around less than -50% cheaper ?
Enegon us a Battery spécialiste factury...

It make tour custumer in doubt !!!!

I'd avoid 3rd party batteries, not worth the risk.

Hello and good day. Thank you for reaching out and for these inquiries.  Just a reminder that DJI do not recommend you to use a 3rd party batteries on your DJI drones. There is a possibility that these batteries will be able to work. However, since it's not yet tested by DJI we cannot guaranteed the reliability of the said charger when in use. In addition using 3rd party chargers might cause damage or harm on the DJI Drones and may void the warranty of the unit as well. Thank you for your understanding and fly safe always.