This is a Dynamite EC5 Device Charge Lead. This charge lead features two 4mm banana style bullets fixed to 10awg wire.
This product is expected to become available for purchase on Thursday, September 2, 2021
Tuesday, Jul 21 2020 (about a year ago)
Dynamite EC5 Charge Cable
I'm not a fan of ec5 but when you need it you have to have one of these