Lithium house to windlass

[lateral]

Searched with no result.
I could wire to SLA start, but simpler to use LiFePO4 house.
4S2P CALB with 2x 200A JBD bms's. Argofet isolator.
Orion 20A isolated from Li to SLA.
800W windlass, allow 100A, 15m round trip.
115A bosch, with belt manager restricted to 80A, Run ~50°C continuous.

Anybody done this? Concerned on inductive pulse/back emf, from windlass field collapse frying bms.
Prelim install pic below.

[lateral]

Specifically, with JBD 200A bms's (approx half draw each bank)