I'm getting pushback from bow thruster manufacturers when I suggest powering the thruster from the very large Victron house bank. It seems they have engineered the thruster motors to run at lower than specified system voltages, due to common voltage sag with lead acid batteries. The use of high quality LFP batteries keeps the voltage high and the thruster motors don't like it. Has anyone else come across this? Sleipner / Side Power (Norway) are one who advise against Lithium. Has anyone used Victron LFP successfully with Sleipner / Side Power thrusters?