Chris K
8/3/2023
3 of 5 people found the following review helpful.
Not Sure If This Works
I'm not too sure if this charger work. I charged my Optima Yellow top twice. Both times the Genius10 charged to full and enter maintenance mode. Install the battery in the vehicle and never started. Took my voltmeter out and shows 11.7V. Took my yellow top to a parts store and they tested the battery dead under load.
I want to test this with a different battery but I don't have another dead battery laying around.