9 of 9 people found the following review helpful
better than the previous version SP3,
This review is from: OptiMate 4 Battery charger and conditioner (Misc.)
My original Optimate failed when the power chord's insulation went AWOL and started short circuiting, could have led to an explosion.
This version is more robust, but ensure that you do not put any of the cables under strain, and keep away from possible contaminents.