YOU MIGHT THINK that if you decrease the current limit setting on a charger, say to 80%, that the input current would be also reduced. You would be mostly right, but the output and input currents don’t correspond exactly. This is because the input current changes if the ac input voltage changes, and it also changes when you put the charger in the equalize mode. But the relationship is there, and it’s used in the UMC charger to allow you to use the charger on a branch circuit that has limited capacity. By reducing the output current limit, you can reduce the ac input current below the rating of the branch circuit breaker feeding the charger. Neat? Buy one today.