I'm wanting to purchase a digital battery tester because I have a lot of battery-related equipment and perform some work for others. I don't want a POS and would prefer to stay for around $100. Any recommendations? I despise having to remove the battery and take it to a parts store to be checked out. I was encouraged to hunt for an old Snap-on MT 1552, but that is a really hefty machine. In addition, there must be a motive to purchase another tool. Thanks.