In the past few years, demand for greater implementation efficiency in UPS systems has minimized the vertical distance between UPS racks, which in turn limits the convenience of usage of the battery terminals when carrying out testing. Go for the best battery tester to get best output.
The BT3554 comes standard with a pin-type lead, but that design difficult to use in certain applications as it may not fit between equipment racks. This is why Hioki launched the Pin Type Lead L2020 as it has L-shaped tip alongside the BT3554. It is definitely one of the best brand that you get to find so check it out and make a decision.