
The AutoMeter SB‑300 handheld battery tester is a portable diagnostic tool that performs fast, on‑vehicle battery tests and electrical system checks. Using patented Digital Pulse Load (DPL) technology it applies a true 40‑amp load to simulate real-world conditions and completes a full battery test in under 82 seconds. It tests flooded, deep-cycle, and AGM batteries across a 100–1600 CCA range, detects bad cells, and stores the last 100 tests.
Autometer Handheld Battery Tester