The BA9 Battery and System Tester features an operating range of 4.5-16V and is optimized to test six distinct battery types: Conventional Flooded Acid AGM Flat Plate AGM Spiral Wound Start-Stop AGM Start-Stop Enhanced Flooded and Gel Cell batteries. It also features the convenience of starting and charging system testing offering quick assessment and providing both a numerical result and a pass/fail result. The BA6 has a testing range of 40-1200 CCA covering everything from powersport to Group 31 batteries. It tests to multiple standards including CCA CA DIN and EN. It features an LCD display that offers a high level of detail throughout the testing process and improved viewing in bright sunlight. It also features reverse polarity protection to avoid damage from reverse hookups and over-voltage protection.