The BT520ANG is a Fluke 500 Series Battery Analyzer equipped with angled measurement probes and an integrated LCD display for comprehensive battery testing. It measures internal battery resistance, DC and AC voltage, DC and AC current, ripple voltage, frequency, and temperature with high precision across multiple ranges. The analyzer supports both automatic and manual sequence testing of battery strings with automatic measurement storage, threshold comparison for voltage and resistance with visual and audio feedback, and intercell strap resistance testing. It features a 7.4 V 3000 mAh lithium-ion battery providing over eight hours of continuous operation, USB connectivity for data download, and wireless communication capability for remote display and data management via the Fluke Battery Analyzer mobile app. The BT520ANG is ideal for maintenance, troubleshooting, and performance testing of individual stationary batteries, offering reduced testing complexity and an intuitive user interface for efficient field operations.