CTEK 12V Battery Tester (PRO 12V)

Tests 12V AGM, gel, and maintenance-free batteries under load without removing them from the bike. Plugs into the SAE accessory lead or connects directly to the terminals — runs a load test in 10 seconds and reports voltage, cold cranking amps remaining, and state-of-health. Catches a failing battery before it strands you. Compatible with lithium 12V batteries when used through the standard CTEK accessory port. This is the tester that lets you decide whether to replace a battery or try a tender first.