The Mighty Max 3 stage automatic smart battery charger comes with the round 3 pin XLR connector. The Mighty Max Charger provides an enhanced charging method that will not damage your batteries when left connected. Mighty Max 18-Volt 2 Amp charger also provides a short circuit protection, enabling the product to charge safely in most environments. Mighty maximum 18 Volt 2 Amp charger with 3 pin XLR connector. 3 stage charging method ensuring full charge, avoiding over-charging. Float charge to ensure the batteries life. Temperature/short circuit protection. Dual color LED – showing operation of charging progress.