The Mighty Max 3 stage automatic smart wheelchair 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 24V 2A charger also provides a short circuit protection, enabling the product to charge safely in most environments. Most common use with the following wheelchairs: Invacare, Pride Mobility, Hoveround, Freedom, DDC, Shoprider, E-Scooter Electra, Frank Mobility, Merits Health Products, Theradyne and many more. Mighty Max 24 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.