Lead Acid Battery Charger 1. Battery selected: Flooded Lead-Acid, Gel, AGM 2. 5a to 40amp charging current . 3. 12V/24V Lead Acid Battery Charger Three stages variable charging voltage algorithm by timing for maximizing the battery lifetimeLarge charging capacity design (40A for 12Vdc mode, 20A for 24Vdc mode) for shortening the charging timeSelectable charging currents based on connected battery ...