Professional mechanics trust Schumacher Electric's DSR ProSeries line of heavy-duty, professional-grade battery chargers. The Schumacher DSR ProSeries 5-Amp 24-Volt Industrial Battery Charger (DSR138) is ideal for industrial applications, such a charging motorized wheelchairs, electric scooters, hospital bed, and other 24-volt battery-powered devices. It is designed to quickly charge standard, AGM, and gel batteries. With a 5-amp charge/maintain rate, the DSR138 will quickly get a connected battery back to a full charge. Fully automatic and microprocessor controlled, the DSR118 employs multi-stage charging and reverse hook-up protection. Other built-in safety features include safe-start, non-sparking clamps, reverse polarity protection, short circuit protection, and patented thermal runaway protection.