COMBINATION----48V 3A Battery Charger & 12/24/36/48V 4A Battery Desulfator, maximize the battery life
ADVANTAGE OF THE COMBINATION----the battery charger can maintain the battery during the charging process, the battery desulfator can desulfate the battery in the rest of the time
DIGITAL DISPLAY----easy for you to monitor the whole process
Smart & Safe(Battery Charger)---overcharge protection, reverse connection protection, automatically adjust the current intensity
WIDE USE(Battery Desulfator)----can be used in 12v 24v 36v 48v 4A Lead Acid Battery