Features:Suitable for 1-1000AH 12V Lead-Acid Battery charger.The DD30CRTA is a PWM switch-mode battery charger controller for 12V lead-acid battery in a small package using few external components.The DD30CRTA is specially designed for charging 12V lead-acid battery with trickle charge, constant current charge, over-charge and float charge mode.The constant charge current is programmable with a single sense resistor.Specification:Material: PlasticWeight: Approx. 8g/0.3ozSize: 4.6*2*1.2cm/1.8*0.8*0.5inchMaximum charge current: 3AQuiescent current: Approx. 1.8mAHigh PWM Switching Frequency: 300KHzOperating Ambient Temperature: -40 to +85Application: Car battery charging, Solar battery charging, Mobile Loadspeaker, Lead-Acid Battery Charger, Electric Bicycle Charger, UPS, Portable Industrial and Medical Equipment, Standalone Battery ChargersPackage List:1 x 3A 12V 1-1000AH Lead-Acid Battery Charger