* Special design for lithium battery: power queen 14.6V 10A LiFePO4 battery charger has been specially developed for LiFePO4 battery 12V and implements the special 2-stage constant/constant voltage (CC/CV) charging algorithm with intelligent LED display. This charger has a special 0V charging function, so BMS can be activated * Highly efficient charging: with a constant current of 10A and a constant voltage around 14.6V, it is ideal for lithium ion battery with 20 amp hours and more. The fast charging time only takes 5 hours to fully charge a 50Ah lithium battery 12V, it is faster than a 3 amp multi-charger, it takes 17 hours to fully charge a 50Ah battery. * Versatile Protection power queen 14.6V 10A LiFePO4 lithium battery charger has multiple protection, such as over temperature protection, short circuit protection at the output, reverse polarity protection and over-voltage protection at the output to prevent damage caused by faulty operation. * Easy to use and visible display: connect crocodile clips of the charger (positive to positive, negative to negative) to the battery, connect the input cable to the charger and connect it to the power supply, then you can see the visual charge status in LED indicators.