This MillerTech, 4-bank, marine Lithium battery charger was specifically designed for the avid fisherman who only settles for the very best! Our goal, when designing and developing this charger was to create a high-quality, feature-rich, marine battery charger that is reliable and simple to use, making your experience seamless and enjoyable! Our charger produces 40A continuous, meaning 10A is going into each of your 4 batteries at all times, (from start to finish) unlike conventional chargers that taper off halfway through the charge and take a long time to actually complete the cycle. What this means for you, is less charging time and more fishing time, which is really all that matters, correct?