Victron Blue Smart charger BPC121542022 features built in Bluetooth, allowing it to be monitored and controlled remotely from your smartphone, tablet or laptop. It is suitable for use in boats, cars, motorbikes, motorhomes and more. The Victron Blue Smart charger protects against overheating, reverse polarity, short circuits and is IP22 rated for water and particle ingress. If the charger gets hot, the output current will adjust accordingly to prevent damage or failure. It also offers "Night" and "Low" modes to reduce output current and make the charger totally silent. Low mode can be ended manually whereas Night mode automatically ends after 8 hours. This battery charger features a six-step adaptive charging algorithm to maintain health, life and performance of batteries. The charger will also charge Li-ion batteries using a different setting. It will also attempt to recharge a 'dead' battery by feeding it a low current, before raising the current when there is sufficient voltage across the battery terminals.