Having spare batteries to run Video or Dive Light has some major advantages. If you are planning to go on a live-aboard dive trip they are a must. Keep Diving with freshly charged spare batteries and experience no down time between Dives, because you have to wait for your battery to be quick charged. SEALIFE's Battery Charger for 18650 Size Lithium-Ion Batteries Recharges Up to 2-Batteries at a Time. The Charger has Two Independent Charging Channels for Individual Charging and Detection. The Charger has an LED Indicator that Glows Solid Red for Charging and Solid Green for Fully Charged. The LED will Flash-Red when Reverse Polarity is Detected, a Short Circuit or Non-Rechargeable.
The Charger has an Input Voltage of 100-240V A/C 12V to 24V DC with a Charging Voltage Range of 2.5V -4.25V and 500mAh Charging Current for Fast-Charging. The Charger Unit measures (L x W x H) 5.32" x 2.36" x 1.18" (135mm x 60mm x 30mm), weighs 3.8oz (108g), comes equipped with an Electrical Plug which may not fit all sockets Note: an additional Electrical Adaptor Might-be-Required in order to Connect-this-Charger to your Local Electric Socket.