Review on Battery Keenstone Universal Rechargeable Batteries by Joshua Reese

Has independent easy to read displays for each battery. Charges each battery separately. Charges lithium batteries and stops charging when charging is complete. Charging defaults to 500mA, but individual bays can be changed to 1000mA by pressing the button above the individual bay. Automatically detects the battery type when the battery is inserted into the charging bay. Some settings are available for individual trays, but I don't use them. Grips up to size 21700 but very tight. This model appears to replace the ThruNite MCC-4S which is currently no longer available from Revain and appears to be identical in construction and appearance except that the Keenstone has blue trim instead of red. In my case, three chargers are mounted together, which allows you to charge 12 batteries at the same time. I have tried many chargers and this model is by far my favourite. Another nice feature is that it plugs directly into your car's cigarette lighter socket. A NOTICE. I've heard it's important to connect the charger first and then add the batteries to charge.