The Duo LCD Battery Charger II from Watson charges 1 or 2 batteries of various types via dedicated interchangeable plates, which are required and available separately. The Duo Charger can simultaneously charge 2 different battery types with different voltages. It runs on 100-240 VAC power, allowing for use all over the world. The charger also features a USB 2.0 port for charging another device simultaneously. The LCD screen provides a digital read-out of each battery's charge percentage while charging and can also show a battery's charge status via the battery test button, even when the charger is unplugged. Integrated detection circuits protect batteries from overheating while charging by automatically stopping the charging process, and also guard against dangers such as defective batteries or short circuits. The Duo includes a power cord with a 2-prong US plug, as well as a 12 VDC car charger that plugs into a cigarette lighter.

Requires Interchangeable Battery Plates    100-240 VAC Power for Worldwide Use    USB 2.0 Port for Charging Other Devices    Digital Read-Out of Charge Percentage    Overcharge and Overheat Protection    Includes US Power Cord    Includes 12 VDC Car Charger    Certifications: FCC, CE, WEEE

• Accepts up to two Watson interchangeable battery plates, available separately

• Simultaneously charges two batteries independently

• Overcharge and overheat Protection

• LCD screen displays charging status

• USB output charges mobile devices

• 12 VDC car adapter allows mobile charging

Related Questions and Answers

Q: 1. if I am in a remote location with an external power source, can the usb be used to connect to the power source to charge the battery?

A: No - the available power sources to charge batteries on the Watson charger are mains power or cigarette lighter - the USB on the device is for output only to change tablet/mobile phone.

Q: 2. Is there a plate available to charge AA Ni-MH batteries?

A: No. There is no adapter plate for the Watson Duo LCD Charger that supports AA batteries.

Q: 3. How much time does it take to charge a fully depleted Nikon EN-EL15 battery? Does it take longer if I charge two bateries simultaneously?

A: It takes about 45 min. No difference if one or two batteries. Also nice to see the meter % charge.

Q: 4. Will this charger work for the EN-EL15b battery?

A: Yes it will

Q: 5. Can this be used with en-el15a batteries?

A: Can be used with any port plate call b.h see if they have the shoe for el15a batteriesCharger works wonderful

Q: 6. Can the USB port on the charger be used to charge the LP-E6N batteries, using large capacity USB power banks, when in remote areas with no power or automotive access?

A: The USB port is Output Only . You cannot use it to power the topside battery docks. On the positive side, the USB port puts out 5.2 volts, higher than most USB chargers. It's great for iPads and iPhones and other high-capacity power banks.

Q: 7. Does this include two adapter plates for Sony NP-FW50 batteries?

A: Yes, two Watson battery plates for the NP-FW50 battery would be included.

Q: 8. is there a plate for charging BP-A batteries (Canon C200)?

A: We're afraid not. At this time we do not offer a BP-A style battery plate for this system.

Q: 9. I currently own this charger. Is it safe to use with Sony-style L-Series batteries (with the correct battery plates of course)?

A: Yes its safe. The Sony L plate is at this link https://bhpho.to/37ZXAJu.

Q: 10. where can i buy an optional plate for this charger that will charge an olympus BLN-1 battery? THANKS

A: The Watson Battery Adapter Plate for BLN-1 enables you to charge any Olympus BLN-1 type battery using your Watson Compact AC/DC or Duo LCD Charger. This product can be found here:http://www.bhphotovideo.com/c/product/888218-REG/watson_p_3512_battery_adapter_plate_for.html