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.

100-240VAC Power for Worldwide Use    Charging Time: 2-6 hr    USB 2.0 Port for Charging Other Devices    Dedicated Plate Included for LI-50B    And LI-70B, VW-VBX070, VW-VBX090, D-Li88    Also D-Li92, DB-100, DB-L80, and NP-BK1    Accepts Various Other Battery Plates    Digital Read-Out of Charge Percentage    Includes Power Cord    Includes 12VDC Car Charger

• 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. Is this charger compatible with an Olympus LI-92B ?

A: Hi, this charger is not compatible with the LI-90B battery; this charger is compatible with the LI-90B: https://www.bhphotovideo.com/c/product/908182-REG/watson_c_3511_compact_ac_dc_charger_for.html

Q: 2. Is the Li50B battery interchangeable with the Li92B battery?Thank you.

A: The Watson LI-50B is interchangeable with the Olympus LI-50B, Panasonic VW-VBX090, Pentax D-Li92 and Ricoh DB-100 batteries.

Q: 3. Is it safe to leave the batteries charging overnight in this charger? Will it turn off once they've reached full capacity?

A: Yes the Duo Charger does turn off once charged. It is recommended you unplug it before handling the batteries.

Q: 4. will it charge myFuji XT-1 original batteries and will the 2 batteries you supply work on my XT-1?

A: Yes. NP-W126 battery plates will charge NP-W126 batteries. And Fuji original batteries for X-T1 have the name NP-W126. I dont know what batteries you have chosen from B&H.

Q: 5. Is it compatible with the Ricoh DB110?

A: Unfortunately no, the Watson Compact AC/DC Charger for LI-50B / VW-VBX090 / D-Li88 Battery is not compatible with the Ricoh DB110 battery. You would need this Ricoh charger instead: https://bhpho.to/2T62znU

Q: 6. Does this charger work with the Sony NP-F970 battery adapter?

A: The Watson Duo charger uses user-replaceable battery adapter plates from Watson. In order to charge Sony NP-F style batteries (NP-F550, 570, 750, 970, etc.), you'll need at least one of these: https://bhpho.to/3DOneR8

Q: 7. Hi. I need a battery for an Olympus TG-5. Will this work? Im not sure what battery it came with originally.

A: Here are two batteries that will work with the TG-5. Olympus LI-92B Rechargeable Lithium-Ion Battery (3.6V, 1350mAh) B&H # OLLI92B and the Watson LI-90B Lithium-Ion Battery Pack (3.6V, 1000mAh) B&H # WALI90B. Get the Watson if want affordability. Get the Olympus if you need performance and battery longevity.

Q: 8. 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: 9. Can this charger be used for the latest Fuji batteries (NP-W126S) used in the X-T2?

A: Thank You all for your prompt answers - very much appreciated

Q: 10. How do you change it so that they both charge on DC?

A: But as someone else said, this is only the charger and plates. The batteries are a separate purchase. Watson batteries are 7.4V, 1120mAh, 8.29Wh