Bescor BLS50 Dummy Battery & AC Adapter Kit for Select Olympus Cameras

I needed a dummy battery to power my Olympus mirrorless camera while using it for streaming. This option from Bescor does the job and I have had zero issues with it thus far. I would recommend this product to anyone who is in need of powering their Olympus camera with an exterior power source.

I bought this to supply power to my Olympus om-d em 10 mark ii so it can be my main camera for zoom meetings . It works great as intended. The actual "battery" unit feels cheap and flimsy, but it works for my needs.

Easy to use. Does the job. The power supply cord also allowed me to use an external battery. I used a StarTech USB to 5.5mm Type-M Barrel Power Cable for 5 VDC to power the camera off the grid. Best of both worlds.

The power source works perfectly in our Olympus OM-D E-M10 II & III cameras. For the E-M10 II camera you have to leave the battery hatch open, to accommodate the cord, but it still works fine.

One of the Q&A's says the Bescor BLS50AC dummy battery adapter kit is not compatible with the Olympus E-PL9. I asked Bescor ( ) why the kit is compatible with the Olympus OM-D E-M5/M10, but not the Olympus Pen E PL9, since all three use the same Olympus BLS-50 battery. The response was: £It will work. Your camera just needs to be added to our list. The Bescor is 8V 3A. The Olympus battery is 7.2V 1175 mAh (1.175A). I did some online research to see if a device built for 7.2V could operate at 8V. One person describing himself as an engineer posted that 7.4V Lithium batteries actually span a 6V to 8.4v voltage range depending on state of charge of the battery. Another £senior electrical engineer said that because all devices are designed with some voltage tolerance value, a 7.4 volt device means 7.4 volt +/- 1 to 1.5 volts. Still other posts indicated that you can use a 3A power adapter on a 1.5A device. By logical extension, I figured (I don't actually know) that since the PL9 uses a 7.2 volt battery, it is probably designed to also work at 8 volts, and is also okay running at 3A. Based on the response from Bescor and the Internet voltage and amperage responses, I decided to purchase the Bescor and use it with my PL9. I haven't seen any sign of overheating or other problems with this setup so far, but will update this review if that changes. I did not deduct points for the need to leave the battery compartment open because I knew that would be the case when I bought it.