7.4 V Lithium Polymer Battery Charger

Jupio BP-828 Lithium-Ion Battery Pack (7.4V, 2670mAh). Very good batery and price...

With the current restrictions on shipping lithium polymer batteries, AC adapters are sorely needed for studio assignments that have larger numbers of photos that need to be people.

This lithium battery is very reliable.

The Watson NP-BX1 Lithium-Ion Battery Pack and Charger Kit is perfect as a second backup battery. The charger has an easy to see charge indicator light !

These new V.3 pouches are even better than the V.2. The rain covers are designed much better!

I had no complaints with v.1 but I can notice a (very small) improvement in the finish of v.2. It’s now less rugged which makes the image a little less “blurry”

The card fits perfectly in my wallet and is a tough polymer with some flex, not likely to crack. The battery feature on the key fob is an excellent upgrade also.

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 ( answers@bescor.com ) 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.

Battery i ordered fit perfectly and it works better when its 7.2v not 7.4 volts. Same as factory battery.

Sony NP-FW50 batteries are 7.4V, and this battery plate has a DC output for both 7.4V and 12V, meaning you can power Sony a-series cameras off an l-series battery. In other words, you're never going to run out of power again if you have a cage and a few spare l-series batteries, which are way cheaper than buying numerous NP-FWs. Super simple, super well made, and does what it needs to.