Kastar 2-Pack Battery and LTD2 USB Charger Compatible with Olympus OM System BLX-1 Lithium-Ion Battery, Olympus OM System BCX-1 Lithium-Ion Battery Charger, Olympus OM System OM-1 Mirrorless Camera

I am glad it works with my PD Battery packs. I’m glad the batteries seem identical in performance to the BLX-1 OEM units. I will order a second set as well. I can charge batteries from a port in my car while traveling, or from my PD and non-PD battery packs I use to charge phones and cameras directly, as well as from most standard USB ports supplying 10amps or less. The USB C ports used to charge and operate a camera or computer at the same time will not power this charger. It is designed to work off lower power supplies. Most PD Powerbanks have both high and low power supplies. It takes about 4 hours to recharge BLX-1 battery that has been drained. The Kastar batteries perform identically to the OEM batteries as far as I can tell. The OM-1 camera sees them the same way it sees OEM batteries and reports all the same details. It is as if the battery firmware was identical, but I cannot be certain. I get the same times and usage from either thus far. Time will tell if they are as durable.

It works, it is cheap. But the pins were bent on one module when I got it. The pin design is not very robust; basically exposed thin wires. The wires bend too easily.

I was very excited to see a 3rd party charger for the new OM System BLX-1 battery and ordered this right away. When I got it, I tested the USB-C and microUSB ports with a BLX-1 battery. The microUSB port worked fine, but the USB-C port didn't seem to work. I corresponded with the seller about this issue, and they tried to be helpful. They even sent a 2nd charger that they tested first. The light dawned when they told me that the USB-C port is not compatible with a USB-C AC adaptor that is 20W (5V 4A) or more. I was using a 20W adaptor for testing. They said it's compatible with a 10W USB-A AC adaptor or the USB-A ports on a laptop or computer. It is intended to be used with a USB-A to USB-C cable. And, so it is. That's the caveat. It will charge a BLX-1, but watch what you plug into the USB-C port. One clarification: when the battery is fully charged, all four green LEDs will be solidly lit. If the battery is 76% or more, the fourth green LED will be blinking.

And try buying one made for the Olympus camera cost $110 more I won’t do anything any different

An extreme disappointment. There is no reason for this to not work except that it’s complete junk.

This charger on paper looks good and is low cost. But after getting is i consider it rather cheap as low value. This unit comes with a Micro USB and a USB-C port. So i thought this is great, i can use the USB power delivery unit that is shipped with the OM-1 (or another USB-C PD unit). But what i found is that the unit does not work when using a USB C PD unit to power it up. I could only make it work using the Micro USB port. I still can charge batteries with it but now i have to carry a charge with USB-A port and a Micros USB cable. Exactly what i wanted to avoid. Of course i do not believe that the fact the original BCX-1 charger works with the UCB-C PD unit is really justifying a price point 10x that of the Kastar. But I am still disappointed since i have to believe that putting the USB-C port in it and NOT adding an explicit note that it will not work with the OM-1 USB-C power unit is unethical.

The Kastar Battery seems to be a solid replacement for the OEM BLX-1 battery. I'm personally using this battery for my new OM-1 camera. I haven't noticed any difference between this battery and OEM. When I first received the battery the look and feel was the same as OEM; I even weighed them. The Kastar battery was approximately 1-2 grams heavier than the OEM battery. I've used the Kastar battery charger, which also worked exactly as you would expect it to. The Kastar battery was able to charge in the OM-1 camera, and the battery levels within the camera display appropriately. In summary, this appears to be a 1:1 replacement for the OEM battery.

Works great with the Olympus original batteries. Way cheaper than the OM System unit.