Portable 12V Trickle Charger Battery Maintainer

I bought this as my backup battery for my new Pentax K3. It works fine. The Pentax charger is more of a trickle charger so it took a while to get fully charged but it seems to last as long as the factory battery.

The Watson charger works with any brand battery and the included 12v charger is a big plus. The ability to check on the condition of the battery, even without the charger being plugged in allows those with multiple batteries to avoid grabbing a dead (or near dead) battery into the camera. The quality and build of the charger is phonemail and the ability to charge cell phone or other device via USB is huge.

I tried charging my Olympus Battery using AC, and it was a snap. The Charger has a wall plug, an Auto 12V charger and a European Adapter Plug. It's a great product with a fair price.

I'm using this to power my Sony A7s with a USB charger battery that outputs 9V and 12V along with the regular 5V for USB plugs. It works great and allows me to run the camera for hours on a battery that costs as much as one camera battery.

easily portable battery charger

This is great for the B10x, but buying a second would be good to charge one battery while another may be trickle charging.

It's a batery charger and it seems to work as designed. Nice to get a 12v adaptor with it.

This battery is perfect for the Sony FX3. I use it to power my monitor with a dummy battery and the Sony FX3 itself with trickle charge through the USB port. But the best part is that it puts the weight where I want it- on the bottom of the camera instead of up on the monitor, making it easier to shoot a stable image while using a top handle. Plus, it gives me hours of worry-free recording time.

This is a great little portable battery charger. I carry it in my camera bag. It gets t he job done quickly.

Nice Charger for the price, I purchased mainly for the ability to charge from 12v DC. Works as advertised A+++.