Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here.
After getting the grip for my KP, I got a bigger D-LI90 battery to solve any extra energy needs.
I also needed a new charger, preferably a USB one.
I ended up finding this one, a bit of a coulomb egg idea, with movable connector pins, it works with the D-LI90 and D-LI109 pentax batteries and many more, tested Canon Olympus and Samsung. It uses 12v or 5v USB power, witch makes it very versatile, I use it with a solar panel a 12v battery.
It has the quality stamp of "works for me"
, available on your normal Chinese stores, I got it on aliexpress.
LCD Universal Battery Charger For Digital Cameras and Camcorders| M20 - Soshine