Ricoh PENTAX K-3 Mark III Faq page 42

◆Battery and power sources
Q: What type of batteries can be used with the K-3 Mark III?
A: Use the dedicated Rechargeable Lithium-ion Battery D-LI90(P) to power the camera.
In addition to the Rechargeable Lithium-ion Battery D-LI90(P) can be used with the
Battery Grip D-BG8 (optional).
Q: How do you charge the battery.
A: Follow the procedure below to charge the battery.
1. Insert the power plug to the USB power adapter until it clicks.
2. Connect the USB cable to the USB power adapter.
3. Plug the USB power adapter into the power outlet.
4. Make sure that the main switch of the camera is set to [OFF], and open the terminal
cover.
5. Connect the USB cable to the USB terminal.
The self-timer lamp on the back of the camera turns off when the battery is fully
charged.
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