Battery Charger BJ-12

Ricoh BJ-12 Battery Charger — Professional Dual-Battery Charging for the GR IV Workflow

The gist: A dual-slot dedicated charger for the Ricoh DB-120 battery that lets professional GR IV photographers fully charge two batteries simultaneously — so both are ready before an assignment and battery management doesn’t interrupt the shooting workflow.

• Two batteries charged in parallel: Load both DB-120 cells at once; neither waits for the other — both reach full charge in approximately two hours, eliminating the queue management of single-slot chargers.
• ~2 hour charge cycle: Fast enough to recharge one battery during an assignment break and the second overnight — practical scheduling for a full-day documentary or street photography project.
• Dedicated fit, safe charging: The BJ-12 is Ricoh-engineered for the DB-120 battery’s exact dimensions and chemistry — eliminating the fit and voltage regulation compromises that come with third-party universal chargers.
• USB connection with camera’s cable: No proprietary charger cable required — uses the USB cable included with the GR IV, reducing the accessory footprint in a professional camera bag.

Ricoh’s official product documentation confirms the BJ-12 as the exclusive dual-slot charger for the DB-120, designed to charge both batteries simultaneously via USB for a complete GR IV battery management solution.

Best for: Professional and serious GR IV photographers who carry two batteries and need both fully charged before an assignment or a full shooting day. Skip it if: You only own one DB-120 — the single-battery BJ-12 capability offers no advantage over in-camera USB-C charging. Runs ~$60 — check the current price before buying.