Battery Charger BJ-12

Ricoh BJ-12 Battery Charger — Charge Two GR IV Batteries at Once, Overnight

The gist: A dual-slot charger that recharges two Ricoh DB-120 batteries simultaneously — essential for travel photographers who carry a backup battery and want both ready by morning without juggling charge cables all night.

• Dual slot, both batteries charge at once: Load both your DB-120 batteries into the BJ-12 simultaneously — a single overnight session leaves you with full power in both batteries, no rotation required.
• ~2 hour full charge per battery: Each slot charges a DB-120 from empty in approximately two hours — fast enough for a midday top-up during a hotel lunch break on a full shooting day.
• Uses the camera’s USB cable: The BJ-12 charges via the same USB cable supplied with the GR IV — one less dedicated cable to carry in an already full travel bag.
• Dedicated to DB-120 only: Designed exclusively for the Ricoh DB-120 — the battery dimensions and voltage profile of the GR IV ensure precise, safe charging without the risks of a universal charger’s loose fit.

Ricoh’s official product page confirms the BJ-12 charges up to two DB-120 batteries simultaneously via USB, making it the recommended dedicated charging solution for GR IV owners who carry a second battery.

Best for: Ricoh GR IV owners who carry a spare DB-120 battery and want both charged overnight ready for a full day’s shooting. Skip it if: You only own one battery and charge in-camera via USB-C — the BJ-12 offers no advantage with a single battery. Runs ~$60 — check the current price before buying.