ProMaster 4609 Dually 充電器（適用 Olympus BLN-1）

I was tired of waiting for one battery to top up before swapping in the next, so the dual-slot design here is a game changer for back-to-back shoots. Both LEDs turned solid within a couple hours, and it's compact enough to toss in my bag without adding bulk.

Charging both BLN-1s at the same time has cut my prep time in half before shoots. The LED indicators are clear enough to see across the room, and it's honestly the cheapest way I've found to keep two spares topped off.

The LED indicators are a nice touch—I can glance over and see exactly when each battery’s done without fiddling. Charging two at once has saved me hours before a shoot, and it’s honestly the most practical add-on I’ve bought for my camera in a while.