Gridfinity SR521SW Battery Holder 2x1, Holds 45 Cells

SR521SW button cells are tiny, easy to confuse with similar sizes, and way too easy to lose once the original packaging is opened. If you replace watch batteries, maintain small devices, or keep spares for household gear, you know the usual storage options are not great. Cards rip, little packs spill, and loose batteries end up rattling around in a drawer with screws and adapters. This Gridfinity SR521SW 2x1 holder fixes that problem with a clean, dedicated organizer that fits right into the Gridfinity system and keeps your coin cells tidy.

Built on a 2x1 footprint, it drops neatly into a Gridfinity base and lines up with your other bins so your storage stays modular and easy to maintain. The holder stores up to 45 SR521SW batteries, each in its own slot. That separation is the real win. You can see your supply at a glance, grab a single battery without spilling the rest, and avoid mix ups with other button cell types you might keep nearby. It also helps prevent batteries from getting scattered into corners of a drawer where they disappear until you buy duplicates.

The 45 slot capacity is perfect if you like keeping a real stock on hand. It works great for watch repair hobbyists, small electronics tinkerers, and anyone who maintains multiple devices that use SR521SW cells. It also supports a cleaner workflow if you keep fresh and used batteries separate. Keep new batteries in this holder, and move questionable ones to a different bin for testing or recycling. That simple habit saves time and prevents mistakes.

This holder fits nicely in a repair station, electronics drawer, tool cart, or home maintenance kit. Pair it with other Gridfinity battery holders for AA, AAA, 9V, and other coin cells to build a battery section that stays organized long term. If you want your SR521SW batteries visible, countable, and always easy to reach, this 2x1 holder makes it happen.