If you're running an off-grid solar system, you already know: batteries are the heart of it. But they don't belong in your living room, your garage, or out in the open weather. Rain, snow, dust, and temperature swings can shorten battery life fast.

That's where our Outdoor Battery Enclosures come in.

We supply rugged, weather-resistant enclosures designed specifically to protect your batteries and associated electronics from the elements while keeping them safely separated from living areas.

Built for the Real World – NEMA 3R Rated

Our most popular enclosures are NEMA 3R (rainproof) mill finish aluminum boxes. That means they're built to shed rain, sleet, and snow – perfect for outdoor installation in Colorado or anywhere with four seasons.

Mill finish aluminum – Lightweight, strong, and naturally corrosion-resistant.
Rainproof design – Vented to prevent condensation, but sealed against direct moisture entry.
Easy access – Secure latch and hinge design for routine battery checks and maintenance.

Sizes for Every System – From 1 Battery to 10+

We know every off-grid setup is different. That's why we stock a range of sizes:

Small boxes – Perfect for a single battery powering a gate, weather station, or shed light.
Medium boxes – Hold 4 to 6 batteries for a small cabin or remote monitoring site.
Large enclosures – Hold 6, 8, or even 10 batteries when pad-mounted. Ideal for larger off-grid homes or backup systems.

Many of our standard mill finish aluminum battery boxes are in stock and ready to ship – no long lead times.

More Than Just a Box
Need room for charge controllers, breakers, or monitoring gear? Many of our enclosures offer extra internal space for associated electronics. You can keep your whole power system in one protected, weather-tight enclosure.

Not Sure Which Size You Need?
Give us a call at 1-800-766-7644. We've been helping customers go solar since 2002, and we're happy to help you match the right battery enclosure to your system.

Locally owned and operated in Colorado since 2002.
Visit us in New Castle, or browse our in-stock enclosures online.