What’s the Temperature Range for Outdoor AEDs?

Outdoor AEDs and Weather: What You Need to Know

Yes, temperature is a concern—but no, it doesn’t have to be a barrier. Outdoor AEDs have been publicly accessible across Europe for decades, saving countless lives in all climates. Generally speaking, with the right cabinet and placement, AEDs can function reliably year-round, as long as they are kept above 0°C (32°F) and below 50°C (122°F).

Weather and sun exposure can impact an AED’s performance, particularly its pads and batteries. Most AED pads contain a water-based gel that can freeze, and extreme temperatures—both hot and cold—can reduce battery efficiency, as many cellphone users have experienced. That’s why choosing the right climate-controlled and weatherproof cabinet is essential.

How to Protect Outdoor AEDs from Weather & Sun Damage

• Climate-Controlled Cabinets – Choose a cabinet with both ventilation (V) and heating (H) to keep the AED within its optimal temperature range. Even in mild climates, heating elements help preserve battery life by maintaining room temperature, while in warmer climates, ventilation prevents heat and moisture buildup. When purchasing a SaveStation®, look for “VH” in the model name to ensure both features are included.
• Quality Construction – Cabinets should be weatherproof, rust-resistant, and built to withstand sun, wind, and rain. Waterproofing is essential for long-term durability.
• Shaded Placement – Install AEDs under canopies, overhangs, or other shaded areas to minimize direct sun exposure and help maintain stable internal temperatures.
• Check the AED’s Operating Range – Not all AEDs are equally suited for outdoor placement. Before purchasing a cabinet, ensure it will keep your specific AED within its manufacturer’s recommended temperature range.

⚠ Beware of the Greenhouse Effect! Standard indoor AED cabinets should never be placed outdoors. Their metal construction can rust, and their large glass fronts trap heat and moisture, creating a greenhouse effect that can render an AED inoperable.

By choosing a climate-controlled, weatherproof cabinet and placing AEDs in shaded locations, you can extend their lifespan and ensure they’re always ready to save lives.