How to Recharge a Gun Safe Dehumidifier (Types and Methods)

Recharging a gun-safe dehumidifier battery is easy when you follow some crucial steps. These depend on which type of dehumidifier you have. For silicone gel ones, you should put them in the oven. It is a simple process of just plugging in the battery for battery-based dehumidifiers.

SentrySafe gun safe

Getting Started

Moisture and metal have been in constant battle since the inception of time. If you have any metal object lying around your house, rest assured the humidity might impact its quality over time. Gun-safe dehumidifiers deal with these humidity problems. These nifty devices can keep guns and ammo stored inside them protected from moisture content. But even they require some recharging to bring back their battery power and keep things going.

How To Recharge A Gun-Safe Dehumidifier


Most Gun Safe dehumidifiers are built with a recharging mechanism. The most popular, easily rechargeable ones are Silica Gel Dehumidifiers.

Recharging a Silica Gel Dehumidifier.

You will see a part similar to a screen at one of the canister sides, which flashes a specific color; this indicates how much juice is left before you recharge the canister.

Showing a bright orange would mean plenty of time before recharging the battery. On the other hand, dark green indicates that you have reached the maximum moisture saturation level. Although, the indication might differ from manufacturer to manufacturer.

For example, purple indicates low levels in some canisters, while bright blue indicates high levels. This blue is your cue to replenish the canister and resume protecting your metal, such as guns, ammo, and any critical material from humidity. Here’s how to recharge the canister. 

Step 1: To recharge the canister, you need an operational oven. Any conventional oven will do the trick. Simply place the canister(s) inside the oven. There is no need to preheat it. 

Step 2: Adjust the temperature to 250 degrees Fahrenheit. Be mindful that some brands require you to heat your canisters to 350 degrees. Leave the instruments inside the oven for 2-3 hours.

Set a timer for the same time. Be sure to leave them in the oven until the prescribed time expires, even though the screen’s color has changed from dark green to orange or purple to bright blue. Try to keep it inside for three hours if you placed it inside when all the power was exhausted. 

Step 3: After the lapse of three hours, put on thick mittens and take out the canisters. Leave them out for 30 minutes or an hour, and let them cool down to the touch.

Do not, and we repeat, do not think about speeding up the process by hurling the canisters inside a refrigerator. Using a fridge might damage the entrails of the instrument or even make it defunct. Patience is the key here. 

Step 4: Once it is cool to the touch, you can place it inside the gun safe and keep your firearms protected from humidity. When the color changes again, you can repeat the same practice, making it affordable and straightforward to keep your guns and ammo safe from moisture.

Wrapping Up

A Gun Safe Dehumidifier is an excellent device to safeguard the durability of your expensive guns and firearms. If you live in a region high in moisture, it is all the more crucial for you to heed their maintenance. Ensuring that the dehumidifying canister always has enough battery to protect your guns is vital. And now you know how to replenish the battery! 


(1) Fisheye –
(2) lens –

How helpful was this article?

Were Sorry This Was Not Helpful!

Let Us Improve This Article!

Please Tell Us How We Can Improve This Article.