If you’re an iPhone user who likes to keep track of where your stuff is, you . The second generation model released by Apple in every way (except for the glaring lack of a keyring hole, that is). While it is easy enough to with both versions of AirTag, you don’t want to worry about the battery life of the device for a long time. Enter Elevation Lab’s extended battery case for the AirTag, which is currently available .

The case normally retails for $23, so that’s 30 percent off. This is not the first time we saw this dealbut it’s a pretty decent even.

Elevation Lab

Elevation Lab says its AirTag case can extend the tracking device’s battery life to 10 years, and it’s now on sale.

This can be one of the more useful around for some use cases. It’s not really helpful for an AirTag that you put in a purse or attach to your keys, because it’s too big for that purpose — and it doesn’t have a hole for a keyring. However, if you’re looking for an AirTag case that you can keep in a suitcase or backpack and won’t need to be touched for years, this could be the ticket.

Elevation Lab says that, if you put a pair of AA batteries in the case, it can extend the tracker’s battery life up to 10 years (the brand recommends using Energizer Ultimate Lithium batteries for best results). The AirTag is set to run for over a year on its standard CR2032 button cell.

The case also gives the AirTag extra protection. It is sealed with four screws and it has an IP69 waterproof rating. Plus, it’s not supposed to be like an AirTag case, so someone who steals something with one inside might not even realize that the thing they’re taking is being tracked.

There are other disadvantages, however. Because the AirTag is locked inside a case, the sound it emits is quiet. Elevation Lab says the volume of the device is about two-thirds the level of a caseless AirTag. However, the second-gen AirTag is more powerful than its predecessor, which should alleviate that issue.

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