Genki Energy Pack Review

For those who aren’t aware, the Nintendo Switch 2 is out, and it’s fabulous. It’s not that much different from the Nintendo Switch, but it’s bigger, faster, and stronger. That said, if you’re gaming on the go, the battery might not hold up very long when playing titles with heavier graphics.

To combat this, Genki released the Energy Pack, which functions as a standalone battery bank for your Nintendo Switch 2 or in conjunction with the Force Field 2 Case. Will we prefer to use the battery bank solo, or is the case a must-have for this product to work correctly? Let’s dive in and find out.

The Rundown

You can use the Genki Energy Pack in a few ways. First, you can use the included MagSafe ring sticker to make your Nintendo Switch (1 or 2) magnetic, allowing you to attach the battery bank directly to it. If you don’t want to add anything to your Nintendo Switch permanently, you can buy Genki’s Force Field 2 Case, which has MagSafe built into its design, so you don’t have to use the ring sticker. Lastly, you can use it as is, without attaching it to the back of your Nintendo Switch. This isn’t as polished an experience, but it works well nonetheless, especially if you don’t want to invest in a case or attach anything to your Switch.

The battery bank is metal, so it adds some weight to your Nintendo Switch, but it’s highly durable. The front side features a digital dashboard and a silicone pad to prevent the metal from slamming against anything while you’re playing.

The Nintendo Switch 2 has a 5,220 mAh battery. In contrast, the original Nintendo Switch and the OLED model have 4,310 mAh batteries, and the iPhone 17 has a 3,692 mAh battery. The Genki Energy Pack is advertised to have a capacity of 10,000 mAh. So, in theory, you’ll get nearly two full charges from this battery bank, right? No, but there are a few reasons for that.

Every battery bank we’ve ever tested (dozens at this point) has had a significant discrepancy between the advertised capacity and the actual power your devices receive. This is due to voltage conversion loss, charging inefficiencies, and other energy losses from cables, screens, and adapters. Some battery banks perform better than others, and some brands are more effective at communicating this than others.

We’ve developed a testing process for battery banks that we used in our Portable Charger Guide to test the Genki Energy Pack. In testing at 2 amps, the battery bank outputs 5,478 mAh on a full charge, which is roughly equivalent to the size of the Nintendo Switch battery. This is lower than average in our testing, but certainly not the worst that we’ve seen.

The battery bank has a single USB-C port and comes with a short cable that works perfectly to connect the battery bank to your Nintendo Switch when it’s attached to the back of it.

When not attached to your Switch, you can use this as a standard battery bank to charge your iPhone or other devices. Because it’s MagSafe, it’ll latch onto your phone and also offers wireless charging.

Packability

The Genki Energy Pack is roughly the size of a brand-new deck of cards in the box. It’ll fit into your pocket but may be uncomfortable in smaller pockets. You can hold onto it in your palm without issue, but it becomes a little cumbersome to hang onto when attached to your phone.

When used with a Nintendo Switch, it adds some weight, but the size and bulkiness are not noticeable. The only time our tester noticed it was when sitting on the couch with a pillow on his lap, as the battery bank pushed it closer to us than usual. It wasn’t uncomfortable, just noticeable.

It’ll fit into your tech pouch or sling without issue, and we appreciate the compactness of the included cable. The cable won’t work for charging all your devices, but it’s handy for using it with the Nintendo Switch.

Quick Comparison

If we’re honest, we’ve never tested a battery bank with this specific use case before. Typically, we test battery banks for phones and other devices, such as a Nintendo Switch, but not one specifically designed for gaming.

In testing for the Portable Charger Guide we mentioned earlier, we measured the percentage of each model’s advertised mAh compared to our testing results. Before testing the Genki Energy Pack, the lowest model was the NITECORE Carbo 10000 Power Bank at 61.99%. The Genki came in at 54.78%, which is poor when compared to the best battery banks that we’ve tested. Still, this device has a specific purpose, and we think that’s worth considering.

In terms of size, the Genki Energy Pack resembles the Clutch Charger Pro, which is thinner than the Genki but has a similar footprint. It’s rated at 5,000 mAh, which, if our testing is any indicator of performance, means it’ll output somewhere between 3,000 and 3,500 mAh, making the Genki seem like a home run with over 5,400 mAh at roughly the same footprint as the Clutch.

If you’re specifically looking for a battery bank to use while playing your Nintendo Switch, the integration of the Genki Energy Pack is fantastic, and the device is worth considering. If you’re looking for a general-purpose battery bank, we recommend looking elsewhere.