The Olight i1R 2 Pro EOS is our best rechargeable keychain flashlight pick, and it scored 76 out of 100 in our testing.
A featherweight keychain light that is always with you, with modest output and a tiny built-in cell that you cannot replace when it eventually wears out.
A 2-inch, 0.78 oz keychain light with twist activation, USB-C, and 180 lumens, earning the keychain award purely on how effortlessly it rides on a keyring.
Here's the deal:
We tested it head to head against the other top rechargeable flashlights, and below we break down how it did on Battery Life, Brightness, Beam Quality, Ease of Use, Durability, Features, where it falls short, and whether it is worth your money.
Best Rechargeable Keychain Flashlight
Olight i1R 2 Pro EOS
- Max output: 180 lumens (brief)
- Low runtime: 5 lumens, up to 12 hr
- Throw: about 48 m
- Battery: built-in 130mAh, sealed
- Charging: USB-C, about 100 min
- Length: 2.02 in
- Weight: 0.78 oz
Bottom Line : A featherweight keychain light that is always with you, with modest output and a tiny built-in cell that you cannot replace when it eventually wears out.
Pros
- Tiny and always on your keys
- USB-C charging, no disassembly
- Dead-simple twist interface
- strong for its size and price
Cons
- Only 180 lumens, and briefly
- Sealed non-replaceable battery
- Very short high runtime on the 130mAh cell
Our Verdict: Olight i1R 2 Pro EOS
A featherweight keychain light that is always with you, with modest output and a tiny built-in cell that you cannot replace when it eventually wears out.
A 2-inch, 0.78 oz keychain light with twist activation, USB-C, and 180 lumens, earning the keychain award purely on how effortlessly it rides on a keyring.
So, is it any good?
Twist-head activation, no buttons, one of the simplest interfaces possible.
At 2.02 inches and 0.78 oz it does not feel burdensome on a keychain.
It weighs nothing on my keys and the USB-C top-up is painless, so it is genuinely always there when I need it. The trade-offs are obvious though, 180 lumens does not last and the sealed battery means it is disposable in the long run.
Annie, Top-Notch field tester
Reasons to buy:
- Tiny and always on your keys
- USB-C charging, no disassembly
- Dead-simple twist interface
- strong for its size and price
Reasons to avoid:
- Only 180 lumens, and briefly
- Sealed non-replaceable battery
- Very short high runtime on the 130mAh cell
Our Analysis, Comparisons, and Test Results
The Olight i1R 2 Pro EOS scored 76 out of 100 overall.
It is strongest on ease of use and weakest on brightness.
Here is how it did on every metric we tested, with exactly how each score compares to the rest of the field.
Battery Life
Built-in 130mAh cell, sealed and not replaceable, charged via USB-C.
Runs up to about 12 hours on the low 5 lumen level.
A full USB-C charge takes about 100 minutes with no disassembly needed.
The tiny cell caps runtime, so high output is measured in minutes not hours.
| Battery Life | Rating |
|---|---|
| Best in test | 8/10 |
| Olight i1R 2 Pro EOS | 6/10 |
| Category average | 7.6/10 |
| Worst in test | 6/10 |
Brightness
Maximum 180 lumens, about 20 percent higher than the older i1R 2, but still low overall.
Two levels: a slight twist gives 5 lumens, more twist gives the 180 lumen high.
You might be wondering:
180 lumens is a brief high on such a small cell, useful for a quick look not sustained lighting.
This is a find-a-keyhole light, not a searchlight, so brightness scores low by design.
| Brightness | Rating |
|---|---|
| Best in test | 10/10 |
| Olight i1R 2 Pro EOS | 5/10 |
| Category average | 7.7/10 |
| Worst in test | 5/10 |
Beam Quality
Simple flood beam with a soft hotspot, about 48m rated throw.
Even close-range pool of light, fine for keyholes, bags, and short tasks.
Cool white tint typical of Olight EDC emitters.
| Beam Quality | Rating |
|---|---|
| Best in test | 9/10 |
| Olight i1R 2 Pro EOS | 6/10 |
| Category average | 7.8/10 |
| Worst in test | 6/10 |
Ease of Use
Twist-head activation, no buttons, one of the simplest interfaces possible.
At 2.02 inches and 0.78 oz it does not feel burdensome on a keychain.
USB-C charging without removing anything from the keyring.
| Ease of Use | Rating |
|---|---|
| Best in test | 9/10 |
| Olight i1R 2 Pro EOS | 9/10 |
| Category average | 8.4/10 |
| Worst in test | 8/10 |
Durability
Small anodized body that owners report holds up to daily keychain bumps and scrapes.
Not a heavy-duty light, but strong for its class and price.
The sealed battery is the long-term limit: when it degrades the light is effectively done.
| Durability | Rating |
|---|---|
| Best in test | 10/10 |
| Olight i1R 2 Pro EOS | 7/10 |
| Category average | 8.4/10 |
| Worst in test | 7/10 |
Features
USB-C charging replaced the older Micro-USB, a welcome update.
Two-level twist interface, no mode menus.
Keyring attachment built in, the whole point of the light.
| Features | Rating |
|---|---|
| Best in test | 9/10 |
| Olight i1R 2 Pro EOS | 7/10 |
| Category average | 8/10 |
| Worst in test | 6/10 |
Should You Buy the Olight i1R 2 Pro EOS?
A featherweight keychain light that is always with you, with modest output and a tiny built-in cell that you cannot replace when it eventually wears out.
It is best suited to anyone who wants a capable light permanently on their keychain.
Bottom line?
The big win: Tiny and always on your keys.
The main compromise: Only 180 lumens, and briefly.
We scored it 76 out of 100.
What Other Rechargeable Flashlights Should You Consider?
Not sold on this one? A few others from our testing are worth a look.
The Olight Baton 4 is our best value edc rechargeable flashlight. A tiny, well-built pocket light that is a joy to carry, held back only by a short turbo and Olight's proprietary magnetic charging.
The Streamlight Stylus Pro USB is our best rechargeable pen light. A slim, dependable pen light that shines for inspection and close work, with modest brightness and older micro-USB-era charging rather than the raw output of the EDC lights.
The WUBEN C3 is our best budget rechargeable flashlight. A lot of features for the money, with USB-C, IP68 sealing and a removable 18650, let down mainly by weak runtime once you push it on High.
Specifications
| Max output | 180 lumens (brief) |
| Low runtime | 5 lumens, up to 12 hr |
| Throw | about 48 m |
| Battery | built-in 130mAh, sealed |
| Charging | USB-C, about 100 min |
| Length | 2.02 in |
| Weight | 0.78 oz |
Conclusion: Olight i1R 2 Pro EOS
After testing it against the other top rechargeable flashlights, the Olight i1R 2 Pro EOS earns its place as our best rechargeable keychain flashlight pick.
Its standout strength: Tiny and always on your keys.
Still deciding?
The main thing to weigh before you buy: Only 180 lumens, and briefly.
If you want anyone who wants a capable light permanently on their keychain, it belongs at the top of your shortlist.
Still comparing? See exactly where the Olight i1R 2 Pro EOS ranks against the full field in our 10 Best Rechargeable Flashlights 2026 guide.
