18650 Batteries

[Cameramonkey]

They are similar, but not the same. The 18650 is wider. It will not fit into the same hole that a CR123 will, but it looks like it will until you try.

Maybe I am recalling the interchange backward. I know I have a light that uses a rechargeable like that and I can sub 2x 123

 

[Brian's Surplus]

 

[BankShot]

Maybe I am recalling the interchange backward. I know I have a light that uses a rechargeable like that and I can sub 2x 123

ProTac® HL-X // ProTac® HL-X USB | Handheld Flashlight | Streamlight®

This is what I was thinking of, but it looks like it's maybe not an 18650. Maybe a 16650 like Brian mentions above.

 

[Cameramonkey]

ProTac® HL-X // ProTac® HL-X USB | Handheld Flashlight | Streamlight®

This is what I was thinking of, but it looks like it's maybe not an 18650. Maybe a 16650 like Brian mentions above.

exactly.

 

[Rookie]

My bad, it is 16650. My thermal scope runs them instead of cr123. Kind of costly on the initial buy, but it quickly pays for itself when you're burning three cr123 every two hours.

 

[Brian's Surplus]

My bad, it is 16650. My thermal scope runs them instead of cr123. Kind of costly on the initial buy, but it quickly pays for itself when you're burning three cr123 every two hours.

The rechargeable batteries are great, for MOST devices. For high-drain devices, they sometimes don't work.
The only reason I know about the difference in size between those batteries is because I've made the same mistake myself. They look almost identical.

 

[gassprint1]

Can anyone recommend a decent 18650 battery and source? Most of what I see on Amazon look a little sketchy or downright fake. Doesn't have to be super high end. I don't really want to pay $20 per battery. I'm just looking for something that is a real 18650 for a decent price.

Is your battery a lipo battery? If so, why not get it charged.

 

[BankShot]

Is your battery a lipo battery? If so, why not get it charged.

It's Li-ion. I recharge it, but I am wanting a couple spares to take on the road with me.

 

[BankShot]

I like Panasonic/Orbtronic brand... Samsung is my second favorite. I'll usually purchase from Battery Junction. Alternative source is 18650 Battery Store. You can also order directly from Orbtronic.

Battery Junction

18650 Battery Store

Thanks for all the recommendations, everyone. I found what I needed at Battery Junction. Unfortunately, I found more than I needed and spent enough to get the free shipping.