They have a buck circuit in them that regulates the voltage output to 3 volts flat, so there's no chance of overvolting anything. If you have one of those incompatible lights these special 16340's from keeppower may be a good option. Most lights that accept a single CR123A can also accept 16340's now, but there are a few that can't. At worst, it simply won't turn on so there's no risk of damaging your light. It's lower voltage than two CR123A's, but that won't be a problem for most lights. It's the same diameter and length as two CR123A's put end to end. If your light doesn't support an 18650 cell, this 16650 cell and an inexpensive charger may be a good option on lights that have no official rechargeable support. If your light can take an 18650, that is definitely the best option as they are inexpensive, relatively easy to get, and offer very high capacity. Most relatively recent lights that take two CR123A's end-to-end can accept one 18650 cell instead. Replacing multiple cells with rechargeables It all depends on the light you're using and its acceptable voltage range, so always check your light's manual to see if it can officially support rechargeable cells. That extra volt when fully charged can really cause problems, especially when they cells are used in series. They were revolutionary when they were introduced, but nowadays they are outperformed in almost every way by lithium-ion cells.ġ6340's are not always a drop-in replacement for CR123A's because they have a higher voltage. They have a voltage range of like 3.2-2.8v or so and their nominal voltage is 3v. Their nominal voltage is 3.6-3.7v because that is roughly in the middle of their voltage range.ĬR123A's are lithium-primary chemistry and are not rechargeable. They are lithium-ion chemistry rechargeable cells with a voltage range of 4.2-2.8v. RCR123A's and 16340's are the same thing, but 16340 is the more proper name. Hello fellow reddit user! It appears that you're looking for a rechargeable alternative to your CR123A batteries. You can make all the difference in someone's life. Suicide Prevention Lifeline Website or call them at 1-80įor international help please visit 's Hotline Finder to get in touch with the assistance available to you in your country. Don't let yourself or another fall to suicide. There are many resources available for veterans and civilians alike. If you or someone you know is considering suicide please help them. Suicide is a serious problem all around the world.
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