#18 in Household battery chargers
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Reddit mentions of Nitecore F2 Flex Portable Dual-Port Power Bank USB Battery Charger & LumenTac Battery Organizer
Sentiment score: 4
Reddit mentions: 5
We found 5 Reddit mentions of Nitecore F2 Flex Portable Dual-Port Power Bank USB Battery Charger & LumenTac Battery Organizer. Here are the top ones.
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BATTERY CHARGER & POWERBANK - The F2 is a dual purpose battery charger and power bank for charging 18650, RCR123, 26650, 14500 and other IMR/Lithium Ion batteries. The charger can also be used with batteries as a powerbank to charge cellphones, flashlights, headlamps and other USB devices on the go.INTELLIGENT CHARGING - Nitecore's intelligent charging system will detect and apply the appropriate charging method while keeping your battery protected from overcharging and short circuits. LED indicator lights on the top of the F2 report real-time charging informationUP TO 2A SPEEDS - Enjoy up to 2A charging speeds so your batteries and devices can power up quickly.ULTRA COMPACT - At 1.64 ounces, the F2 is lightweight and compact so you can take it with you anywhere.PACKAGE CONTENTS - Nitecore F2 Flex Dual-Port Power Bank Charger, USB Cable, 2x Rubber Bands, Instruction Manual/Warranty Information, & LumenTac Battery Organizer (securely holds 2x 18650 or 4x CR123A batteries) NOTE: The F2 comes with a USB to USB 3.0 cable, but is also compatible of input/output with other Micro-USB, USB, & USB charge cables.
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I'm a fan of 18650's because they're field rechargeable off a solar panel, and can be used for power banking as well. My entire power kit revolves around them.
You can use rechargeable RCR123 batteries in your optics that won't fit an 18650. They run my vortex strikefire II just fine.
The cr 123's and 18650's are rechargeable with this or this, meaning they can be charged from any USB solar charger, wall adapter or car adapter. In addition, those chargers have an output side so you can use an 18650 to charge your phone or whatever.
Edit: There are also rechargeable versions of CR2 that the nitecore chargers should be able to handle as well.
Anker battery packs are good. Depending on what mods your vapers use this might work https://www.amazon.com/gp/product/B071P7RVNX/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 uses the same 18650s some vape mods use.
I agree with almost everything OP said, but I think the F2 charger is betterlink here . It can also act as a powerbank to charge a phone off of your 18650 if need be. Certainly a 4 cell charger would be nice for a 4 cell light, but if these are going to sit dormant for long periods of time, taking the time to charge 2 cells at a time matters less. Similarly, this can charge off of usb meaning if you have an anker solar panel or similar phone charging device you can use it to charge your flashlight. With the other setups, you need 110v ac to be up and working.
It really depends on how long your trip is, and how much light you'll be using over the course of it. Getting a battery charger is a good idea. Since you're trekking and weight counts, I'll recommend a Nitecore F2 so you can bring it along. It can be a charger (from USB) or a power bank, using the same 18650 cells as your Wizard. You'll be more energy efficient by just carrying a couple of extra 18650 cells and swapping them into your light as needed, instead of trying to charge it off of a power bank. (you lose about 20% of the energy by charging one cell off of another). As far as battery safety, when the cell is in the light it is in the safest possible condition. If you bring extra cells, you should store them in a waterproof container designed for the purpose. Modern lithium cells have pretty good cold resistance, but if you are going to be using them in a particularly cold environment, there was a new cell recently released that is good to -40 (C or F, it happens to be the same.) However, you can buy almost 6 normal cells for what it costs, and most of them should work to temperatures well below freezing. These in the last link are one of the best deals on the market for capacity and discharge capability, and would be good for power bank use in an F2 or backup cells for your Wizard. Hope all of this helps, and good luck!
I don't think you'll find any 18650, usb-rechargeable lights with lower than .4 lumens. Most people would consider anything sub-lumen good for the purposes you describe, so there aren't many options that go lower.
If you disagree, the compromise may be to get a H600fd III like others suggested (compromising on usb charging, but gaining ultra low modes). Then get a Wowtac USB rechargeable battery. I don't know for sure this battery will fit. It's possible it is too long and you would want to check this before purchasing if interested.
Alternatively, carry a Nitecore F2 or F1 as your charger/powerbank and bring extra 18650 batteries. Carry them in cases like this. Carry unused batteries in one pocket of your backpack and move them to another pocket when drained. This is my setup for backpacking, although I haven't tried it since switching away from a traditional power bank (which is heavier and less efficient than having removable batteries).
Your last option is to get the Elf C2 and carry a separate map light if you find .4 lm to be insufficient. I don't think you'll find any other good alternatives.