I saw the AAA’s were touched on above. I own a Lumintop tool, the AAA Jetbeam, and the Olight I3E EOS. The I3E is hard to beat as a keyring light. It’s small (I don’t notice it on my keyring) and super simple - one mode twist on / twist off and around an hour’s worth of light per battery. Mine has been on my key ring for 2 or 3 years and it has never failed me. It’s been dropped on hard surfaces several times and most of the anodization has worn off. I’m a naturalist guide in the desert Southwest, so it’s routinely exposed to sand, dust, and over 100 degree weather. For those of you old enough to remember the Timex commercials, “it takes a licking and keeps on ticking”.
User feedback here. I have been using a S1R everyday since I got it in early December 2017.
I think the magnetic charging is fantastic. I have a DVM which I can use to check the battery to see if it needs charging, but if in doubt you can just charge it. I really appreciate not having to remove the battery to charge it. I suspect that is not a big deal to most users on this forum, but I really like it.
600 lumens with a double click is great. The light can do 900 lumens, but it is not that much of a difference really. I will add if the light is cold and you want 600 lumens, you are likely out of luck, as the battery is pretty sensitive to cold temperature. That is, it won’t deliver full power long when it is below say 12C or so. If the light is in your pocket and warm, and you pull it out into the cold it is fine. It just needs to not be turned on when cold.
I prefer a higher CRI light, but for me the form factor, easy of use and charging, immediate access to moonlight mode, outweigh for me the lower CRI of the light. Also like that I have only stubled across the strobe once in real world use. It is very easy to avoid it. The timer is also kind of cool, but I don’t ever use it.
I have had the light fall off my bike twice while riding, once while I was traveling near 20mph, and the light has always just worked. Also, the anodize is still in great shape even with those falls and other drops, and carrying it in my pocket daily.
Did I mention I like the magnetic charging?
The light is pricy, I bought a handful of them during a black friday sale and then sold them all but one to more than cover the cost of the light I kept. A bit of work, but I got a free light out of it and a few extra $
If you decide you want the XR7 or R50, they are both 40% off at battery juction presently, and have been for some time.
My comments below is bias because I have a chance to review some of them... 
| Model | Comments |
| X7R Marauder |
so far there are no similar in-light rechargeable model with such quality, however, make sure you are getting the latest revision. you may also want to consider other non-rechargeable models for such a big light from Olight itself or other good manufacturers. |
| R50 Pro |
This is using a custom 26650, other 26650 battery may be too long in length to fit when you need replacement. Also make sure I humbly recommend you to look for alternative to this model. |
| H2R Nova |
Good headlamp! Highly recommended especially the neutral white model! Remember to ask for new "safe" tailcap, or better, get both the "fire-starter" tailcap and the "safe" tailcap so you have a choice A good alternative is XTAR H3R Magnemite (tho ironically, minus the rechargeable cable). If you are looking for proper headlamp (not right-angle light like H2R Nova), Fenix, NiteCore and Petzl can give you some Alternative in this category is the right=angle lights from ZebraLight and Armytek. |
| M2R Warrior |
IMHO, M2T is a better light. Other alternative includes Olight S30RIII and S2R, although both inherit the fire-starting There are plenty of other lights in this category from other manufacturers. |
| S1R Turbo S |
A good choice. Alternative is FourSevens Mini MKII. Recommend to stock up a few spare Olight 163C05 IMR batteries as this model will aged the cell real fast if you go |
| I3E EOS | This is a very good choice! Keychain carry 2 units (1 black, 1 silver) myself after 2 Fenix E05 failed. Rechargeable |
Note that although Olight's rechargeable system is convenience if you buy into their whole rechargeable family, it is slow to recharge for 18650-size and current may be a little high for 16340-size batteries, not to mention the occasional "hiccup" with their cradle charger...
Looking at your fleet of flashlight models, since you are constantly on the move, imho, a light or two that uses common AA battery is highly recommended. If you would like to stick to Olight, the S1A is an under-appreciated model that could make it to your list. It supports LiIon (14500), NiMH, Alkaline (hightly not recommended) and Primary Lithium (highly recommended) battery making it very versatile when it comes to power source.
Cheers all, the feedback is greatly appreciated. Slowly learning ‘the knowledge’. 
It’s a crash course that’s for sure and must’ve watched a 100 youtube reviews. Still reading through posts on here to see what else floats to the surface. Amazing how the technology has advanced even over the last year or two.
I don’t know if o lights charger will work with other batteries. But you could buy a 4 pack of batteries with a case and store it with the lights. And use a light to keep them charged up. When I first started this hobby. I had 2 lights both USB rechargeable. And K used them to charge my batteries until I got a charger. Which decent ones start at 5 dollars. And you’d always have a extra battery or two. Most sites for every 2 batteries you purchase come with a case
I for one gave my R50 to a tow truck operator in need that I know and i really miss it, was the original version. The X7R is a beast very floody but throws by brute force. I love the little S1 Batons, I just wish they would take 18350’s.
Unfortunately no as the magnetic tail cap/charger needs their proprietary battery which has a + & - on one end. If I buy multiple lights as planned there’s plenty of contingency.
Yes thinking I might add an S2R to the list as it takes the 18650 so can swap it out with the H2R Nova headlamp. I’ve dropped the M2R Warrior from the list as the tail switch is easily bumped on it seems. An MRT Warrior is better but I’ve already been flagged by the admin officer.