These are IMO good numbers for a Li-ion cell, and would allow me to use them here for a number of applications where I currently use NiMHs.
Makes sense. Kudos to @xtarflashlight for managing to minimize their cells’ SDR that much.
That would be great! Please do! 
Most of my devices that currently use NiMHs are of the AAA variety… do you know whether any self-discharge tests of XTAR AAAs have been or are being done? TIA!
the guys I mentioned for some years just tested the AA size … in last August for the first time four AAA 1.5V Li-Ion were taken into the test, that are the Xtar “1620 mWh” / “1000 mAh” and the Hixon blue (both without USB port) and two brands with USB-C port and therefore significant less capacity because of the space needed for the vertical USB port …
so the results for the discharge after one year from that test will be available in August at earliest …
Thanks, and if you can please keep us posted!
【Updated】 XTAR 1.5V AA Li-ion batteries’ performance under cold weather
The lithium type makes it work well in cold and hot weather within the temperature of -20°C to 60°C degrees. Absolutely the best AA batteries for your selection of trail cameras, blink cameras, weather stations.
XTAR 1.5V lithium batteries provide better image quality and performance in cold temps compared to NiMH batteries for trail cameras. There are feedback from dannyboy_wildlife, " With the ridiculous costs and inconsistent performance of disposable AA lithium batteries, I decided to give rechargeable AA batteries a try. After testing 12 different types of rechargeable AA batteries over the past year, I have finally discovered the perfect rechargeable battery that can meet the high power requirements of a trail camera and withstand extreme weather conditions. I would highly recommend the XTAR 1.5V 4150mWH rechargeable AA lithium battery."
Have you tried out xtar batteries in your gears? Welcome to share your using experience.
To anyone that might be looking, here’s the URLs for the two posts that dannyboy_wildlife made to that effect:
Instagram
Threads
It would have been great if he had published numbers to back up his claims (I for one seriously doubt any Li-Ion can beat a Lithium primary in cold-weather performance) but if he did, I can’t find them anywhere.
Typical LiIon cells are rated 0 to 60 C. Nimh are often rated 0 to 45C. Panasonic sells NiMh packs rated -30 to 85°C. Energizer Lithium, -40 to 60 C. I am surprised to see Xtar mention -20C. In any case, I wonder how the quoted poster came to his conclusions. The low temperature winner still seems to be the Lithium primaries. But the expense and their disposable nature does work against them when using them in always on devices with large cell count packs.
I have been testing the AXar cells in relatively low drain devices such as clocks and remote controls. I think the Xtar cells have been matching NiMh for longevity. Though the cells in the clocks get changed every time we have a time change. I don’t think they are good for devices that are outside (occasional sub zero temps) and where accessing those for battery changes is a challenge (relatively high self discharge).
I’ve seen Li-Ions quoted for up to a few negative Celsius for discharging (for charging, AFAIK anything under 0C is a no-no for Li-Ions and could seriously damage the cell), but nothing anywhere near -20C. Amazing that these XTar cells can go that far, but it would remain to be seen their actual performance at these kinds of temps (that’s why I wanted to see numbers from dannyboy_wildlife).
