Aa 3.7 Mah Lithium Battery

I purchased the 3400 mAh Rechargeable Lithium-Ion Battery for my LEDlenser ML6 Lantern so that I would have a spare. The lantern comes with a stock 3000 mAh OEM battery. Using a battery analyzer made for testing of Lithium Ion 18650 batteries, I placed both batteries side by side. I ran four tests that Charged/Discharged and Charged again. I wanted to both exercise the new batteries, as well as compare their performance 3000 mAh vs 3400 mAh. Surprisingly the 3000 mAh battery out performed the 3400 mAh battery by a great deal. This was disappointing to have purchased a top notch battery so I would have extra capacity for my ML6 Lantern. Perhaps the company should question their supplier. The 3400 mAh battery was left in the dust. 3000 mAh LEDlenser Battery 3400 mAh LEDlenser Battery Test #1 3263 mAh 3137 mAh Test #2 3269 mAh 3176 mAh Test #3 3357 mAh 3178 mAh Test #4 3316 mAh 3179 mAh

Eartec Rechargeable 3.7V Lithium-Ion Battery for UltraLITE & HUB Systems

I bought this because I purchased a flashlight that will operate on either a AA battery (1.5 volts) or a 14500 battery (3.7 volts) and this battery works very well in this application. It fit in the flashlight just fine and it holds a good charge for a long time. I have only charged it up 2 times since I got it but I am very pleased and I will by again.

Correcting my previous review. I didn't understand 20000 mAh is at 3.7V, so 12800mAh is at 5V is correct. My bad. Now I wish I had kept this battery pack to give it a real chance. It is smaller and lighter than another 20000 I just picked up. If a human reads this, you can delete my first review.

The Ultimate Lithium AA last a long time!

Love the picture quality and the battery life 2 months running strong on lithium AA battery's in a high traffic area the option to be able to run 1 or both packs is awesome so if you want to keep one full pack on hand and you go to that location pretty regular would definitely recommend

The long life AA lithium battery has many uses including in an emergency so keeping spares on-hand isn't a worry due to the 10 year shelf life. I use it in business & personal life for cameras, NOAA weather radio, flashlights, hand-held computer, emergency strobe light, laser level, to name a few. B&H always has fresh inventory

This mic is great for field production jobs. Sturdy and the battery life is great as well if you use the lithium AA. The kit thats available is good quality as well. Haven't had a problem with it at all.

This lithium battery is very reliable.

Works as well or better than OEM especially since it's higher a mAh battery.