Rechargeable Lithium Ion Aa Batteries

[Black] 50W is very loud! Lightweight Lithium Ion rechargeable batteries. Very easy to use. I especially like the 10 second built-in memory.

[0.025 lb] This is my first time purchasing rechargeable Lithium Ion batteries with a built-in USB charging port. That's a very convenient way to charge the battery especially if you forgot the adapter at home.

[0.155 lb] Rechargeable lithium-ion battery used for Olympus camera works well everytime.

[0.03 lb] Eartec Rechargeable 3.7V Lithium-Ion Battery for UltraLITE & HUB Systems

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

[11.1 VDC] I use this battery as a back-up to my Nikon battery EN-EL4a rechargeable Lithium-ion Battery Pack. I always use my original Nikon battery but if I am out in the field and my Nikon battery goes down after many shots, I then switch to the the Watson EN-EL4A Lithium-Ion Battery Pack as my back-up until I can re-charge the Nikon battery again at home. I find it's more economical using it that way since there is such a big price difference between the Nikon Battery and the Watson Battery. However the Watson battery is a very good battery and reliable in every way.

[0.355 lb] The zx900 rechargeable lithium ion battery performed well in cold temperatures. It is easily recharged with the included charging cable.

[0.25 lb] Like the ability to change 2 batteries at the same time and keep them together. Thinking about getting another for my other two Lithium Ion batteries.

[0.195 lb] Lithium Ion batteries are notoriously mislabeled for capacity. I use these for camera stabilizers and flashlights, and expect performance. This Nitecore battery provides the full labeled current with minimal voltage drop. I have cycled one of my three four times, and performance was fully maintained. The only issue was with my chargers - the batteries would show fast charging, but never quite finish. Removing the battery and reinserting showed a fully charged battery, suggesting an issue with both chargers. Performance is very good.

[0.115 lb] I do not like spare lithium Ion batteries floating around in a case or bag. And why Profoto does not provide a custom pouch for their batteries is quizzical. After reviewing many of the third-party pouches available, these LensCoat BatteryPouches fit the bill. A lengthy video chat with a patient and very helpful B&H CSR was critical in finding the right product! Thank you Dave!