Lankoo 9V Rechargeable Lithium-Ion USB Battery

Daniel C.: Son muy prácticas y duraderas en lo que respecta a su uso en el día a día, yo las ocupo en el campo de golf para el medidor de distancias láser, el cargador tipo de C de carga rápida es muy bueno y al venir 4 no tengo problemas de quedarme sin batería en mi láser.

Mexico on Dec 07, 2023

David K Sexton: These batteries last as long as normal ones and are easily rechargeable.

United Kingdom on Nov 26, 2023

Jimster480: I have looked for a product like this for YEARS now and I am glad it finally exists. I ordered this and waited weeks for it to arrive. I am only using one of the batteries but I have an "every day carry" flashlight that uses a single one of these batteries and this works perfectly. My original battery was worn out and my replacement batteries need a physical charger (can't be charged on battery) but this is the best of both worlds. Way more capacity than the original battery and USB-C charging!
Time will tell how they last and I will report back if they fail but right now I am super happy!

United States on Nov 15, 2023

Amazon Customer: I ordered a set of these and told my husband to play c.o.d. and let me know how long they last he used them for multiple days and they sat in the controller for about a week in between before the first pair died. I'm definitely getting multiple more.

United States on Nov 05, 2023

garvinsrock: Works great with August lock. May not hold a charge quite as long as non rechargeable, but no need as I have a set fully charged to replace the one in the lock when I get the alert

United States on Oct 12, 2023

Alejandro: Muy recomendables, fáciles de cargar, transporta y siempre disponibles.

Mexico on Sep 30, 2023

Charlie Wood: Loved these. Comes with a dual cable making it possible to charge both batteries at the same time.

United Kingdom on Sep 04, 2023

Jemma: Good idea but no cover for inlet so not great if using outdoors in a door bell. Great idea though. Market really needs goid rechargeable lithium AA batteries.

United Kingdom on Apr 29, 2023

Larry: Charges fast and is convenient to use.

United States on Apr 05, 2023

J. Donaldson: Review Update July 15, 2023
I give up. alkaline batteries will last a year. These only last about two months. I'm tired of the slow dimming of the motion detection light and having to charge these. I'm tossing them into the circular file and switching back to aliakline batteries for this application.

Review Update April 14, 2023
These batteries are lasting about two months where alkaline batteries last over a year. This is very poor peformance, especially considering how much I paid for them.

Review Update Nov 21, 2022
As I said in my main review I installed these 4 batteries in an overhead motion detection light in our garage. Alkaline batteries tend to last about a year in that light. These lasted about 3 months before the light wouldn't turn on. So they seem to have far less capacity than the Alkaline batteries. I won't be buying this type of battery again.

At this point I can't recommend these batteries.

Initial Review Aug 31, 2022

Why did I buy 4 of these batteries?

We use virtually only rechargeable batteries in our house. We have over 200 AA and AAA eneloop type batteries in use for multiple camera flash units (Speedlights}...

United States on Aug 31, 2022