Panasonic eneloop pro AAA High Capacity Ni-MH Rechargeable Batteries - Pre-Charged & Ready to Use (BK-4HCCA16FA)

Daniel P Ziemba: 2DEC23
I've used regular (non-Pro) Eneloop cells for many years and I'm very happy with the results. As these batteries age two things happen, their capacity (mAh) decreases and their internal resistance increases. My most common use for AAAs is in a headlamp. After about 6 years use, I find the internal resistance increasing to unacceptable levels. I use an Opus BT-C3400 charger/analyzer to measure all this stuff. Starting out at, if I remember correctly, something less than 200mΩ I find that many of these original Eneloops are sitting around 2Ω now i.e., they're wearing out and need replacement. BTW - They're still plenty good for lower current applications.
I purchased the Pro version in hopes that the internal resistance will remain low over a longer period. We'll see. The originals are rated 'up to' 2100 cycles while these are only rated for 500 albeit at a higher capacity. It's still more $/mAh, but it's worth it if the battery internal resistance stays low. As I said: We'll see.
I checked the resistance of all 16 cells and came up with about 100mΩ each, which is good. The cells I received were somewhat discharged requiring >500mAh charge each. 22-05LQ was...

United States on Dec 03, 2023

HalpernRonen: The item material is excellent.

United States on Nov 20, 2023

HECTOR B: son muy buenas tardan en descargarse

Mexico on Nov 03, 2023

Denis Radutsky: Best batterys for every day use

United States on Sep 02, 2023

MOHAMAD I.: I was very fortunate to get the 16x AAA for below SGD67. It would easily have been priced SGD20 higher or more. Very happy with the purchase.

Singapore on May 31, 2023

Eraldo Lima: Produto altamente recomendado para quem quer usar as baterias em flashes. Impressionante!!!

Brazil on May 27, 2023

Value HunterValue Hunter: PROS/What I Like:
1. VERY long lasting. I have over 5 years of use and going strong! Company claims 10 year life span up to 70% charge
2. Maintains great charge
3. Environmentally friendly by reducing toxic waste vs disposable single use batteries
4. Convenient. Don't need to go to the store to buy batteries all the time. Just switch them out with your extra batteries and charge them up!
5. Out of box factory SOLAR POWERED pre-charged for instant use
6. Maintains up to 85% of charge after 1 year when not in use
7. Pro version is higher capacity and power @ 950mAH vs standard version @ 750mAH
8. High capacity up to 500 charges!
9. Extreme temperature rated down to -4 deg F.
10. Made in Japan who continues to design and manufacture high quality products

CONS and Other Considerations
1. Not really a con but more of a consideration, the charge time is 4 hours for the black pro battery and 2 hours for the white or green standard version. This hasn't been an issue for me because I always keep extra charged batteries available.

I got tired of buying bulk batteries from Amazon or Costco only to have them die and then run to the store when one...

United States on Apr 27, 2023

Gldngrl: These are the best rechargeable batteries that I've found to date. The superior brightness of lighting is important to me because of a vision impairment. Granted, these batteries are quite pricey, but in this case, you get what you pay for...

United States on Apr 18, 2023

Jean-Guy Hinse: Bon rapport qualité prix

Canada on Oct 15, 2022

Matthias EcoAmbitionsAustralia: Many years ago we purchased our first digital camera. The shop assistant recommended a set of Panasonic rechargeable AA batteries with it. We still use these batteries after at least 15 years, they still work fine.
In our house we don't use "throw away" batteries at all. We have rechargeables for all devices, as we believe this does have a positive impact for the environment.
I have tried many brands of rechargeable batteries, but over time, all have failed. With the exception of the Panasonic ones mentioned above.
So a few years back I changed all household batteries over to Panasonic and had not had a single issue since. The last longer, keep the charge when not in use, and don't have acid running out of them like some others.
When I purchased a set of thermometers that required AAA batteries, I consequently bought this set, and they work just as flawlessly as expected.
A word on keeping the charge when not in use: We keep an emergency set in our house. It is recommended to have batteries in it. With all other brands I wouldn't use rechargeables, but with Panasonic, I charge them when they are empty, and then take them out of storage when needed. Since they don't...

Australia on Nov 06, 2020