High-Performance Tenergy AA and AAA Batteries for Maximum Power Drain

Matt: I like that they look different from name-brand primary cells -hope that they get noticed and recharged instead of being trashed once discharged.

United States on Nov 29, 2023

Terminator Fan: These batteries are pretty good and more affordable than some of the others.

United States on Nov 07, 2023

Mark F.: I have many devices using AAA and AA batteries. These give good performance and I can always have spares on hand.

United States on Oct 22, 2023

Gustavo A.: están muy bien, tienen buena durabilidad

Mexico on Jan 14, 2023

Valtech: Worked as described!

Canada on Oct 15, 2022

Cliente de Amazon: Se cargan bastante rapido y funcionan bien

Mexico on Jun 24, 2022

Martín Campos Dondiego: Me agrado el articulo

Mexico on Mar 20, 2022

NAYELLI: Me gustan porque duran con carga una semana, usándolas diario de 6-7 horas.

Mexico on Dec 10, 2021

Dr D: These are good quality NiMH batteries. Long lasting in daily use. The latest set does seem to not hold its fill-up charge very long. If I charge up a group, and set them aside for a few weeks, my smart charger says their charge state has sagged somewhat. As my charger is automatic, it is charging until the battery output matches its input. Sag is the charger going through its recharge cycle and noting the battery is below standard. It must be somewhat real as it takes an hour or so to bring the cells back to "100%."
They still hold charge near the short term sag for at least several weeks. Given that regular alkalines have a significant likelihood of leaking during the last part of their life, and LEDs just dim and do not change color, in my opinion, most any "AA" or "AAA" application that does not expend the cells in one use should not use alkaline cells.
These NiMH have a very flat discharge curve, so for most applications they provide similar performance, including charge retention, and similar total power per charge, and easily recharge. Considering that they have essentially no memory effect retain useful levels of charge for long periods, and recharge for MANY cycles,...

United States on Jan 26, 2021

Just Another PersonJust Another Person: I purchased these along with the LCD charger and just opened them up and popped them into the decharger/recharger. For me they still had to be recharged (all of them were at 1 bar). I'm about 30 minutes in and it's still 1/3 bars for the AA and 2/3 bars for the AAA. It might be because I may have received an older batch so the "juice" slowly ran out. This may be irritating for people who need to use the batteries right out of the pack.

They were packed in a nice fitting box and the batteries were packaged in sets of 4 in thick high quality plastic (acetate?).

But so far they seem good, I did pop a few out mid-charge and tested them in battery operated devices (flashlights, tabletop vacuum, personal humidifier) and they all worked great. My flashlight was at full brightness even with the 1 bar AAA batteries. I even played around with my dog for a good 20 minutes and it was still going strong (my flashlight has a focused light option so it was like a laser dot).

The batteries do get a bit warm while charging but that's to be expected since it's energy going into a vessel.

I will update my review as time goes on.

United States on Nov 13, 2017