High-Capacity 5000mAh NiCd Button Top Rechargeable Batteries by Tenergy

Mike: The price and quality are very good. They last (in use) almost as long as an alkaline battery. The savings with a charger are awesome.

United States on Jun 04, 2023

penny mcnamee: Perfect

Canada on Sep 24, 2022

Amazon Customer: There batteries, they do the job

Canada on Nov 10, 2021

oblivioustoall: I've purchased Tenergy batteries in the past-wasn't disappointed then and I'm not this time. NiCd batteries seem hard to find, especially at a price one can stomach. I am using the NiCd in an old tube radio which has a recharge function for the D cells. Long life and have recharged fully (one time so far).

United States on Oct 20, 2021

VICTOR: Hasta el momento cumpliendo con las espectativas de reemplazo a las baterías Sanyo KR-4400D

Mexico on Jul 05, 2021

Andy K.: I purchased a pack of eight batteries on February 3, 2021 and had at least 2 of the batteries go bad after the first charge. How do I get replacements when it is within the 90 day warranty period?

United States on Apr 15, 2021

jay smith: use for back up power

Canada on Feb 14, 2021

Michaelskyrider: Over the years nicad batteries have received a bad reputation. I have found them to be very reliable and tougher than nails if cared for properly. They like to be cycled. Charged to full capacity and discharged completely, then charged to full capacity again. You can turn on and off whatever device they are powering as many times as you like, but just make sure they are mostly discharged before charging them again. Nicads do not do well with being topped off. Cycle them completely and they will serve you well. I have also found that they perform better over time if stored in a slightly discharged state. They can withstand high drain rates, high heat, quick charging and overcharging better than any other battery chemistry I have dealt with. If heavy use is your game, these batteries will claim their fame. I use these in lights, lanterns and boomboxes. They never let me down. Not even in the heat of the summer desert. I recently found a set of 4 aa nicads that had been sitting in the back of my toolbox for three or so years. I charged them up and put them back into service and they have been performing perfectly for almost two years. I highly recommend, especially for extreme...

United States on Dec 01, 2020

eric wong: Came in a pack of 8. Charged fully. Some used once. Some never used. Mostly just sat there. I recharged maybe once every 4 months. After a year. 1/8 didn’t charge anymore. No reply from customer service.

Canada on Sep 05, 2020

G III: First, I bought 8 (also tenergy brand, centuras) NiMH LSD d cells for flashlights. Then realized they weighed 3lbs, and while they seem to give their advertised 8000mah, boy they're a lot to swing around. So I also got some of these tenergy NiCD d cells, and they're much lighter, a little over half the weight, and seem to be the advertised 5000mah (+/-100 or so). My love for the NiCD chemistry is that they're very forgiving of abuse, and don't sag under load. So when I run them in an incandescent flashlight, it stays nice and white for most of the battery life. And when I forget the same light on and drain them to 0v, when I charge them in the morning they'll come back. Side note, this happened once and one was forced into reverse polarity- the bottom swelled and the polarity stayed reversed... For about a day. The case is still bulged on the bottom, but it recovered after a day of rest and is back to its 5 amp hour self. So that's cool. Nickel cadmium batteries are essentially a solved problem, and they work reliably. Unbiased review from a fan of flashlights and batteries.

United States on Aug 16, 2016