Tenergy 9V Alkaline Battery - 6LR61 - Long Lasting Power for High-Drain Devices

Radio_Tech: Bought for smoke detector replacement batteries....no chirp now :-)

United States on Dec 13, 2023

Christopher Johnson: I've used these for a while. Excellent battery

United States on Dec 09, 2023

Thomas chathanthara: Good performance, but brittle. Handle with care

United States on Feb 20, 2021

k: I read the reviews, the price was great, and I have lots of smoke detectors that will soon need a battery change. I ordered the 12 pack of Tenergy 6LR61 9V Alkaline Battery, Non-rechargeable Battery for Smoke Alarms, Guitar Pickups, Microphones and More, 12-Pack. The midnight chirp began last night night, and today I opened the box and pulled out a battery replacement. I struggled with fitting it into the slot, finally managed to force it in place, but was unable to close the battery door panel. I tried another detector to make sure it wasn't only that unit, and the battery is too large to fit. I own nothing else that uses 9v batteries, so these will never be used. I have messaged Tenergy, even though the return window has closed, and hope they will do the right thing. Meanwhile, this was not a bargain, but rather a $14 mistake.
Update: Reached out to Tenergy and received a quick reply. Although they say the size of their batteries is standard for all 9v, they graciously issued a credit. I have increased my rating to 5 stars based on customer service.

United States on Apr 12, 2019

Sean S Walker: Though I haven't tested these batteries with one of those fancy testers, they have performed as well as any other 9V I've used. My two primary uses are smoke detectors and guitar pickups. I play guitar as part of my work and cannot have my pickup lose power. Since I didn't want to sell my kidney in order to buy 9V batteries (Energizer or Duracell), I had to find something cheap and reliable. As would any person in my position, I turned to the reviews on Amazon. I first looked at the Amazon Basic 9V, but read that they are oversized and will not always fit into a standard 9V slot. Comparing prices and ratings of dozens of 9V batteries, I decided to go with the Tenergy. They are low cost and have a 4.5 star rating, so I figured it was worth a shot. These batteries have not disappointed. According to my observations, these batteries perform as well as any of the expensive big name batteries. No, I can't tell you the voltage output of this battery (though I did stick my tongue to the terminals and felt a shock); I can only say that they last the same length of time as an Energizer. Nothing negative to say about these– buy some and save some money.

United States on Dec 30, 2016