Very Quick
"I can't vouch for how long they will last, but there is no current being pulled from the battery unless the sensor goes off, so I think I'm ok for a few years, but I plan to test every 6 months or so - easy for me to do as I put Velcro on each sensor so I can remove easily from under the sink, the battery pulls right out, and I can test quickly."
"Voltage and current were being logged ounce per minute and this data was used to calculate the Amp-Hour with a 0."
"I think we have 2 more to check on, and some were actually okay but 2 dead out of eight (25%) is a terrible failure rate, especially when you are using them for things like smoke detectors."
"All the Amazon Basics batteries fit the same, but name brand 9V batteries fit much better."
"* They seem to work just as well as other brands."
"I was trying to use these in smoke alarms and out of the 16 (2 boxes) that I bought, 6 of them were no good."
"I had to go buy name brand 9V from the grocery store and those work just fine."
AmazonBasics 9 Volt Everyday Alkaline Batteries (8-Pack) (Click to Compare Deals)
Quick
"* I did not read the reviews before purchasing these batteries - and if I had, I would not have purchased them... I can't vouch for how long they will last, but there is no current being pulled from the battery unless the sensor goes off, so I think I'm ok for a few years, but I plan to test every 6 months or so - easy for me to do as I put Velcro on each sensor so I can remove easily from under the sink, the battery pulls right out, and I can test quickly... 50, so not much more than these $10 - so I did buy 8 of those to be used ads backups - but if these Amazon batteries work under load (when the siren goes off) I'll be buying more."
"The Amazon battery was actually slightly more expensive when represented in cost per Watt-Hour... You will probably barely notice the difference in capacity, so if you don't want to waste time shopping around then its a good choice... Voltage and current were being logged ounce per minute and this data was used to calculate the Amp-Hour with a 0."
"* Of course, batteries are something you buy ahead of time for later when you need them..... I think we have 2 more to check on, and some were actually okay but 2 dead out of eight (25%) is a terrible failure rate, especially when you are using them for things like smoke detectors. I'll be buying name-brand in the future."
"The size difference became apparent when swapping in one of these batteries for our acoustic guitar electric pickup. The battery was inserted correctly, but the door to the battery was difficult to close because the battery was a fraction of an inch bigger than the compartment. All the Amazon Basics batteries fit the same, but name brand 9V batteries fit much better."
"* They seem to work just as well as other brands. I buy the 9volt with subscribe and save for my smoke alarms. When I get them I know it's time to change the smoke detectors batteries."
"not sure I'll ever have confidence to buy Amazon Basics again! I was trying to use these in smoke alarms and out of the 16 (2 boxes) that I bought, 6 of them were no good. when put them in the alarm they did not have a full charge so the alarm kept chirping."
"* I bought a big box of these to replace the batteries in my smoke detectors. I have 2 different types of smoke alarms in my house and non of the Amazon Basic batteries worked. I had to go buy name brand 9V from the grocery store and those work just fine."
Less Quick
"* I did not read the reviews before purchasing these batteries - and if I had, I would not have purchased them... I tested each water leak sensor and each worked, with these batteries installed. THEN I was going to buy another 8 and saw the reviews. Bummer, I need to check the voltage of each battery so I KNOW the batteries are good... I set off an water sensor and let it run for about 45 seconds, that battery read 9... I can't vouch for how long they will last, but there is no current being pulled from the battery unless the sensor goes off, so I think I'm ok for a few years, but I plan to test every 6 months or so - easy for me to do as I put Velcro on each sensor so I can remove easily from under the sink, the battery pulls right out, and I can test quickly... 50, so not much more than these $10 - so I did buy 8 of those to be used ads backups - but if these Amazon batteries work under load (when the siren goes off) I'll be buying more."
"* I tested the AA size Amazon brand battery to find out the actual usable capacity as compared to the AA Duracell Procell battery... The Amazon battery was actually slightly more expensive when represented in cost per Watt-Hour... You will probably barely notice the difference in capacity, so if you don't want to waste time shopping around then its a good choice... Voltage and current were being logged ounce per minute and this data was used to calculate the Amp-Hour with a 0... Note that the capacity of these batteries can change dramatically under different conditions. The same battery under a heavy load will have a fraction of the capacity that it would under a light load... If you choose to shop around for a name brand battery, stay at or below $0."
