Energizer MAX 9V Batteries
Electrical characteristics good, BUT does not work in some devices... no electrical contact! EXAMPLE: PrincetonTec tec40 flashlight (made in USA). REASON: Unlike most AA cells, the "negative" end of the cell is slightly recessed in the casing instead of slightly protruding. Therefore contact is not made with a device that has a flat bus linking cells in line. A bit of Aluminum foil to beef up the bus was a work-around, but unreliable as this is used as an emergency &/or underwater (SCUBA) light source.
April 26, 2013
Short life span
Two new batteries which were used for freeway smart tag can last only 1 week. The battery is only discharge when it passed by the scanner at the tol plaza. This is very surprising as this is not the usual life span.
April 18, 2013
9v battery was installed in smoke detector at first of month, 6 days later, battery was bad (measured just over 8 volts) date on battery is 03-2015. it was the first battery removed from package of 4
December 11, 2012
Bad battery in package
AA battery in the package with a damaged side wall.
November 30, 2012
As good as it claims
this product does as it is advertised. longevity is good.
November 29, 2012
9 volt batteries are expensive, buy them on sale
Great value for our fire alarms, change them only once a year
November 5, 2012
proven itself time and time again
Used this product in a critical time. During a major tornado in our area on April 27, 2011 we used the 9v in our scanner in the closet. We had no radi just the scanner. No cell internet either. The scanner enabled us to know where the path of the storm came from and was headed. Thank you for knowing I could depend on this product for my families dafety!
June 13, 2012
Most trusted battery
I will only buy Energizer batteries for my smoke detectors. I do not think I have ever bought the Max , but if they are as trustworthy as regular Energizer I am going to try them next time I get to the store, Nothing you need to depend on more than you and your family and pets safety, so I depend on energizer batteries.
June 10, 2012