Interesting comparison, for sharing purpose. Anybody did compariosn for those AA recahrgeable batteries?
Alkalines, the new-fangled lithium ones or the stalwart carbon zinc batteries? Find out which will give you long lasting energy in this battery shootout. -ST
Sat, Mar 21, 2009
The Straits Times, Digital Life
by Tan Chong Yaw
Compared to old-technology carbon zinc batteries, alkalines cost about 35 cents more per battery but they pack more power and store longer.
Which will give the most bang for your buck? Alkalines, the new-fangled lithium ones or the stalwart carbon zinc batteries?
DL did a shootout of five types of batteries (See table). These range from amazingly cheap carbon zinc PenesamiG batteries to the Panasonic Evolta - a super alkaline - and Energizer e2 lithium.
In the middle are the ones that line most supermarket shelves - alkalines like the Duracell and Energizer Max.
The batteries were bought from FairPrice supermarkets except the PenesamiGs, which were bought at Sheng Siong Supermarket.
A flashlight and camera were used to test the single-use AA batteries.
The flashlight has one light-emitting diode (LED) bulb and runs on a single AA battery. The time taken from the moment the flashlight was switched on until the light died was recorded.
The test camera was Canon's PowerShot SX1 which uses four AA batteries. With the LCD switched on and flash firing for every shot, the number of shots snapped until the camera shut down on its own was noted.
Clearly at the bottom was the PenesamiG - it could not even power up the camera and lasted a paltry three minutes in the flashlight.
In the camera test, the e2 tied with the Max in being cheapest to run on a cost per photo basis. However, the e2 lasts longer than four Max batteries.
The Max and Duracell, both alkalines, tied for being most economical to run in the flashlight test.
Alkalines are best-sellers because they offer a good performance-cost balance. Alkaline batteries make up about 70 per cent of FairPrice's battery sales, said Tng Ah Yiam, its integrated purchasing director.