Pentax K-m: AA batteries

The Pentax K-m uses four AA batteries like the Pentax *ist Ds.

First, I tried to insert rechargeable AA batteries (very old Turnigy LSD 2200, which I bought in 2012). The camera showed no signs of life.

I was discouraged, but then I remembered that the K-m is very demanding on battery voltage. When I put in fresh, good alkaline AA batteries, the camera turned on.

Of course, I don't want to shoot with alkaline AA batteries (it's too expensive). Fortunately, I have some 14500 LiFePO4 (3.2V IFR) batteries.

I put two batteries and two dummy "connectors" in the camera. This provides enough power to turn the camera on.

Since then I only use these LiFePO4 batteries in the Pentax K-m. They are quite good even in cold weather (down to -20°C). And this camera is the only device where I use these LiFePO4 batteries in now.

See also related notes:

• Pentax K-m: 10MP CCD DSLR (2023-12-23)
• Элементы питания AA/AAA и фототехника (2022-07-29)
• Аккумуляторы 14500 LiFePO4 (3.2В IFR): через два с половиной года (2020-11-05)
• Аккумуляторы AA, AAA (2020) (2020-10-27)
• Аккумуляторы типоразмера AA (2012-07-08)

Image albums:

• Pentax K-m