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Measurements

Batterya Type Weight
g
Carga
Ohm
No load
V
Loaded
V
R(int)
Ohm
Capacity
mAh

Energizer [1]
Alk 25 10 1.612 1.503 0.73 2.651
Energizer
Alk 25 3.9 1.609 1.384 0.63 2.053
Duracell
Alk 23 3.9 1.616 1.422 0.53 2.007
Duracell [3]
Alk 23 3.9 1.602 1.473 0.34 2.255
Philips
Alk 22 3.9 1.537 1.281 0.780 1.675
Energizer Titanium
Alk 23 3.9 1.560 1.330 0.67 2.231
Kodak
Alk 23 3.9 1.620 1.414 0.57 2.035
Camelion
Alk 22 3.9 1.621 1.403 0.61 1.928
Sony [4]
Alk 22 3.9




Sony
Alk 22 3.9 1.517 1.308 0.62 1.939
Rayovac
Alk 22 3.9 1.590 1.371 0.62 2.047
Maxell Ace
Alk 22 3.9 - - - - Error [2]
Hi-Watt
Alk 22 3.9 1.577 1.371 0.59 1.696
Panasonic
Alk 22 3.9 1.611 1.402 0.58 2.251
Varta Photo
Alk 23 3.9 1.574 1.444 0.35 1.506
EverActive
Alk 23 3.9 1.604 1.445 0.43 2.044
Energizer Lithium
Lit 14 3.9 1.790 1.410 1.05 2.707
Energizer Lithium
Lit 15 3.9 1.768 1.249 1.6 3.01
Energizer Lithium [5]
Lit 15 3.9 1.749 1.260 1.51 2.99
[1] Mind: This test was done with a 10 Ohm load. Capacity always increases when using lighter loads! To compare with the others use the 3.9 Ohm test below.

[2] Maxell battery: Measured 0V at start. Negative connection of battery was loose, can applying pressure showed some voltage, but function could not be restored. No obvious cause of damage could be seen.

[3] Duracell at higher temperature. This plot was done at about 35C, about 10C warmer than the previous plot. Capacity increased about 12%! Battery efficiency is very dependent on temperature.

[4] SONY Walkman. During the first test, electric power broke down long enough to loose all data. On the second try, the battery showed definite signs of having been used before. Maybe, if I have the time, I'll repeat the test.

[5] Energizer Lithium. Added 2007/05/22. Measured with the battery inside the refrigerator's freezer compartment (approx -7 C).


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