Energizer PP355 - Manual (Page 6)

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ENERGIZER BATTERY MANUFACTURING
VERSION 1.2
Figure 4: Comparison of Discharge Curves at 50 mW Continuous
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0 5 10 15 20 25 30 35 40 45
Vo
lt
ag
e
(V
)
Discharge Time (hrs)
Lithium
AAA
Alkaline
AAA
Alkaline
AAAA
Zinc Air
PP355
NiMH
AAA
The impedance of Energizer Zinc Air Prismatic batteries is higher than similar volume Alkaline batteries,
and it decreases slightly through the life of the battery. The impedance should not impact battery
performance at low to moderate discharge rates. At higher rate discharges, this higher impedance will
reduce operating voltage and delivered energy.
1.4 ‐‐ Zinc Air Prismatic Battery Sizes
Energizer Zinc Air Prismatic batteries provide an ideal form factor for devices with a thin profile. The
family of battery sizes is shown in Figure 5, ranging from AAA Alkaline volume equivalent to ½ the AAAA
Alkaline volume equivalent. Energizer Zinc Air Prismatic battery nomenclature is determined by the IEC
standard. The first ‘P’ indicates Zinc Air chemistry, the second ‘P’ indicates the prismatic form factor,
the first two digits represent the diagonal in mm, and the last digit is the battery height in mm. For
example the PP355 has a 35 mm diagonal distance and a height of 5 mm.
Figure 5: Zinc Air Prismatic Battery Sizes
PP425 PP355 PP255
Length (mm) 36.0 32.2 22.6
Width (mm) 22.0 14.7 10.3
Thickness (mm) 5.0 5.0 5.0
Volume (cm
3
) 3.96 2.37 1.16
Cell Weight (g) 11.7 6.8 3.4
Continuous Rate Capability < 200 mW < 100 mW < 50 mW
Capacity Rated (mAh) 3600 1800 720