Camelion BT325 Battery? 

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Cluster Cluster 3
Part Number BP2B2328
Battery Type C
Brand Camelion
Features

Int. Frame size to IEC:R14P
Frame size:C
Dimensions (?? x L mm):25,5 x 50,0
Weight (g): 47,0
Electrochemical System
Zinc manganese dioxide/
Zinc/ammonium chloride
Nominal Capacity:3800mAh to 0,8V
(20?° ?± 2?° C rated capacity at 25mA
continuous drain)
Nominal Voltage:1,5V
Jacket:Metal