I took some Battery data from the net.
CALB SE180AHA
Weight: 5,6kg Size: 275x182x71mm = 3.553.550mm3 / 180AHA = 19,7cm3 /1AHA
Winston LYP160AHA
Weight: 5,6kg Size: 276x209x65mm = 3.749.460mm3 / 160AHA = 23,4cm3 /1AHA
Sinopoly SP-LFP180
Weight: 5,6kg Size: 279,5x182x71mm = 3.611.699mm3 / 180AHA = 20cm3 /1AHA
Sinopoly SP-LFP200
Weight: 5,6kg Size: 279,5x182x71mm = 3.611.699mm3 / 200AHA = 18cm3 /1AHA