|Large Prismatic type, 20 Ah|
This image above shows the large plastic case style. These cost around $35 each and have an energy density of around 85.33Wh/kg.
|Polymer Type, 20 Ah|
The image above shows the foil packed polymer style cells. These cost around $60 each and have an energy density of around 125 Wh/Kg.
The typical discharge rate is the same for both types, 20 amps, but the peak discharge (<10 seconds) is much higher for the prismatic style (200 amps) vs the polymer style (40 amps).
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