Recently I found that the larger the battery, the higher the energy cost.
FL12’s 50Wh costs 49 USD, FL13’s 55Wh $59 before discount, 61Wh $69, and FL16’s 85Wh $99 . They are 1.02 0.932, 0.884, 0.859Wh/$.
Shouldn’t the more your purchase the cheaper they get (higher Wh/$)?
Higher power density requires more expensive chemistry. The Framework 16 battery is probably produced in much lower numbers compared to the Framework 13 and thus more expensive. It’s maybe also more expensive to package and ship due to its size.
The Framework 12 battery is probably very cost optimized.
For energy density measurements we need to know the weight, but I can’t find them on the product description. Any help?
FL12’s battery has the highest voltage, 3.89V nominal and 4.48V charging per cell. Probably the energy density of this one is also higher