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Free minder
Join Date: Nov 2001
Location: Middlessex county, MA
Posts: 9,396
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Charging voltages are based on the cell chemistry and the number of cells put in series.
There are no cells that have a charging voltage of 0.5V, because it would make no sense to build such cell. Single lead acid cells charge at 2.3V, LiPO charges at 3.6V, Li/NCM is 4.2V…nothing charges at 0.5V because you would need 10 cells in series to build a 5V pack, and 24 to build a 12V pack.
Also the lower the voltage, the higher the current must be to reach a certain charging power, but high current causes heat loss, that is why higher voltage systems are always preferred.
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1978 SC Targa, DC15 cams, 9.3:1 cr, backdated heat, sport exhaust https://1978sctarga.car.blog/
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