I would like to design a battery charge manager for 10 NiCd cells in series, because I need a 12 Volts source (10x1.2V). However, I not found a BQ2000 series device wich meets my needs. If you could please suggest some components, or combinations of multiple components that would halp me achieve this it would be greatly appreciated.
Please go to http://batteryuniversity.com/ and read about charging batteries.
Even though the battery's nominal voltage is 1.2V it takes ~1.6V minimum to charge fully (we use 1.6 to 1.8V) and then 2 volts overhead to run the converter so 10 cells would reguire ~17V +2V = 19V input. Our chargers are step down converters so a 12V adaptor would charge 6 cells in series.
unless there is some restriction, one should use Li-Ion cells which are 4.2V/cell.
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