The charger voltage is measured to determine the type of charger used. MCU A/D converter channel 1 is used for this purpose and MCU /D converter channel 1. The input circuitry to the charger measurement A/D channel implements an LP filter. The input voltage must be scaled before it is fed to the A/D converter input. Due to the high input voltage range scaling is performed outside PSCLD, N300. The scaling factor required is 22/(22+100) = 0.18. The charger voltage measurement switch is integrated into PSCLD, N300. Charger voltage is not supplied to the A/D converter input in power off mode. This is done to protect the A/D converter input in case power is switched off and the charger remains connected to the baseband. The resistor values are different since the scaling factor is larger.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.