12 Volt Battery charger , and also can Accu Charger

This 12 Volt Battery charger circuit best performance to charger 12 volt battery . Why this charger is best performance because this 12 Volt Battery charger quickly to recharger battery and shuts off at full charge. Initially , charging current is limited 2 A , but you can change for the transistor. As the battery voltage rises , current  to the battery decreases , and when the current has decreases to 150 mA or 0.15 A  this 12 Volt Battery charger switches  to a lower float voltage , which prevents overcharge.

See this 12 volt battery charger schematic below :



12 Volt Battery charger
12 Volt Battery charger Click to view Enlarge
The 12 Volt Battery charger can be charger wet  accu and dry accu , and to be make the accu old last longer. The output charger goes to 14.5 Volt. As the battery or accu approaches full charge , the charging current decreases and the output voltage is reduced from 14.5 Volt to about 12.5 volt, terminating the charging.

Comments

  1. Another factor that is important in sizing the 12 volt car battery performance is the CCA ( cold cranking amps )
    ratings that measures the amps if they exceed or meet the at 0 degrees F and can sustain for 30 seconds
    while having a voltage higher than 7.2 depending on the condition of the climate of the place.

    ReplyDelete
  2. Hi,
    Thank you for sharing this knowledge. Can you please help me with an information? I need a 12 volt battery charger with 12-14 amps capacity. from the schematic above, what are the components I need to change to achieve this? and what exact specs of the components?

    Many Thanks.

    Chris

    ReplyDelete

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