How to recharge a 12V battery using an Alternator

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Discussion Overview

The discussion revolves around methods to recharge a 12V battery using an alternator while the battery is in use. Participants explore the feasibility of this approach and consider alternative solutions, such as using a capacitor or a gas generator, in the context of a rural project requiring continuous power supply.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks guidance on connecting an alternator to recharge a 12V battery while in use, drawing parallels to how car batteries are recharged.
  • Another participant suggests that a gas generator may be more suitable for the project than relying solely on a 12V battery.
  • A different participant reiterates the initial query about connecting an alternator and provides a basic wiring suggestion, indicating the need for a picture for clarity.
  • One participant questions the source of motive power for the alternator, the size of the battery, and emphasizes the importance of matching power supply with demand, likening electricity management to financial management.

Areas of Agreement / Disagreement

Participants express differing views on the best approach to meet the power needs of the project, with no consensus on whether an alternator or a gas generator is preferable. The discussion remains unresolved regarding the optimal method for recharging the battery.

Contextual Notes

Participants have not provided specific details about the power requirements or the characteristics of the battery and alternator, which may influence the effectiveness of the proposed solutions.

Oladapo Babatunde
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I am working on a rural project that requires continuous use of 12v battery as a single unit,to keep the project running i need to recharge the battery . How do i connect an alternator to recharge the battery while the batteries is in use. or can i use a Capacitor instead.
My thinking is since car battery are recharged in Car by alternator. or do anyone has a method to recharge 12v batteries
 
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Oladapo Babatunde said:
I am working on a rural project that requires continuous use of 12v battery as a single unit,to keep the project running i need to recharge the battery . How do i connect an alternator to recharge the battery while the batteries is in use. or can i use a Capacitor instead.
My thinking is since car battery are recharged in Car by alternator. or do anyone has a method to recharge 12v batteries
Alternator body to battery negative.
Big B+ terminal to battery positive.
W terminal via 12V bulb to battery positive.

A picture of the alt would help.
 
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What is the source of motive power for your alternator?
How big is the battery?
Most important, what is the requirement for the supply you are providing? Electricity is like money; you need an income that's at least as big as your spending and you need a float of spare cash for a rainy day. Engineering is a very unforgiving business so you have to do the sums - really!
 
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Likes   Reactions: anorlunda and davenn

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