Battery Charging

[sjohns4]

1) Can a basic unregulated DC power supply be used for battery charging (lead-acid type)?
2) is there a rule of thumb or formula to size the current output of the power supply to maintain a battery at or near full charge without over-charging?

 

[mikekilroy]

I Absolutely agree.

and it's uncharged[/b], then it may present what is essentially a dead short to any applied voltage source.]

I was distracted by the 'uncharged' subset limiter.


But if I take out the dead battery limiter, then I totally agree; a partially discharged battery can still have a fairly low internal resistance and thus pull more current than an unknown voltage source supply.

 

[ScottyUK]

Desperation is the mother of ingenuity!