charging of 100Ah lead acid battery

[sambkn2bhu]

i need to charge my 12V 100Ah lead acid battery for my inverter... how can i get a constant 10A current for its bulk charging

i m thinkin of using 2 LM338( 5A adjustable regulator) in parallel... will this work ? can battery draw more cuurent , thus overloading the 2 LM338 ??.. pls make some suggestions ..

thanx

 

[IanP]

Instead of connecting voltage regulators in parallel (not a good idea) consider boosting current of a voltage regulator by adding external pass transistors ..
To achieve required current you can add as many pass transistors as you like ..
**broken link removed**

Rgds,
IanP
:|

 

[sambkn2bhu]

thanx Ian...

one more thing i wanna know is that is battery going to inhale the given 15 current or is it going to pull :| more current when it is totally discharged n thus overloading the transistors ??

 

[IanP]

Goto:
**broken link removed**
and take a look at the idea of an external current limiter based on R[L] 0.03Ω power resistor that limits the output current to roughly 20A ..
It even has an LED indicator that omes on when the limiter is "in action" ..

The same concept can be implemented in the previously presented circuit with 3 external pass transistors ..

Rgds,
IanP
:|