Maker Pro
Maker Pro

Lead Acid battery charger

  • Thread starter Miguel A. Borges Silva
  • Start date
M

Miguel A. Borges Silva

Jan 1, 1970
0
Hello all,
I'm searching for a company that sells Lead Acid battery chargers but so
far my search as been a flaw. This is why i'm turning to this newsgroup.
My problem is that i have a small Lead acid battery (intended to work as
a backup - 12v) that must be charged for a bigger battery (a 24v truck
battery). It would be nice if it had a "charge/don't charge" input. As
far as i know there are lots of chargers to use with 220/120v ac, but
i've found none for DC.

Any hints would be apreciated. Thanks in advance.

With best regards,
Miguel.
 
F

Fritz Schlunder

Jan 1, 1970
0
Miguel A. Borges Silva said:
Hello all,
I'm searching for a company that sells Lead Acid battery chargers but so
far my search as been a flaw. This is why i'm turning to this newsgroup.
My problem is that i have a small Lead acid battery (intended to work as
a backup - 12v) that must be charged for a bigger battery (a 24v truck
battery). It would be nice if it had a "charge/don't charge" input. As
far as i know there are lots of chargers to use with 220/120v ac, but
i've found none for DC.

Any hints would be apreciated. Thanks in advance.

With best regards,
Miguel.


Well I don't know exactly what size of battery you are charging, but perhaps
something as simple as a PB137 might be sufficient:

http://www.st.com/stonline/books/pdf/docs/6278.pdf

Mouser sells them in single unit quantities for $0.50. Looks like a very
simple device. Should be a piece of cake to use (or else a good learning
experience and nearly first project for any newbie).

I'm not sure quite what you mean by a charge/don't charge input but perhaps
a simple mechanical switch or else a MOSFET could be used to turn off the
charging so it doesn't drain the 24V battery even when the 12V device is
full, though with an Iq of around 4mA I should imagine it would probably
take quite some time before it caused problems. Other parasitic loads might
be more of a concern.
 
M

Mark Twombley

Jan 1, 1970
0
Miguel A. Borges Silva said:
Hello all,
I'm searching for a company that sells Lead Acid battery chargers but so
far my search as been a flaw. This is why i'm turning to this newsgroup.
My problem is that i have a small Lead acid battery (intended to work as
a backup - 12v) that must be charged for a bigger battery (a 24v truck
battery). It would be nice if it had a "charge/don't charge" input. As
far as i know there are lots of chargers to use with 220/120v ac, but
i've found none for DC.

Any hints would be apreciated. Thanks in advance.

With best regards,
Miguel.

I did a google and found this
http://www.uoguelph.ca/~antoon/gadgets/labc.htm looks like it might just be
the thing your looking for.
 

PAC8911

Jan 27, 2011
1
Joined
Jan 27, 2011
Messages
1
I know this is very old but maybe others arrives here with the same question. I have the same problem and you can find this kind of chargers on

sorry i can't put links so to bad, but the company is
MASCOT and POWERSTREAM maybe with thats more thant enouph for you can take a look.
 
Top