Maker Pro
Maker Pro

Charging a lead/acid battery

kidthorazine

Jan 20, 2013
24
Joined
Jan 20, 2013
Messages
24
I want to charge a 12v lead/acid battery using a wallwort. I have various wallworts with different voltages/milamps. I have a bunch of 12v ones with mAs ranging from 500ma to 2.5 amps. I also have a 15v 850ma one and an 18v 1000ma one. What would be best to go with?
 

davenn

Moderator
Sep 5, 2009
14,254
Joined
Sep 5, 2009
Messages
14,254
that would depend on the rating of the battery .... what is it A/hr rating?

Dave
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
Joined
Jan 21, 2010
Messages
25,510
What does it weigh? A lead acid battery's weight is very closely correlated with its capacity.

e.g. a 7Ah SLA battery is around 2.2kg. So you're looking at about 300g per Ah for a 12V battery. (that is confirmed by looking at an 18Ah battery and 38Ah battery.)

Note that it is higher for deep cycle batteries (up to 350g/Ah) but it's still pretty close.
 
Top