12v 14ah lead acid charger/ 24v 7ah lead acid charger

Thread Starter

Daddy k

Joined Jul 16, 2021
1
Good day,pls who can help with a simple circuit of a 12v 14ah lead acid battery charger using a 12v transformers and also a 24v 7ah lead acid battery charger using the same 12v or 15v transformer
 

LowQCab

Joined Nov 6, 2012
1,307
Everything will depend on the Specifications of Your Transformer.
Have You already purchased a new Transformer ?
Are You trying to make a salvaged Transformer work ?

2-basically identical MOTs (Microwave Oven Transformers) are an excellent place to start.
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Dodgydave

Joined Jun 22, 2012
10,085
Most of the old battery chargers used a 15V AC transformer and bridge rectifier, for the 12V batteries, so for 24V you need a 26-28V transformer.
 
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