completed projects on battery chargers


Joined Jul 17, 2007
We don't know what kind of battery you are intending on charging.

If it is a sealed lead-acid (SLA) or Valve Regulated Lead Acid (VRLA) battery, here is a completed project for a switching-type charger/maintainer:

If it is an auto battery, here is a very old completed project:
The opamps and some parts may not be available, but you can substitute more modern components.

If it is a different type of battery that you want to charge/maintain, you need to tell us.