I built a basic SLA charger circuit using a laptop charger and a buck module that has an adjustable maximum voltage and current. I also added a diode so the circuit can just be left attached to the battery when it isn't charging. I detached the battery (diode still attached) to set the maximum voltage and current and set them to 14.5 volts and 0.2 amps respectively. When I attached the charger to the battery and tested it it worked fine until it stopped at 14.2 volts. I left it on for a while to be sure it wasn't actually still charging and the voltage didn't increase any more. I detached it and increased the voltage (without the battery) to 14.8 volts. When I reattached it and tested it again, the battery charged to 14.5 volts and then stopped. Is this ok, or should I set the voltage without the battery to 14.5 volts? I will add a link to the module if I can find it. Thanks in advance for help. I included a basic diagram of the circuit as it is now.
Edit: Here is the buck module
https://www.aliexpress.com/item/325...f9-1550466771573-09540-ctuNxGq4&terminal_id=c
Edit: Here is the buck module
https://www.aliexpress.com/item/325...f9-1550466771573-09540-ctuNxGq4&terminal_id=c
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