Question

Whatshould be the charging voltage and current for 4 volt 1.5 ah lead acid battery

Answer 1

12.6 volts

Fully charged automotive batteries should measure at 12.6 volts or above. When the engine is running, this measurement should be 13.7 to 14.7 volts. If you don't have a multimeter to tell you the voltage of your battery, you can do a test of your electrical system by starting the car and turning on the headlights.

Answer 2

Hii

you are welcome in my ans

12.6 volt read by voltmeter .

____/\___☺️

Hope it may helps you