Can I Charge Car Battery While Still Connected. What Id like to do is just connect up my charger 16V-18V dirty DC open circuit to the battery while its still connected to everything. Smart battery chargers are the.
Ive tried both methods of connecting directly to the battery and also connecting to a good earth and found no discernible difference in charging or power levels later on so Im on the fence but I dont think itll make a major difference either way. Begingroup A real-world example of a charging source delivering less current than the load sometimes requires. Only Use a Smart Charger if the Battery is Connected.
The most preferred way is by using an advanced microprocessor-controller charge.
You should not have a problem as long as you charge at a low rate and do not turn on the key while charger is on. It is the surface charge. Connect a 12V load like headlight bulb and and after 5 minutes measure the voltage again. Despite the charging of the car battery while connected resulting in serious damages such as electric shock there are safe steps to charge the battery while it is still connected.
