Author Question: If the charging current to a battery is 10 A during the bulk stage, approximately how much current ... (Read 14 times)

RODY.ELKHALIL · **on:** Jul 26, 2018

If the charging current to a battery is 10 A during the bulk stage, approximately how much current is there at the end of the absorption stage?

What will be an ideal response?

Question 2

What is the difference between a basic trickle charger and an on/off switched charger?

What will be an ideal response?

brittrenee · **Reply #1 on:** Jul 26, 2018

Answer to Question 1

The current at the end of the absorption stage is set to a few percent of IMAX. Because IMAX is 10 A, the current is typically between 0.1 A to 0.2 A.

Answer to Question 2

The on/switch charger is essentially a trickle charger with an automatic on/off switch. Instead of a continuous charge as with the trickle charger, the on/off charger senses when the battery voltage reaches a preset reference level (VREF1) corresponding to full charge or float charge and shuts off the current to the battery.
When the battery discharges down to a second preset level (VREF2), it turns the current to the battery back on.