Originally Posted by phann
At some point in the near future I will upgrade the stock converter to a three stage model. Meanwhile, I know my current converter delivers about 13.7 volts to the batteries while on shore power, but how many amps are being delivered? Im hoping to estimate how many hours I can safely leave the battery disconnect in the "Use" position while on shore power, based on the batteries current state of discharge. Also, do the amps delivered to the battery via the converte differ according to what the shore power connection Im using (i.e.. 30, 50, 20)?
Thanks for any info in advance.
Converters are best understood as a constant-voltage supply. They will deliver a smaller and smaller current to the battery as the battery charges. Overcharging is typically not a problem except in hot weather, and even then the batteries will be fine if kept watered. The real advantage of 3-stage converters is that they charge the battery more quickly. With new but fully discharged batteries the charging current may reach 30 or 40 amps but willl taper off to around 1-2 amps over a 48 hour period.