Hello everyone,
I am using a 370W solar panel and a Epever 3210N solar charge controller charging a 12V 70Ah AGM battery. The system runs perfectly fine, but I recently noticed the following problem:
When the battery is fully charged and I connect a load of for example 100W, the charge controller immediately starts supplying that power from solar, so that the battery stays fully charged. If I then disconnect the load, the battery voltage spikes to ~15-16V for a very short period of ~1-2s.
Because the over voltage disconnect is set to 14.6V, the charge controller immediately caps off solar from the battery. But it seems to me, that the charge controller is not able to react fast enough to prevent that battery voltage spike, because I can still see it in statistics.
How problematic is this voltage spike for an AGM battery? Can it take it, because it is only for ~1-2s or will it decrease its lifespan dramatically? I am thinking of getting a new and bigger capacity battery, but first want to clear this problem.
Is there a solution to prevent this battery voltage spike?
I am using a 370W solar panel and a Epever 3210N solar charge controller charging a 12V 70Ah AGM battery. The system runs perfectly fine, but I recently noticed the following problem:
When the battery is fully charged and I connect a load of for example 100W, the charge controller immediately starts supplying that power from solar, so that the battery stays fully charged. If I then disconnect the load, the battery voltage spikes to ~15-16V for a very short period of ~1-2s.
Because the over voltage disconnect is set to 14.6V, the charge controller immediately caps off solar from the battery. But it seems to me, that the charge controller is not able to react fast enough to prevent that battery voltage spike, because I can still see it in statistics.
How problematic is this voltage spike for an AGM battery? Can it take it, because it is only for ~1-2s or will it decrease its lifespan dramatically? I am thinking of getting a new and bigger capacity battery, but first want to clear this problem.
Is there a solution to prevent this battery voltage spike?