Jim Macklin wrote:

Most small solar panels have low amperage and will not over
charge a wet cell battery. If they were used to directly
charge a dry cell battery, such as a C or D cell they might
over charge, but a wet cell battery with an AHr rating of 25
amps can be charged indefinitely at a rate of 2-3 amps and
you will be using the battery to run an inverter to power
various other loads.

Your understanding of electricity is only exceeded by your understanding
of stall dynamics. It would take in increasing voltage to maintain 2
amps into a wet cell battery as it becomes charged. If you maintain
that rate for more than 12-13 hours, you will soon ruin the battery.
The good news is that most chargers (and certainly a PV cell) maintain a
roughly constant voltage so that the amperage tapers off as the battery
approaches full charge.


Matt