Used field day with two Kyocera KC130TM panels and RFI+EMI filtering and fuses installed in two discconect boxes on intermittant sunny day with some hard rain.
I used a small battery around 100 amp hours to see if i had enough panels to run a 100 watt Hf radio with around 50% transmit time to watch the voltage drop over day time conditions. (field day was 2 PM to 2PM the next day)
I installed the system in tent friday night and it was easy useing manual to start it up sat morning it started up with a few watts(it was cloudy) and built up to about 40 to 120 watts and once I saw 15 amps before transmitting the batt was about fully charged so it dropped 3-6 amps During transmitt rose to 9-12 amps and dropped back again on recieving, so system Did keep up with the radio all day and I ran the battey down to 12V after dark and connected to charge other batties for other ham radio operaters to use we where 4e and sunday morning, I did see over 17amps and 260 watts output under sunny conditions at times still intermittant weather and rain.
So I guess the moral of the story is You will not see full output if the batt voltage is high or the battery draw is low!
I can highly recommend this charger and did see 2 1/2 to 3 times the panel amps on the out put to batteries