Home / Charge Controllers / Solar Charge Controllers / MPPT Solar Charge Controllers / Outback Flexmax 80 MPPT Solar Charge Controller / Reviews / Survived Field day test
Milton McFarland

Outback Flexmax 80 MPPT Solar Charge Controller

Written June 29, 2008

Survived Field day test

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

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