Mabs 150v 45a mppt build


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mab1
Senior Member

Joined: 10/02/2015
Location: United Kingdom
Posts: 176
Posted: 01:41pm 06 Jun 2023      

Thanks for the optimism Poida, but i've just rechecked and i have got 4.94v on the +pin, 0v on the o pin and just mV on the out pins of all of them ( including the 3rd one from the aerosharp). No shorts between the pins. Two of the three are the LTSR type but I've left the ref pin floating (i think it should float at 2.5v?)

I don't know how I've killed them if not heat - I've never been a static-y person and usually unsolder things fine, but they do seem dead.

Just considering buying cheap from China - they'll take longer to get here but it definitely saves money.