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If I assume PV delivery 4500 watts at 85volts that is a current of 52 amps. An estimate of a PV array resistance that would deliver that is 85/52= 1.6 ohms. Since battery packs have low internal R this indicates the battery pack voltage should be on the lower end of what the H6 can accept. With...

some more thoughts:: If I remember correctly , internal source resistance can be estimated by Open circuit voltage divided by short circuit current. Of course short circuit current is a perhaps a dangerous thing to measure manually...Watch out! For my panels its about 40 volts OC, 8 amps...

BTW , i just remembered a arc welding tip for using 12 volt batteries in series to do DC type arc welding ( 36 volt works) . The batteries reach there current limit as set by the welding rod and cable connects to them. The tip was to put a LARGE induct or in series to smooth out the DC welding...

Coinhead/Tinman All; I have had a H6 for about 6months now. I got it to replace a dead aroura inverter on a Solar grid tied application at residence. SO far so good its doing well. But at first it did not. I installed it right where the old inverter was and it worked for a day or so and then a...