Voltage drop on inverter
I have a Samlex 3012 inverter charger that is powered by 4 x 100 ah LIFEPo4 batteries. Each of the batteries is wired separately to a bus bar using 00 welding cable, this bus bar feeds another one tha...
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I stole this from a site:
"With a parallel battery bank, one fuse is adequate for protecting the wiring against load overcurrent (between the parallel-connected batteries and the load), but we have other concerns to protect against as well. Batteries have been known to internally short-circuit, due to electrode separator failure, causing a problem, not unlike that where batteries of unequal voltage are connected in parallel: the good batteries will overpower the failed (lower voltage) battery, causing relatively large currents within the batteries’ connecting wires. To guard against this eventuality, we should protect each and every battery against overcurrent with individual battery fuses, in addition to the load fuse..."
"Bunching" is Method 4 in this link, except with 5 batts it would be with 2 and 3.
http://www.smartgauge.co.uk/batt_con.html
I still don't understand why he wants the pos and neg links to the batteries to be equal. I get that all the pos links should be equal to each other and all the neg links be equal to each other. IMO the pos and negs do not need to be equal, since it is a circuit.
"With a parallel battery bank, one fuse is adequate for protecting the wiring against load overcurrent (between the parallel-connected batteries and the load), but we have other concerns to protect against as well. Batteries have been known to internally short-circuit, due to electrode separator failure, causing a problem, not unlike that where batteries of unequal voltage are connected in parallel: the good batteries will overpower the failed (lower voltage) battery, causing relatively large currents within the batteries’ connecting wires. To guard against this eventuality, we should protect each and every battery against overcurrent with individual battery fuses, in addition to the load fuse..."
"Bunching" is Method 4 in this link, except with 5 batts it would be with 2 and 3.
http://www.smartgauge.co.uk/batt_con.html
I still don't understand why he wants the pos and neg links to the batteries to be equal. I get that all the pos links should be equal to each other and all the neg links be equal to each other. IMO the pos and negs do not need to be equal, since it is a circuit.
