Ronmar
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Ok, so what problem are you still having and on what truck are you having it?
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And that was on an A0/3116 right?Nothing at the moment until I get the starter back and installed.
Cat specced a pair of group 31 batteries for the equipment that uses these engines. Thats about 100AH of battery and is usually paired with a 50-75A@24v alt. There are literally millions of vehicles motoring down the highway with a similar configuration… A 75A@24(~28v) alt Is good for ~2100Watts of power. Our 60@12/40@24, split voltage alt is only good for ~1960W of output with both sides loaded to their 60/40 limits. Ironically a 100A@24v(28v) alt is good for 2800W. If they used a 24-12 converter to feed the 12v loads(<15A@24v), a 100A@24v alt would have been adequate to feed the ~60A peak demand of a discharged 240AH wet cell and still feed the the other 24v and 12v(via converter) loads without exceeding its 100A limit… Charging batteries in parallel can also be problematic. whoever cooked up this split alt and quad series/parallel battery power system, did not fully understand how batteries and alts must interact… The tech bulletin General posted makes perfect sense and is long overdue Sinice the military looks to have shifted to AGM batts quite a while ago. AGM batteries want 45% of their AH rating from the alt during the bulk phase of charging. Thats 108A all by itself for the 240AH OEM battery config.Hmm interesting, came with a 4x group 24 flooded lead acid setup
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