BSull
Well-known member
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- #1
I ran into a dilemma the other day while doing a number of module updates with FDRS. I was a proponent and user of 2xPL2320s. Since I experienced the issue I'm about to explain, I've bitten the bullet and ordered a PL6100.
I connected the dual 2320s to the jump start connectors under the right-side cover in the frunk, started both and turned on supply mode, connected the mongoose, logged into FDRS and away I went. Followed the process laid out in this forum and updated a number of modules at least one of which updated a number of other modules in a series of automated updates. All this time the LVB voltage shown in FDRS was hanging in the 12.4/7 range when actually programming, and mid 13s when between modules. When I selected CMR, and the process started, voltage dropped like it went off a cliff. First to mid 12s like before then started counting down. It got to 11.7 before the update failed. My fault for not cancelling much earlier I know that.
I do not know why I had this issue this time, the lowest voltage I've seen before using FDRS with the dual 20 amp sources is about 12.4. It seems the 40 amps available with the dual PL2320s is not sufficient in the scenario I've just described. I know a lot of folks are using the dual 20 amp power sources with success and have been for quite some time. I'm just relating an experience I had and asking a couple of questions.
Anyone know what maximum amperage pulled during FDRS programming is? Was it the CMR module that draws more than the others, was it because I had already done a number of modules and the actual battery SOC was getting lower? I just don't know.
I connected the dual 2320s to the jump start connectors under the right-side cover in the frunk, started both and turned on supply mode, connected the mongoose, logged into FDRS and away I went. Followed the process laid out in this forum and updated a number of modules at least one of which updated a number of other modules in a series of automated updates. All this time the LVB voltage shown in FDRS was hanging in the 12.4/7 range when actually programming, and mid 13s when between modules. When I selected CMR, and the process started, voltage dropped like it went off a cliff. First to mid 12s like before then started counting down. It got to 11.7 before the update failed. My fault for not cancelling much earlier I know that.
I do not know why I had this issue this time, the lowest voltage I've seen before using FDRS with the dual 20 amp sources is about 12.4. It seems the 40 amps available with the dual PL2320s is not sufficient in the scenario I've just described. I know a lot of folks are using the dual 20 amp power sources with success and have been for quite some time. I'm just relating an experience I had and asking a couple of questions.
Anyone know what maximum amperage pulled during FDRS programming is? Was it the CMR module that draws more than the others, was it because I had already done a number of modules and the actual battery SOC was getting lower? I just don't know.
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