11-19-2025, 05:27 AM
Hank you say you have 2 inverters, have you read output voltage between each other? Could be you have split phase.
OK here is my stance on Lithium and alternators.
I know of a few lithium conversions that utilize the 50DN 270 amp alternator and as of now no one has had a problem with charging the batteries and destroying the alternator but also these folks have knowledge of electricity and mechanics so if a lithium bank were to be discharged to 0 potential they would find another source to bring them back to life slowly by current limiting. I build my own batteries and install BMS's that are programmable so this is a safety feature I use. On the BMS's I use you can limit the amount of charge current or discharge current. Example: If you have your charge current limited to 75 amps and your battery is discharged deeply and requires more than 75 amps it will turn off the charge current then wait for a set time you decide and and turn back on for a programmed amount of time then back off and so on and off which is charging the batteries as a pulsed type of current protecting the alternator from a consistent huge current draw.
I have a story for you. Our battery is 1200AH @ 24vdc Lifepo4 using 48 cells in series and parallel using 3 150A JK BMS's. On our trip here we stayed a LOVES RV spot in Hattiesburg MS this was the first time for us staying at a LOVES and when you pull into your spot you check in online and plug in hook up sewer water so on. We plugged in and never paid attention to anything so we ran the air conditioner till dark and during the night switched over to heat pump, got up the next morning made coffee, used the microwave, watched TV just as normal as you can expect then I happen to look at the victron panel and seen there was no grid and hasn't been since we arrived the day before the automatic transfer switch that when you check in didn't turn on. Our batteries were at 65% so all is well and I got a refund on the site (thank you Loves) so when I fired off the engine I looked at the BMS's and two of them was drawing 35-38 amps each but the third had went into over current at the programmed 40 amp over charge I had programmed and it did the on off thing for a few minutes then it went consistent charge. The 50DN will put out over 120 amps at idle!
If you buy a factory built battery and the BMS is built in then you have no way to program this but if you feel uneasy about it just put a resettable in line breaker to the current level your comfortable with, 150 amp is a good value.
OK here is my stance on Lithium and alternators.
I know of a few lithium conversions that utilize the 50DN 270 amp alternator and as of now no one has had a problem with charging the batteries and destroying the alternator but also these folks have knowledge of electricity and mechanics so if a lithium bank were to be discharged to 0 potential they would find another source to bring them back to life slowly by current limiting. I build my own batteries and install BMS's that are programmable so this is a safety feature I use. On the BMS's I use you can limit the amount of charge current or discharge current. Example: If you have your charge current limited to 75 amps and your battery is discharged deeply and requires more than 75 amps it will turn off the charge current then wait for a set time you decide and and turn back on for a programmed amount of time then back off and so on and off which is charging the batteries as a pulsed type of current protecting the alternator from a consistent huge current draw.
I have a story for you. Our battery is 1200AH @ 24vdc Lifepo4 using 48 cells in series and parallel using 3 150A JK BMS's. On our trip here we stayed a LOVES RV spot in Hattiesburg MS this was the first time for us staying at a LOVES and when you pull into your spot you check in online and plug in hook up sewer water so on. We plugged in and never paid attention to anything so we ran the air conditioner till dark and during the night switched over to heat pump, got up the next morning made coffee, used the microwave, watched TV just as normal as you can expect then I happen to look at the victron panel and seen there was no grid and hasn't been since we arrived the day before the automatic transfer switch that when you check in didn't turn on. Our batteries were at 65% so all is well and I got a refund on the site (thank you Loves) so when I fired off the engine I looked at the BMS's and two of them was drawing 35-38 amps each but the third had went into over current at the programmed 40 amp over charge I had programmed and it did the on off thing for a few minutes then it went consistent charge. The 50DN will put out over 120 amps at idle!
If you buy a factory built battery and the BMS is built in then you have no way to program this but if you feel uneasy about it just put a resettable in line breaker to the current level your comfortable with, 150 amp is a good value.
1999 45' #504 "Magnolia"
Gravette, Arkansas
1996 40 XL Prevost Marathon