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Old 08-25-2017, 09:39 PM   #15
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Originally Posted by okolepuka View Post
lifepo4 specs, pt. 2

Countryfit: my inverter was bought by me, not OEM. Its a pure sine 3kw cont. from amazon, one of these:

PowerTech On Advanced Technology PURE SINE WAVE Inverter 3000W Cont/6000W Peak

The onboard OEM charger, I dont know. You don't mean the converter, do you? If you mean a non OEM charger I would install, I dont have one. All the charging now comes from alternator, generator/converter, shore power and later added MPPT solar controller. As far as I know, I don't know of a specific charger unit.

By the way, my setup requires me to physically plug the big shore power plug into a big outlet (powered by gas generator, obviously) in the same compartment in the back, probably common. If not plugged in the generator wont power or charge anything. Thats where I was hoping to plug in the extension cord from the inverter to have boondock house power. Especially if I can find a way to shut off the converter/charger going to the battery while wired this way. At the breaker box perhaps? But again nothing is labled in there, so I need to find WFCO (breaker box maker) model specs and hope they match.

Here are the spec sheets I got from Lithpower:
that i said oem charger is the same as converter.
i am not familiar with your rv, you might want to call the manufacturer or a dealer to find out what kind of converter/inverter was installed from the factory. in my mind, most of the rvs have a charger/inverter combo with ats installed.

i briefly went over the tech docs you attached; the first one shows the bms parameters which is doing the exact same thing as what i described on my previous post. it's just a basic bms plus the li cells.

the second doc appears talking about 3.2v 3.5ah cells, not the one at 3.2v with 150ah in the box i guess. fyi, my cells either from calb or winston, are 3.2v 100ah each. they even have larger ones like 3.2v 200ah or 400ah each. i assume yours should be 3.2v 150ah each.
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2000 Country Coach Intrigue 40' ISC 350
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Old 08-26-2017, 12:42 PM   #16
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mostly 4 cells in series make up a 12v nominal pack.
Steven & Polly
2000 Country Coach Intrigue 40' ISC 350
2014 Ford C-Max Energi
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Old 08-26-2017, 02:30 PM   #17
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Short answer

Short answer is they (LiFePO4) will only take as much current from the alternator that is available and is allowed by the battery's internal battery management controller.

If it detects too high a voltage coming in, or too much current, it will stop the battery from charging.

Now get out and enjoy the fun stuff! =)
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agm, alternator, amperage, amps, batteries, battery, charge, discharge, lifepo4, lithium

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