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  1. #21
    Long Hauler huntindog's Avatar
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    Quote Originally Posted by barr0208 View Post
    ok so that model would charge 2 -100 amp lithiums without a problem
    It would work great with 2.
    2021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
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  2. #22
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    I know I'm late to the party but here's what I did.

    I moved my 3 lithium batteries inside to conditioned space and upgraded to a 75A charger. That shortened the charger power lines and let me replace them and the main breaker. The OEM 55A on #6 was just wasting power heating those wires. Now everything is up to at least 100A, the size of the main breaker.

    Check your Wfco manual, most have a 20A outlet, but even a 15 will power a huge charger. While the charger mentioned comes with a 20A plug it actually draws 1300w or under 12A.
    Rick

    2019 Reflection 150 273MK
    2015 Ford F350 CC SB Lariat Powerstroke
    PullRite Superglide

  3. #23
    Left The Driveway
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    Very helpful thread, thanks all!
    295RL & 2X4 F250 XL Ext Cab LB w/3880 CCC

  4. #24
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    Quote Originally Posted by herman2021 View Post
    I will be upgrading the charger/converter in my 2020 Reflection 303RLS to support Lithium batteries. The Progressive Dynamics 9160ALV seems to be popular on this forum. Has anyone considered the 9180ALV? It will charge at 80 amps instead of 60 amps so it will charge faster. It requires a 20-amp AC outlet though. My RV is in storage so I can't check to see if the AC outlet the stock WFCO charger uses is 20-amp (I'm curious if any of the outlets in the storage compartments are 20-amp as well). Does anyone know? Also, I am hoping the existing battery wiring from the charger to the front-compartment will be OK for the extra boost in current, the existing breakers are adequate, etc. It would sure be nice to charge quicker, especially when using a generator. Any downsides to going with the 9180ALV instead of the 9160ALV?

    Jeff
    Look at where the converter is plugged into. If it is like my unit, it is plugged into rear receptacle of the the WF-8930/50 Distribution panel. I currently have a 15 amp breaker for the converter but the wire size and 8" run would certainly support upsizing it to a 20 amp. That is a $5.00 breaker and 15 minutes of work.
    Bill & Marsha
    2020 Reflection 320 MKS
    2018 2500HD Silverado 4x4
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  5. #25
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    Constant current or constant voltage?

    Quote Originally Posted by wjpatter View Post
    Look at where the converter is plugged into. If it is like my unit, it is plugged into rear receptacle of the the WF-8930/50 Distribution panel. I currently have a 15 amp breaker for the converter but the wire size and 8" run would certainly support upsizing it to a 20 amp. That is a $5.00 breaker and 15 minutes of work.
    I have the exact setup as you do with my 337RLS. 20Amp outlet 15Amp breaker in the WF-8930/50 and I also have the WF-9855.
    I have just installed a 206Ah LiFePO4 battery as well as a Victron SmartShunt. I have noticed that the WF-9855 has never put out a full 55Amp charge to the battery. I don’t ever remember seeing it get past 12 or 15 amps. This does not work for me when I’m trying to charge my battery using a generator.

    My question is, when you upgraded to your new charge controller that is designed for lithium batteries, are you getting a higher amperage output now or does the controller only put out 14.4v and a fluctuating amperage output?

    I have an AC/DC wall charger that has a CC/CV profile that outputs a full 20Amps Constant Current until the battery reaches 14.6 volts then it switches to Constant Voltage and you can watch the Amps drop until it reaches about 2 Amps of output and then it switches off. Is this how your new charge controller works or does the Amp output fluctuate?

    I am looking at the WF-9855LiS module that clams to have a 50Amp output but I’m wondering if that is a Constant current or constant voltage profile.
    Last edited by Gainestr; 07-16-2021 at 06:56 PM. Reason: Spelling

  6. #26
    Site Sponsor orbiker's Avatar
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    Quote Originally Posted by Gainestr View Post
    I have the exact setup as you do with my 337RLS. 20Amp outlet 15Amp breaker in the WF-8930/50 and I also have the WF-9855.
    I have just installed a 206Ah LiFePO4 battery as well as a Victron SmartShunt. I have noticed that the WF-9855 has never put out a full 55Amp charge to the battery. I don’t ever remember seeing it get past 12 or 15 amps. This does not work for me when I’m trying to charge my battery using a generator.

    My question is, when you upgraded to your new charge controller that is designed for lithium batteries, are you getting a higher amperage output now or does the controller only put out 14.4v and a fluctuating amperage output?

    I have an AC/DC wall charger that has a CC/CV profile that outputs a full 20Amps Constant Current until the battery reaches 14.6 volts then it switches to Constant Voltage and you can watch the Amps drop until it reaches about 2 Amps of output and then it switches off. Is this how your new charge controller works or does the Amp output fluctuate?

    I am looking at the WF-9855LiS module that clams to have a 50Amp output but IÂ’m wondering if that is a Constant current or constant voltage profile.
    This chart will help pick the correct size converter.
    https://www.progressivedyn.com/wp-co...ver-list-1.pdf
    Backpacker and tent camper all my life, including BSA as a kid and adult.
    Motorcycle trips across the USA with a tent - 1978 to Present.
    02-10-2005 - 2002 F350 SWD PSD and 2003 Citation 10'8S mostly for Crater Lake Ski Patrol.
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    10-19-2018 - traded truck for a 2016 Ram 3500 DRW Laramie CC 4 X 4 Long Box.
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    FULL TIME RV'er Nov 2021

  7. #27
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    Quote Originally Posted by orbiker View Post
    This chart will help pick the correct size converter.
    https://www.progressivedyn.com/wp-co...ver-list-1.pdf
    Thanks for that info. It will help in determining which one to buy. I’d still like to know if you are getting a constant current Amp output? What does your battery monitor show?

  8. #28
    Site Sponsor orbiker's Avatar
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    Quote Originally Posted by Gainestr View Post
    Thanks for that info. It will help in determining which one to buy. I’d still like to know if you are getting a constant current Amp output? What does your battery monitor show?
    I believe it is a bit less then 20a AC. It goes down a little when it gets closer to full. I like that it's less then 20, because I only have a Honda 2000 for backup power.

    My small solar array keeps the 400ah of lithium charged most of the time so the converter is turned off. KEN

    I have the 60a Progressive Dynamics converter. KEN
    Backpacker and tent camper all my life, including BSA as a kid and adult.
    Motorcycle trips across the USA with a tent - 1978 to Present.
    02-10-2005 - 2002 F350 SWD PSD and 2003 Citation 10'8S mostly for Crater Lake Ski Patrol.
    10-29-2015 - 2016 Grand Design 380TH. It's HUGE compared to a camper.
    10-19-2018 - traded truck for a 2016 Ram 3500 DRW Laramie CC 4 X 4 Long Box.
    03-16-2019 - Traded Momentum for a New 2018 374TH-R Solitude
    FULL TIME RV'er Nov 2021

  9. #29
    Big Traveler gbkims's Avatar
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    I saw ~12 Amps on 120V while the PD9170ALV was charging up 2 100Ah battleborn.
    The amps remained high till batteries got charged and the BMS stopped the charging.
    Initial charge of the batteries took ~1-3/4 hours to reach 14.6V
    Click image for larger version. 

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    Close to full charge
    Click image for larger version. 

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    - Gene

    Kim & Gene
    2015 Reflection 317RST
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  10. #30
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    So, you have a 70Amp Converter/charger that puts out 12Amps? Is this normal? Exactly how are these manufacturers rating their products? I feel like I’m missing something here. EDIT: I can see that your getting 61Amps of DC power. That’s more like I expected to see.

    I thought that I could charge my battery using my 55Amp Lead Acid converter to the 13.65 volt output that it claims to have and then I could top off once a month or so using my small 20Amp LiFePO4 charger. I’ve discovered that my small LiFePO4 charger has more output (20 Amps) than the WFCO controller has (around 12 - 15 at most). And I’m not a fan at all of the way Progressive Dynamics chargers work with a constant 14.6 volt charge with no shut off. Even if I disconnect the Progressive Dynamics charger from the battery it is still providing an over voltage of 14.6v to my DC lights and appliances (it should drop to 13.6-13.8V) That can’t be good long term at all.
    I need a controller that I can manually switch from bulk charge of 14.6V down to a float charge of 13.6V or one that will do it manually but I also want a constant Amp output of between 40 and 50 Amps while charging.
    I guess I need to look at a solar option for charging and remove the controller/charger from the LiFePO4 battery all together. But that still won’t help me when I want to quickly charge my battery using a generator.
    Last edited by Gainestr; 07-16-2021 at 07:58 PM.

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