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04-04-2022, 08:42 PM
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#41
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Junior Member
Join Date: Sep 2021
Location: Corvallis, Oregon
Trailer: 2013 Escape 19; TV- 2021 Ford F150 Hybrid
Posts: 16
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Yes. When the cover of the unit is removed, the green printed circuit board on the upper right quadrant is the 12v circuitry, w/ fuses etc. The negative terminals are the silver square items at the top left corner.
The switch, if present, is along the left edge of the circuit board, about 1/3 way down from the top.
My friend's is a 2022, and has no switch, but was ordered as "lithium ready".
__________________
"I hope something good happens to you today"
DVP - Oregon USA
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04-04-2022, 08:44 PM
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#42
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Senior Member
Join Date: Mar 2016
Location: Burlington Twp., New Jersey
Trailer: 2010 Escape 19
Posts: 7,146
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Quote:
Originally Posted by Crazypill
Would that be on the left side of the 12v circuit board?
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Yes, that is where it would be if it is not the model with auto-detection.
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04-04-2022, 08:52 PM
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#43
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Site Team
Join Date: Dec 2017
Location: Mid Left Coast, California
Trailer: 2014 Escape 21
Posts: 5,152
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anything over around 13.7V or so with zero amps going into the batt, and a lithium battery is 99.9% fully charged 14.2-14.4V is the normal voltage limit for a LFP charger.
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04-04-2022, 08:59 PM
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#44
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Member
Join Date: Jun 2021
Location: Full-time, Nevada
Trailer: 2022 21NE
Posts: 90
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Thank you guys, looks like I do have the switch, and it was in the ON (LI) position. So it isn't erroneously set to LA.
https://wfcoelectronics.com/wp-conte...l-FINAL-RP.pdf
Page 7 here probably isn't the same for the LIS model, but I don't see any mention of it in the manual. Does anyone have a reference for what the charge modes are with the LI setting?
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04-04-2022, 09:04 PM
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#45
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Member
Join Date: Jun 2021
Location: Full-time, Nevada
Trailer: 2022 21NE
Posts: 90
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Quote:
Originally Posted by John in Santa Cruz
anything over around 13.7V or so with zero amps going into the batt, and a lithium battery is 99.9% fully charged 14.2-14.4V is the normal voltage limit for a LFP charger.
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Looks like my two batteries in parallel are both now settled at 13.5v after being plugged into shore power all day. I would expect it to be more, right?
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04-04-2022, 09:23 PM
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#46
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Site Team
Join Date: Dec 2017
Location: Mid Left Coast, California
Trailer: 2014 Escape 21
Posts: 5,152
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Quote:
Originally Posted by Crazypill
Thank you guys, looks like I do have the switch, and it was in the ON (LI) position. So it isn't erroneously set to LA.
https://wfcoelectronics.com/wp-conte...l-FINAL-RP.pdf
Page 7 here probably isn't the same for the LIS model, but I don't see any mention of it in the manual. Does anyone have a reference for what the charge modes are with the LI setting? |
LFP batteries don't really have charge modes, you dump max current into them until the voltage hits max voltage (14.2-14.4V), then hold that voltage until the current goes to zero. some chargers will fall back on a 'maintenance' state with a lower voltage but its not actually needed.
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04-05-2022, 07:58 AM
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#47
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Senior Member
Join Date: Mar 2016
Location: Burlington Twp., New Jersey
Trailer: 2010 Escape 19
Posts: 7,146
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Quote:
Originally Posted by Crazypill
Thank you guys, looks like I do have the switch, and it was in the ON (LI) position. So it isn't erroneously set to LA.
https://wfcoelectronics.com/wp-conte...l-FINAL-RP.pdf
Page 7 here probably isn't the same for the LIS model, but I don't see any mention of it in the manual. Does anyone have a reference for what the charge modes are with the LI setting? |
Your link is to the manual for the older WFCO-8955.
See page 8 here:
https://wfcoelectronics.com/wp-conte...-Manual-RP.pdf
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04-05-2022, 10:11 AM
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#48
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Senior Member
Join Date: Jan 2021
Location: USA, Nunavut
Trailer: Escape
Posts: 274
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WFCO 8955 AutoDetect
ETI used the new WFCO AutoDetect (no switch) for our new 5.0. Doing our first shake-down camp this week at Ft Desoto. The 5.0 was at 70% SOC. Ran the 3-way refrig on DC during travel but with the panels, warm sunny FL day, and Orion charger, battery use was negligible and SOC didn't change.
Plugging into shore power at the campsite WFCO kicked in at 52-55 amps, according to the Thornwave. Didn't take very long and noted the 4-Li batteries where at 100%, 14.4V, although we were busy and we didn't time it, exactly.
Clearly the WFCO Autodetect has successfully recognized it's charging Li batteries, doing 2-stage charging. Turning off the batteries and panels for the remainder of this stay as we will be on shorepower and AC.
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04-05-2022, 11:54 AM
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#49
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Member
Join Date: Jun 2021
Location: Full-time, Nevada
Trailer: 2022 21NE
Posts: 90
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Quote:
Originally Posted by rubicon327
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Ah, thanks for that. Judging from what I see here, since my batteries are resting at 13.5-13.6 and the capacity is 460ah, I should just power cycle the WFCO by reconnecting shore power for another 1-4 hour absorption charge mode to get the battery bank to a higher SOC. 
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04-06-2022, 09:41 PM
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#50
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Junior Member
Join Date: Sep 2019
Location: Saint Paul, Minnesota
Trailer: 2020 Escape 5.0ta
Posts: 11
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I'm a novice at this stuff, but I'm wondering if your original high current flows were due to the different state of charge between the two batteries. I'm thinking that with them now both equally charged, you will be fine going forward. It's my understanding that paralleling two unequally charge LiFPO4s can be quite dangerous due to their ability to throw and accept such high amperages.
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