WFCO WF-8955 amps in absorption mode
I have a WFCO-8955 (55 amp) that absolutely will not go into bulk mode even though it’s a 3 stage converter. Not sure if it’s inadequate wiring or an inadequate converter. It’s always 13.6-13.8 no mat...
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typical WFCO operation. Part of the problem is long undersized wiring. But IMHO them major issue is how the WFCO decides to go into boost mode. It stuffs the rated current into the battery and then AT the WFCO OUTPUT looks at the voltage needed to maintain the current. If it is above something around 14V it drops to the "trickle" mode. so... voltage drop along the run is usually enough to never let it go into boost mode. so, your stuck with a 13.6V or so output, and 15-20A.
If you only have one battery, likely never go into boost mode. a huge bank, sometimes. Others have done tricks, turn on a heavy load to keep the battery voltage down low so the WFCO output doesn't reach the trip point initially. Make sure you have very large and short wire to the batteries., usually very hard to do since most trailers have the converter way away from the tongue.
solution.............. replace with a well designed charger, Progressive dynamics, iota etc.
If you only have one battery, likely never go into boost mode. a huge bank, sometimes. Others have done tricks, turn on a heavy load to keep the battery voltage down low so the WFCO output doesn't reach the trip point initially. Make sure you have very large and short wire to the batteries., usually very hard to do since most trailers have the converter way away from the tongue.
solution.............. replace with a well designed charger, Progressive dynamics, iota etc.
