Forum Discussion
ktmrfs
Mar 23, 2017Explorer II
horton333 wrote:
This is what I replaced mine with (I used the 75 Amp model).
There are 2 wires in (AC), 2 wires out (DC) and one ground. 2 Screws - and videos as noted but it is real simple to replace.
The voltage is 14.6 max which is a shade higher than most, that should not hurt LED lights.
The algorithm it uses is simple, and better than most units. If it determines the batteries need charging when AC is first applied it goes to 14.6 (max, current limit may prevent that at first) for 4 hours.
Note officially the unit you have is three stage. Some people with large battery banks and very short wires claim to have even seen it go into boost. Few people manage to actually see that as it has a terrible algorithm for deciding when to boost the voltage. I could not get mine to go into boost even with the battery hooked directly to the bus bar and with a near dead battery (12.1 volts).
x2. it looks at charger output voltage AFTER it applies full current and if it is above a very low level, it drops to 13.6V.
The PD looks at converter voltage before it applies full current and if it below a reasonably high voltage it goes into boost mode.
myself and 4 others never could get a WFCO to go into boost mode, and we all went with a PD unit. Now we are happy
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