Trickle charger
#21
The Battery SOC value can only be trusted if the Quality factor says ok. There is a DID for the quality factor but not at work to post.
The different charging modes are just that. There are multiple versions for fuel economy, standard charge and battery refresh operation.
Soft reset does reset the BMS SOC value temporarily, but also sets the quality factor as no good. Once battery is resting overnight, the BMS will be able to again measure SOC, update and if certain conditions exist, quality factor says good.
The different charging modes are just that. There are multiple versions for fuel economy, standard charge and battery refresh operation.
Soft reset does reset the BMS SOC value temporarily, but also sets the quality factor as no good. Once battery is resting overnight, the BMS will be able to again measure SOC, update and if certain conditions exist, quality factor says good.
#22
Senior Member
Thread Starter
2015 F150 5.0L specifically uses an SLI battery with Hall Effect Sensor. It is a doughnut looking module wrapped around the negative B- cable near the battery. Look in your jump start procedure of the manual and should recommend a negative connection point, can't remember if we submitted a location for the 15MY. You can connect directly to B+ but suggest to connect to engine ground so the Hall Sensor can measure charging voltage to accurately monitor true Battery SOC. But, overall it really does not have an effect on vehicle functionality. It could limit fuel economy charge modes, limit timers for power point operation or radio extended play. I do recommend charging our batteries periodically.
As someone posted, the owner's manual apparently doesn't really call out anything about connection for a battery charger, other than leaving the truck off and locked for 8 hours for it to "re-learn" the system?
Anyone else has comments on connecting my charger correctly to my truck?
#23
Senior Member
So, I should use the "jump start" connections for my battery charger as well?
As someone posted, the owner's manual apparently doesn't really call out anything about connection for a battery charger, other than leaving the truck off and locked for 8 hours for it to "re-learn" the system?
Anyone else has comments on connecting my charger correctly to my truck?
As someone posted, the owner's manual apparently doesn't really call out anything about connection for a battery charger, other than leaving the truck off and locked for 8 hours for it to "re-learn" the system?
Anyone else has comments on connecting my charger correctly to my truck?
#24
Senior Member
10-4 Just hook it up to the battery + & -.
Been doing that and have no issues
What I use is a Schumacher 1.5A maintainer, but do not use one of those now days as the design has changed and when I monitored the voltage it crept up to over 16.5 volts -not good. So no when I added another vehicle including my 18 F150 I used Battery tender. BT's are 3 stage and are appropriate for 90% of us. My commonly used rigs sit 6 months between use so the use of a battery maintainer is really a requirement for long battery life. The rest of my collection of rigs are all on maintainers and some have not seen use for years and I expect they to start up with no issue.
My daily driver does not use a maintainer.
BTW, Do your homework and find out a trickle charger is not a maintainer and low amp is the correct choice.
Been doing that and have no issues
What I use is a Schumacher 1.5A maintainer, but do not use one of those now days as the design has changed and when I monitored the voltage it crept up to over 16.5 volts -not good. So no when I added another vehicle including my 18 F150 I used Battery tender. BT's are 3 stage and are appropriate for 90% of us. My commonly used rigs sit 6 months between use so the use of a battery maintainer is really a requirement for long battery life. The rest of my collection of rigs are all on maintainers and some have not seen use for years and I expect they to start up with no issue.
My daily driver does not use a maintainer.
BTW, Do your homework and find out a trickle charger is not a maintainer and low amp is the correct choice.
#25
Senior Member
Join Date: Dec 2006
Location: Oneida County, Central New York
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Battery Tender people say you can hook directly to the battery (they don’t know anything about our BMS) or to the positive and the ground where the battery is grounded to the frame.
my 2013 has the BMS unplugged and has sat for two weeks.
Exhaust cutout is grounded to it as will the winch.
Battery tender cables will be direct to battery and BT Junior used inconsistently and sporadically.
my 2013 has the BMS unplugged and has sat for two weeks.
Exhaust cutout is grounded to it as will the winch.
Battery tender cables will be direct to battery and BT Junior used inconsistently and sporadically.
#26
Depending on the type of clamps you have (and thus sensor) will depend where you should hook it up. If you have the sensor integrated into the positive terminal, then hooking it up to the battery is fine... just go to the threaded post on the positive clamp, so the charge current will cross the sensor. If you have the Hall effect sensor around the ground clamp, take positive to the battery (the stud, again) and ground to somewhere downstream of that sensor... I'd probably go to one of the body ground points, since there's already a screw there.
Nothing bad will happen if you don't do this, but the BMS may get confused from time to time.
Nothing bad will happen if you don't do this, but the BMS may get confused from time to time.
#27
There are two sensor types for the Battery. S/S vehicles get the integrated sensor that mounts directly to the battery negative post. 2015 - 2017, only 2.7L had this type. 2018 Gas and later (I didn't release the diesel version so not sure if it has it or not. I can check when I get into work tomorrow if anybody is curious). For non-S/S vehicles prior to 2015 and 2015 - 2017, 3.5L, 5.0L used the hall effect doughnut looking sensor.
Just note there is also a hall effect sensor we use on the alternator output cable. This is placed generally close to the alternator but can be positioned near the battery for packaging reasons. This would be on the Battery B+ cable.
There are no instructions in the manual that I review for connectiong battery chargers and generally Ford believes any mainenance work such as this belongs to the dealership. If you hook up directly to battery posts, bypassing the hall sensor, it will simply have incorrect Battery SOC readings that can affect the shut down message and protect vehicle for low SOC and starting.
Just note there is also a hall effect sensor we use on the alternator output cable. This is placed generally close to the alternator but can be positioned near the battery for packaging reasons. This would be on the Battery B+ cable.
There are no instructions in the manual that I review for connectiong battery chargers and generally Ford believes any mainenance work such as this belongs to the dealership. If you hook up directly to battery posts, bypassing the hall sensor, it will simply have incorrect Battery SOC readings that can affect the shut down message and protect vehicle for low SOC and starting.
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ThunderStruck007 (12-13-2018)
#30
Senior Member
Thread Starter
There are two sensor types for the Battery. S/S vehicles get the integrated sensor that mounts directly to the battery negative post. 2015 - 2017, only 2.7L had this type. 2018 Gas and later (I didn't release the diesel version so not sure if it has it or not. I can check when I get into work tomorrow if anybody is curious). For non-S/S vehicles prior to 2015 and 2015 - 2017, 3.5L, 5.0L used the hall effect doughnut looking sensor.
Just note there is also a hall effect sensor we use on the alternator output cable. This is placed generally close to the alternator but can be positioned near the battery for packaging reasons. This would be on the Battery B+ cable.
There are no instructions in the manual that I review for connectiong battery chargers and generally Ford believes any mainenance work such as this belongs to the dealership. If you hook up directly to battery posts, bypassing the hall sensor, it will simply have incorrect Battery SOC readings that can affect the shut down message and protect vehicle for low SOC and starting.
Just note there is also a hall effect sensor we use on the alternator output cable. This is placed generally close to the alternator but can be positioned near the battery for packaging reasons. This would be on the Battery B+ cable.
There are no instructions in the manual that I review for connectiong battery chargers and generally Ford believes any mainenance work such as this belongs to the dealership. If you hook up directly to battery posts, bypassing the hall sensor, it will simply have incorrect Battery SOC readings that can affect the shut down message and protect vehicle for low SOC and starting.
as you kindly pointed out in an earlier post, on my ‘15 5.0, I do have Hall effect sensor by my negative post. And stated I should check my owners manual, and use the recommended of the negative jump start connection point for charging...
I then assume I just connect directly to the battery positive post?
is this correct? Thanks for the help!