Disabling smart charge

[Kardaani]

I read about Fords Smart Charge battery charging and disabling it by pressing ECO button in dashboard. My custom doesnt have the ECO button. Just wondering will the Start/stop disable -button do the same thing? (Meaning button whitch has a letter "A" inside a circle). Or do i have to add the ECO button and wirings to get traditional full charging? The manual gives so contradictory info about it so i have no idea.

I have y 2014 custom with 2 batteries and the alternative battery will run flat during a week. Its replaced this september and power usage is not so much. Just 15min park heater in the mornigs. Daily travel with car is 65miles+ and used travel time more than one hour. Still after a week now the batterys rest voltage is 11,9V and needs to recharge with outer charger. I have been using Ctek automatic charger and after charging the battery voltage is about 12,8V whitch is good for new battery. Next sunday it will be again about 11,8-12,00V and needs charging again. Been like this few weeks now.

I checked the current what car is discharging the battery when parked and locked etc. That was about 200mA so im saying the car doesnt run the battery flat when parked. Its the worldsaving cars smart charging system that doesnt charge the battery.

[BHM]

As copied from the BEMM manual.

4.3.3 Start-Stop Override and
Configurable Charging
There are two control methods to switch the
power supply system to Conventional Charging.
This maybe required for converters requiring
battery voltage that is being charged by the
alternator in the range of 14.0 to 14.9 volts. Such
applications include boost or supplemental battery
charging, compensation for volt drop or high
Ampere electrical loads whilst the engine is
running.
1. ECO Switch - Manual Operation
The ECO functions are OFF when the ECO switch
is pressed and the LED is ON (Conventional
Charging). It can be reactivated if the ECO switch
is pressed again or the ignition key is set to
Accessory or OFF (Normal Charging) see Summary
of the Available Charging Modes table.

2. Hardwire Input
NOTE: Only available on Body Control Modules
(BCM) with software version BK2T-14C184-AG
or later. Not available before September 2013.
This is a pin in the BCM that the customer can
connect to and switch between open circuit and
ground to change between Normal Charging and
Conventional Charging modes.
The Hardwire Input can be accessed in three ways:
• Pre-installed as part of a Camper Donor
vehicle.
• Pre-installed as part of the High Specification
Vehicle Interface Connector (A608) and a link
from the Hardwire Input to the chosen switch
and ground point, but must not be a permanent
ground. The grounding should only occur for a
duration of the third party system needing a
certain functionality and performance which
can only be met by turning off the fuel save
features of Smart Charging and Start-Stop.
Grounding permanently might invalidate the
emission and homologation of the vehicle and
the vehicle could need to be re-homologated
as part of the approval process by the
converter. A mating 43 way connector with
three meters of wiring (with all wires) is
available as a kit (KTBK2V-14A411-D_) from
your local Ford dealer. For information on High
Specification Vehicle Interface Connector
Refer to: 4.19 Electrical Connectors and
Connections (page 154).
• As a kit to install the additional pin in the BCM
connector pin C3-38. The kit
KTBK2V-14A411-E_ is available from your local
Ford dealer.

and a linky to another post

viewtopic.php?f=65&t=168682



BHM

[hughesyn]

The start-stop deactivation button also disables SRC smart charging on my mk8, according to the BEMM.

I haven't downloaded the manual for a custom, but it's probably the same.

It's a pain, because I want SRC, but most of the time don't want start stop. I have to remember to turn start-stop back on to get the better economy.