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Basics of the Battery Management System BMS

Started by SHOdded, December 20, 2019, 08:16:54 AM

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SHOdded

2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

SHOdded

Note on adding accessories directly connected to the negative battery post
https://www.noln.net/articles/2122-battery-management-the-challenges-of-a-smart-system

QuoteTo preserve the battery, the system monitors the condition of the battery and may disable certain electrical systems when an excessive electrical drain is detected. Systems that could be disabled may include heated and cooled seats, heated steering wheel, rear defrost, AC/heater fan, audio system or navigation. If the system disables these accessories, a message usually appears to reflect that this action has been taken to protect the battery. It does not indicate a problem with the mentioned accessories or recommend a battery replacement.

Accessory devices added to the vehicle should not be attached to the negative post of the battery, as it can cause an inaccurate measurement of the state of charge of the battery. Also, when charging the battery, attach the negative cable of the charger to a good engine ground instead of the negative post of the battery. This allows the BMS sensor to accurately measure the battery state of charge.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

ZSHO

#2
I wholeheartedly agree to not mess with the Negative side on the Battery!
I have the Meth Alky kit connected to the (Positive side) of the Battery terminal and used the inside fender for Ground refererence source as pictured below. Z   :)



2013 Performance Package SHO| Livernois Custom Methanol Tune|3-Bar Map|Reische-170-Stat|Full Race Tial-10psi BOV in Black|PPE-Gloss Black Hot Pipes|EPP Dual Intake in Gloss Black|PPE Catted DP|Corsa Sport Cat Back Exhaust|H&R Sport-Springs|CFM Performance Billet Valve Cover Breather In Gloss Black|Llumar 20%Ceramic window Tint|MSD Ignition Coils in Black|Extreme Roof Spoiler|Redline Fluids all around|Gearhead Intercooler|First-SHO With Direct Port Alky-VP-M1-100%-Methanol Injection|LMS-Custom-Dyno-Tuned @ 415whp-465wtq| Best Trap Speed of 115.54 mph|