Maximizing Battery Life

[dtech]

Nice to hear your method is working. It has been a month since I last charged and desulfated and I really don't drive much. Tested and the results are stunningly scary considering status a month ago. Just charged and now desulfating.

Are you aware that desulfation is not always 100% reversal as your battery ages ? if you keep letting it discharge you will do more damage than desulfation can completely repair. Just my .02

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[IdahoRanger]

Are you aware that desulfation is not always 100% reversal as your battery ages ? if you keep letting it discharge you will do more damage than desulfation can completely repair. Just my .02

Appreciate the input. Will do better.

 

[dtech]

Appreciate the input. Will do better.

you are welcome, I think I'm serving an important role in society by being an advocate for battery health and proper treatment, thus my disdain for Ford's BMS. I recall I think airtech getting in touch with a Ford engineer who played a role in the regen charging and he not surprisingly touted it's efficiency potential but for the life of me I've not been able to tell any difference in mpgs with a disconnected BMS, my mpgs have been overall consistenly higher than EPA ratings, except of course when I hookup my trailer and watch the fuel guage go down, reminiscent of my 1959 Bonneville 389 with tri power but that hog had a big gas tank and it was maybe .39 /gal.

 

[IdahoRanger]

Are you aware that desulfation is not always 100% reversal as your battery ages ? if you keep letting it discharge you will do more damage than desulfation can completely repair. Just my .02

Got lucky since the desulfate did a fine job.

 

[moorejl57]

Got lucky since the desulfate did a fine job.

Looks good! Do you have the H7 battery and if so, isn't the CCA 850?

 

[airline tech]

Looks good! Do you have the H7 battery and if so, isn't the CCA 850?

Negative - The H-7 (Lariat) battery is 800 CCA

 

[moorejl57]

Negative - The H-7 (Lariat) battery is 800 CCA

Good to know, thanks!

 

[IdahoRanger]

Looks good! Do you have the H7 battery and if so, isn't the CCA 850?

Yes H7 800 CCA

 

[got3fords]

I would love to see the same battery tested 5 times in a row with 5 or 6 different testers to check accuracy and repeatability. That said, any tester if used often is good for tracking battery health.
Also, I just gave away my old carbon pile battery tester. No need for it with the new electronic testers.

 

[IdahoRanger]

I would love to see the same battery tested 5 times in a row with 5 or 6 different testers to check accuracy and repeatability. That said, any tester if used often is good for tracking battery health.
Also, I just gave away my old carbon pile battery tester. No need for it with the new electronic testers.

So you got my attention. I only have one tester but I have not so much as opened a door on the truck since I charged and desulfated yesterday. It was 96 degrees yesterday and 60 overnight.

The battery lost 1/2 its charge in 19 hours! Probably not long before this thing is toast.

This morning

Yesterday

 

[dtech]

So you got my attention. I only have one tester but I have not so much as opened a door on the truck since I charged and desulfated yesterday. It was 96 degrees yesterday and 60 overnight.

The battery lost 1/2 its charge in 19 hours! Probably not long before this thing is toast.

This morning

Yesterday

Well I see my Weize 850 cca that I bought for $126 is now up to $149 . Still a bargain though and you get to keep your old battery.

 

[airline tech]

So you got my attention. I only have one tester but I have not so much as opened a door on the truck since I charged and desulfated yesterday. It was 96 degrees yesterday and 60 overnight.

The battery lost 1/2 its charge in 19 hours! Probably not long before this thing is toast.

This morning

Yesterday

The readings you have are normal - due to the truck having some modules powered (24x7)
for (KAM) - Keep Alive Memory

I call your AM Reading - Wake-Up Voltage and is consistent with my plug-in voltmeter readings at every (1st start of the day) or even a few hours after shut-down.

The trigger voltage reading (actual battery voltage) for Deep Sleep, ASS Not Working etc is around 11.3 to 11.5 volts (Measured Wake-Up Voltage) this is the voltage the BMS sensor sees and reports to the BCM and triggers the various messages.

Your IR looks GREAT, that's the most important reading of the battery heath, how well it can accept the charge.
The voltage drop (overnight) is normal for the Ranger, the Ranger 2.3 critical battery voltage for starting (starter engagement) is about 10.6 volts.

One thing I have noted, other than the occasional (No-Start then Magically Starts) issue which is tied to the (Wake-Up) circuit - PCM Power Relay not being commanded to close from the BCM.
I have yet to see a wide abundance of posts of completely dead battery and no start issues.

So at least the BMS system does have a Positive Side to it, for that as I do not see a long thread of dead battery issues yes, we have the annoying messages and things not functioning the way they should, but you have to agree there is not allot of posts of hey my battery died.

 

[IdahoRanger]

The readings you have are normal - due to the truck having some modules powered (24x7)
for (KAM) - Keep Alive Memory

I call your AM Reading - Wake-Up Voltage and is consistent with my plug-in voltmeter readings at every (1st start of the day) or even a few hours after shut-down.

The trigger voltage reading (actual battery voltage) for Deep Sleep, ASS Not Working etc is around 11.3 to 11.5 volts (Measured Wake-Up Voltage) this is the voltage the BMS sensor sees and reports to the BCM and triggers the various messages.

Your IR looks GREAT, that's the most important reading of the battery heath, how well it can accept the charge.
The voltage drop (overnight) is normal for the Ranger, the Ranger 2.3 critical battery voltage for starting (starter engagement) is about 10.6 volts.

One thing I have noted, other than the occasional (No-Start then Magically Starts) issue which is tied to the (Wake-Up) circuit - PCM Power Relay not being commanded to close from the BCM.
I have yet to see a wide abundance of posts of completely dead battery and no start issues.

So at least the BMS system does have a Positive Side to it, for that as I do not see a long thread of dead battery issues yes, we have the annoying messages and things not functioning the way they should, but you have to agree there is not allot of posts of hey my battery died.

Appreciate the insight on the numbers. This battery maintenance stuff is new to me.

 

[TJC]

Are you aware that desulfation is not always 100% reversal as your battery ages ? if you keep letting it discharge you will do more damage than desulfation can completely repair. Just my .02

That is one of the primary reasons I turned off all the excess power drains when the truck is turned off. I do not need headlights staying on well after the truck is off. I unplugged the cellular modem and turned off Telematics (pulled the fuse and turned it off in Forscan). I don't need bells and whistles sounding each time the door is opened or a seat belt is removed. Forscan is great for that type of thing. I turn the headlights off instead of leaving them in automatic mode.

My 2020 Ranger is now close to the 2005 Ranger with regards to dark current drain. Battery charge patterns now are essentially the same. And I am not seeing large drops in battery voltages overnight in the 2020 Ranger any longer.

I am scratching this off my list of issues.

 

[got3fords]

After 10 days of vacation, hot weather, and not driving the Ranger, I did a battery check when we got back. Voltage was 12.38V, IR was 3.9Ohm. Tester said battery ok, charge. This was the best of 3 tests. I forgot to record SOH. Original battery, on-board desulfator.

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