Battery Voltage 2.7 2021 STX

[Dizz]

Truck sitting a lot under 9K miles
Been reading about all suggestions for batteries and heard get size 8 AGM
I looked at book today and AGM size 6 is what my truck takes.$200 at Walmart
My truck always starts good but I’ve had few unexplained gremlins with screens
I’ve had 2 small trickle chargers Tender Jr and another 3 amp
Green light shines solid for complete charge but voltage is 12.2-12.25V
I’m thinking it should be closer 12.7
I just put old school charger on 6/2 amp at at 6 amps it’s showing 13V while charging
Am
I doing something wrong or is battery bad although it starts great
Thanks

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[Dizz]

Sorry 2022 STX

 

[Dizz]

Don’t know how fishing lures got there ?

 

[Gros Ventre]

4 months after delivery (2021) I got some funny warnings on the electrical system. As I was on the road for Thanksgiving travels I just pulled in to a local NAPA dealer (I'm partial to NAPA) and bought an off the shelf specified battery (an AGM type). Have not had a peep since out of the electrical system since then. No trickle chargers or anything else like that. This includes two Wyoming winters where it gets down to -30ºF. Unless your time standing goes into weeks, I think you should just get a new battery and be done with things. If you get a new battery, you might give it what I call a wetting down charge, a low rate long term charge, say 2 amps for 8-12 hours.

 

[Dizz]

Thanks Gros
My vehicle is not essential at this point and it always starts good cranking speed
I’m just not understanding with 2 smart chargers why they cycle and finish with 12.2 V
Your advice is sound and I’m sure I’ll end up with new battery

 

[fordtruckman2003]

You can go with H6 but when H8 fits why not take the extra capacity?

 

[Dizz]

Didn’t measure to see
Thanks

 

[fordtruckman2003]

Didn’t measure to see
Thanks

Double check but every non Powerboost should have plenty of room on battery tray. I think this time of year there is a post daily about batteries.

 

[Highway 11]

I just put an H8 in my 2.7 Ecoboost today. No issues with fitment.

 

[Dizz]

Thanks!

 

[Babbage]

I think all the 21-23 F150 except power boost have the same battery tray, which does accept a 850cca AGM Battery - I just upgraded to the 850cca after about 3 years, I wasn't having any issues and never had to trickle charge etc - but I can hear a clicking noise like almost like a blend door or the BOO (break on off switch) clicking, it's a "soft click sound" that happens about every 20-30 minutes. I have pro power with 2 alternators, no issues just figured with all the electrics I'd go with the Ford big boy battery - link in my sig.. I used my Ford points.

 

[Dizz]

Thanks!
I see I can use the big battery but still would like to know what the normal battery voltage should be after it sits for a week
It spins quickly and starts easily on the 12.2 volts but in past for a non AGM typical battery I’m used to seeing around 12.5 volts or a bit more
Also curious what the minimum voltage required for regular updates
Thanks Again!

 

[Dizz]

I’d hate to spend $300 for big size 8 battery and still see 12.2 volts after sitting week or 2?

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