Cylinder 8 misfire engine light

[MTF]

You should be ok, but a cheap charger is a good thing to have.

I have something like this but 25 years old. LOL
You don't want to go less in charging amps. otherwise it will that forever to charge a battery that's on it's way out.

Schumacher/6/4/2 Amp fully automatic microprocessor controlled battery charger SC-600A- Read1Reviews onSchumacher #SC-600A

I also purchased this last year when my 2nd battery start giving me problems.
I can't say enough good thing about! It comes with all kinds of tips for laptop charging and USB charging cables for all phones.
600 CCA to start anything!!!!
Amazon.com: Antigravity Batteries AG-XP-10 Multi-Function Power Supply and Jump Starter: Automotive

 

[BRAPPPP]

What mode do you use for battery tender ?

 

[MTF]

Mine is so old that it has a 6v/12v switch and is a 4/6/8 amps, it does not have a start option like a one with a 4/6/8/50 amp.
I usually use 8 amp. and 4 and 6 for motorcycles and other small batteries.
You can use 4 amp. and let it charge over night it's like a deep cycle charge, but these new ones will auto shut off so it doesn't matter what mode.

All you really need is to keep the battery above 12.7 volts while Tuning.

If your going to Auto Zone see if they have a sale

 

[BRAPPPP]

Mine is so old that it has a 6v/12v switch and is a 4/6/8 amps, it does not have a start option like a one with a 4/6/8/50 amp.
I usually use 8 amp. and 2 and 4 for motorcycles and other small batteries.
You can use 4 amp. and let it charge over night it's like a deep cycle charge, but these new ones will auto shut off so it doesn't matter what mode.

All you really need is to keep the battery above 12.7 volts while Tuning.

If your going to Auto Zone see if they have a sale

My brother has one Ima borrow

 

[BRAPPPP]

It has 10 amp and 2 amp option

 

[MTF]

10 amps. is more than enough.

Do you keep your lights on Auto?
What happens if you leave the switch off, do any of the LEDs flash when you turn the truck on?

 

[BRAPPPP]

10 amps. is more than enough.

Should I just use that on my battery I have now? Or buy new one

 

[MTF]

Sure, charge it up a little and go for it.

 

[BRAPPPP]

I think mine is older than yours lol


---------- Post added at 01:31 PM ---------- Previous post was at 01:14 PM ----------

I pulled the fuses for the radio, interior lights, and navigation so less energy is being drawn when cycling key for flash

 

[MTF]

You may want to not do that!!!
It could send a signal that something a miss.

Don't for get the PCM, BCM and Nav/Radio all talk to each other.

Just power them off. Roll down the windows and shut the doors.