Is a discharged car battery bad?
Once a car battery has been drained below a state of full discharge, the damage has been done. If this is the first time that it has been discharged, you should be able to fully charge the battery and continue using it, but every time it is discharged below that threshold of 10.5 volts, the damage is done.
What could be the effect on the vehicle when the battery is discharged while driving?
A dead battery can cause your car’s engine to stop running, even while you are driving. The depleted battery indicates that some part of the electrical system is not functioning properly. Typically, a malfunction of the alternator is the cause.
How do I know if my car battery is discharged?
Signs of a dead car battery
- A Sudden, Slower Start. When temps drop below 20 degrees, generally any car’s starting cadence will slow down.
- Headlights and Power, But No Start.
- No radio.
- Swollen battery size.
- Odd smell from your battery.
- Your battery is old.
- Check engine light flashes.
- Vehicle Starts, Then Dies Immediately.
How long does it take to charge a fully discharged car battery?
It takes about 4 to 24 hours for a car battery to get fully charged. To determine how long it will take to fully charge your battery, you need to look at your battery’s ampere and your charger. If you have a 48 amp battery and a 4 amp charger, it will take almost 12 hours to fully charge your dead battery.
Why is the battery on my Toyota Highlander not working?
My wife and I ran into a first for us – she went to unlock our 2008 Toyota Highlander and it wouldn’t unlock with either remote. Yeah, I figured the battery was dead as we hadn’t run it for maybe two months due to the pandemic crap.
Why is my Toyota Highlander stop / start disabled?
Toyota has a TSB about defective batteries on all stop / start 3.5 liter (2017-2019) Highlanders. I have replaced 2 batteries on my 2018 Highlander. Both times I got this same (battery charging) error message.
What kind of Charger do I need for my Toyota?
To determine the type of charger you’ll need, you need to figure out what kind of battery you have. It will be stamped somewhere on the battery, and will either be: Pick a charger that’s meant for your battery type, then set it aside just in case.
What should I do if my Toyota battery is dead?
Be sure to check carefully. If your battery is dead in a parking lot, or you don’t have a charger and need to go, this is a quick fix. Sometimes, it’ll be okay after you’ve run it dead by leaving the lights on one, maybe two times, but chronically letting your battery drain will kill it over time — probably taking the alternator with it too.