Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN







Search Auto Parts

Overcharging and battery drains over night


  Email This Post



Russell775
New User

Jan 26, 2017, 3:26 PM

Post #1 of 6 (159 views)
Overcharging and battery drains over night Sign In

1986 Toyota p/u 22R 300k miles

The battery would drain over night so i would just take a battery cable off and it was fine. But then after a while it would overcharge the battery and it kept getting worse. At first if i ran the heater high beams and wipers the battery light would turn off but that doesnt work anymore and dang near melts the battery.
Only thing i have done to the truck is pull the stereo out.


(This post was edited by Russell775 on Jan 26, 2017, 3:29 PM)


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jan 26, 2017, 4:29 PM

Post #2 of 6 (146 views)
Re: Overcharging and battery drains over night Sign In

Do you have a digital volt meter? If so, what is the charging voltage? A faulty alternator regulator will cause an overcharging condition.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jan 26, 2017, 4:30 PM)


Russell775
New User

Feb 11, 2017, 3:39 PM

Post #3 of 6 (100 views)
Re: Overcharging and battery drains over night Sign In

Found my meter and its charging at 19.25v. 😲
Would a bad voltage regulator be a source of the battery drainage too?
Thanks


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 11, 2017, 6:29 PM

Post #4 of 6 (90 views)
Re: Overcharging and battery drains over night Sign In

Don't be so sure it's draining at all. Charging at that rate will fry the battery in pretty short order. It will also do a lot of damage to electrical components in the car.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Russell775
New User

Feb 17, 2017, 8:57 AM

Post #5 of 6 (61 views)
Re: Overcharging and battery drains over night Sign In

Got a new alternator and that fixed all problems


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Feb 17, 2017, 10:59 AM

Post #6 of 6 (57 views)
Re: Overcharging and battery drains over night Sign In

You should retest battery as if the one in it now was getting out that 19.25V it took a hit and no question got too hot to trust if more than a few seconds of that. The problem is playing "ping-pong" back and forth with a once failed alternator output and an IDK what or how to trust the battery except long time without problems,


T



(This post was edited by Tom Greenleaf on Feb 17, 2017, 11:02 AM)






  Email This Post
 
 


Feed Button




Search for (options) Privacy Sitemap

shopify
site analytics