Questions tagged [battery-drain]

A loss of electrochemical potential between positive and negative terminals a car's battery, creating a loss of power, sometimes to the point of being unable to start the vehicle.

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1answer
6k views

What would cause a slow drain of a battery?

Have a 2002 Toyota Camry, I got a switch to disconnect the battery, but before that the battery would slowly drain if you left the car for about a week. The solution is fine for now, but how would I ...
6
votes
5answers
59k views

Car battery won't charge above 50%

I had a problem starting my car after not driving it for two weeks. After charging the battery with a CTEK trickle charger via the cigarette lighter socket, the car started fine. I had my car battery ...
3
votes
1answer
799 views

Why won't my car even crank?

While inspecting the wires under the hood of my 1995 Camry LE (v6) I noticed that a wire ending at my alternator was loose. Note that before I disconnected anything, my car would start fine... So I ...
3
votes
2answers
731 views

What are "normal" battery recharge needs for modern cars?

I just bought a brand new car (Honda Accord Touring 2017). Its battery recharge characteristics are: - loses 1/3 of its charge in 4 days (if the car is resting. See test attached) - loses 1/3 or its ...
1
vote
4answers
3k views

Minimum driving miles to keep battery charged (Honda Civic 2015)

I have a 2015 Honda Civic and I got a new battery for it about six months ago. Recently the car hasn't been starting and required jumps every morning to run. I took it to the dealership and they let ...
1
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1answer
3k views

Emergency flashers drain the battery in 5-10 minutes

I have a 5yo Honda CRV. Recently I had two episodes when the car did not start after it was left with emergency flashers (hazard lights) on for 5-10(?) minutes. I had to ask someone to jump-start it (...
1
vote
2answers
421 views

Device that prevents vehicle from draining accessory batteries?

Not exactly sure if the device / component or setup I'm asking about even exists. But, here is my naive question (I am bad with electrical in general): Is there something built into modern vehicle ...