Examine your civic’s battery posts where they attach to the battery
If significant corrosion is present, use a wire brush to clean it
Corrosion can impede proper battery connection, leading to drainage issues
There are specificbattery post clea…
Use a multimeter to measure the current draw from the battery when the vehicle is off
A normal draw should be around 50 milliamps or less.
Honda battery going dead overnight
Here's how to find a honda key off drain and fix it!
When i measure the draw at full battery charge it says 70ma initially but then jumps up to 3.5a, it sometimes goes down to.
To resolve, inspect the alternator for signs of wear or damage and consider replacing it
Another potential reason for battery issues in a honda civic is parasitic drain
Learn how to diagnose a parasitic battery drain using a multimeter, fuse testing, and practical steps to isolate the faulty circuit.
Your 12v test light is fine for testing for parasitic draw, anything but the faintest glow from the bulb filament is a draw that is too high
Start by removing the main fuse, if the draw goes away,.
Find and fix a parasitic battery drain by testing current draw, pulling fuses, and repairing the faulty circuit before it kills your battery again.
If your vehicle is drawing power from the battery and all of the lights and other electrical components are off, you might have a parasitic battery drain (or draw)
Luckily, you can usually find the cause of a parasitic draw yourself
Start by connecting a digital multimeter to the negative battery.
My daughter's 1998 civic dx hatchback (all stock) has had a prolblem with battery drain when it's not being driven on a regular basis
If the car isn't driven for a week or more, it's difficult to.