Background

My car’s battery ran flat due to accidentally turning on the inside lights and forgetting to turn them off. I called the NRMA road assistance and was lucky they came within 10 minutes. They knew that I just had a new battery installed, and they checked, and 0% left.

They did a jump start and asked me to leave the car running for 1 hour. However, due to its a new battery, they suggested driving to the local mechanic to fully charge the car battery, and they said it would probably leave the car for half or full day.

I asked for alternatives, and they suggested getting the Smart Charger so I can do it yourself (DIY) at home.

Solution

I bought the Smart Charger from NRMA for around AUD 150.

After the jump start and keeping the car running for 1 hour, I plugged the device into a power outlet.

As my car’s earth is on Negative (black), I plugged the Red cable into Positive on the battery and the Black cable into the earth (next to the battery) as per documentation.

I set to battery mode to the Calcium.

I was advised by NRMA guy to set this.

The NRMA guys told me it could take 24-36 hours to complete.

So I documented this time cause I need to know how long it takes to fully 100% charge.

Here is the timeline:

At 9:30 AM, the charging started. The power is solid red. The Charging light is solid blue.

At 11:30 AM, the power is solid red. The Charging light is solid blue.

At 12:30, the power is solid red. The Charging light is solid blue. The Fully Charged light started blinking green – not green solid yet.

At 13:30, the power is solid red. The Charging light is solid blue. The Fully Charged light started blinking green – not green solid yet.

At 15:30, the power is solid red. The Charging light is solid blue. The Fully Charged light started blinking green – not green solid yet.

To be continued …

Sources

Century Batteries: Maximising Battery Life

The End

Congratulation on reaching the end of this article. We hope we have shed some light on outlining how to fully charge a new car battery when it’s flat.

We write this so that this is not a fixed article. Like in this journey, we learn as we go and re-write some parts, so please keep pinging with this article.

We also would love to hear about how you deal with the situation and what problems you might be facing. Please feel free to comment below this article and let us know if you have any questions we can answer! Thanks again!

Big thank you for the photo by Sergey Meshkov from Pexels.

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