Thread: Disconnect the Battery while away?

Based on an earlier thread, my Defender, which is resting, is on a 5.0 ctek on a 7 day timer. It gets charged once a week.
Apparently in this scenario a smaller charger is better than larger?
I charge via the crank battery rather than auxiliary, because. ..?

It got moved this week after 2 months, all good.

If it is a C-tek why have you got it on a timer? These things turn themselves off when voltage reaches optimum and when it falls a bit they start again.

It repeats this over and over keeping the battery at its optimum. Good for the battery.

My battery guy says the 5.0 amp ctek is perfect for maintenance of either my van or disco battery setups.

He tried to explain why it is better for maintenance charging but it was over my head so I took him at his word.

My van is in a garage that has occasional outages due to an overly sensitive circuit breaker - reset the breaker and it starts up again no fuss. Imagine it would also restart after a power outage too.

Power outage will not effect a C-tek. It will restart when power is restored.

I have a 7 amp on my caravan which gets used for 4 weeks a year. For the other 48 it has a C-tek on it full time.

Originally Posted by p38arover

If you are using an automatic charger, get one that will restart after a power outage. I recently found this after returning from 7 weeks overseas. I'd left the Rangie on charge but when I got home the battery was dead flat. There had been a blackout a few days after we left and the charger didn't start up again after power was restored, it sat there in voltage monitor mode.

The battery was so flat that none of my smart chargers would charge the battery, they all indicated the battery was short circuit. I recovered the battery with an old dumb charger and am still using the battery.



One usually removes the ground/earth leads first because, if the spanner contacts the chassis, there won't be short circuit. On any modern car that means removing the negative leads. On older Land Rovers (and most, if not all older British cars), the positive lead was the one that was connected to chassis, i.e., positive earth.

Hi I think you misunderstood my question

I was wondering if there is any impact on the car by disconnecting the terminals as drive safe mentioned when leaving a car for an extended time


Rich

Originally Posted by AndyG

Based on an earlier thread, my Defender, which is resting, is on a 5.0 ctek on a 7 day timer. It gets charged once a week.
Apparently in this scenario a smaller charger is better than larger?
I charge via the crank battery rather than auxiliary, because. ..?

It got moved this week after 2 months, all good.

That was what I was thinking of doing

Sounds like a good option instead if leaving charger on all the time

Rich

Disconnecting the battery is not detrimental to the car, but is to the battery as I said earlier.

Each to their own, but IMHO a maintenance charger is the best option.