Thread: Disconnect the Battery while away?

Ctek explicitly claim this risk arises from old style trickle chargers and that their method of charging does not entail this risk and they explicitly state that their chargers are safe for long term use due to their internal temperature monitor and other mumbo jumbo.

I too am a sceptic and a slow reluctant convert.

Originally Posted by d2dave

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.

It was suggested by an experienced forum member, that a weekly charge was better than a 4 month extended charge, but either will work with Ctek.

I have been a fly in fly out worker for nearly three years and just park and forget my vehicle until my return four weeks later. No disconnect or trickle charge.
So far no problem at all.
hope this helps

I have a CTek 25amp charger.
Look what can happen overnite
2 Deep cycle batteries severely discharged.Charging in tandem to slow the re-charge rate,one obviously had a mechanical fault.

Andrew

Originally Posted by AndyG

It was suggested by an experienced forum member, that a weekly charge was better than a 4 month extended charge, but either will work with Ctek.

When My D4 was delivered,the dealer recommended lowering the suspension and locking the suspension it if it was to be parked for extended intervals.Prevents the air suspension trying to self level.
I didnt take it as gospel,but took it onboard.
Andrew

Andy. I read in another thread a while ago about you getting a couple of batteries for nicks and they were rooted. Is this them?

Yep,I wont be putting them in the camper trailer
The good one gets used regularly in the shed as a 12V source,its good but I wont use it in the trailer.
Andrew

Andy I can't see the pic well enough on my screen to understand what happened ?!?

One of my highly dodgy van batteries died when it was on charge over winter - I noticed because the C-Tek had ceased charging and displayed a fault. Upon testing one of them was utterly cactus and the other was ok. So I got two new matching ones (and redid a bunch of the van wiring / charging system) as I've been planning to do for ... er ... some time.