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Dead battery after leaving on CTEK, new battery & CTEK ?

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YOUR RESEARCHDead battery after leaving on CTEK, new battery & CTEK ?

Leading reported evidence

Disconnect ctek

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Unsuccessful attempts: 1
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Suggestion
...it helps having the battery in the front though as several times I drove the Merc out of the garage ripping the socket off the wall because I forgot to disconnect the ctek
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Dead battery after leaving on CTEK, new battery & CTEK ?

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Leading evidence: 'Disconnect ctek' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect ctek' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use trickle charger this would happen

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Suggestion · Original poster
Any idea why after religiously using the trickle charger this would happen ?
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Dead battery after leaving on CTEK, new battery & CTEK ?

Frequently discussed actions (2)

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Disconnect ctek

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
...it helps having the battery in the front though as several times I drove the Merc out of the garage ripping the socket off the wall because I forgot to disconnect the ctek
Original post Read captured discussion
Dead battery after leaving on CTEK, new battery & CTEK ?

Use trickle charger this would happen

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
Any idea why after religiously using the trickle charger this would happen ?
Original post Read captured discussion
Dead battery after leaving on CTEK, new battery & CTEK ?

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

911uk: 1 discussions

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Generation: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My car gets driven perhaps once every few weeks. Between drives it gets left connected to a Ctek trickle charger. The lights on the Ctek are always all on by the time it comes to disconnect it and go for an enjoyable hour long blast. I decided to leave it connected all the time after leaving it just parked for a week normally, resulting in it needing a jump start. All had been going fine until several months later.... This week, I went to start the car as per usual, but the car just did a half of a turnover followed by loads of clicking. The Ctek was showing all the lights illuminated as per normal prior to me disconnecting it. Any idea why after religiously using the trickle charger this would happen ? I have now put a new battery in the car. Should I put the trickle charger back on all the time as per above with this new battery, or not agood idea for this new battery with a 5 year guarantee ?? Thanks for any good advice on how best to keep this new battery in good shape.

POST 2Original post

...I've had the same issue with a Ctek and my merc sl thus now with the one connected to my 996 I turn it off and on every week or so...seems to solve the issue... ...it helps having the battery in the front though as several times I drove the Merc out of the garage ripping the socket off the wall because I forgot to disconnect the ctek

POST 3Original post

My wife did that to one of our cars, to be fair I hadn't told her it was plugged in and thankfully the cord broke at the plug socket so it was easy enough to re-wire the plug.

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