16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
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YOUR RESEARCHbattery rcomendations
Leading reported evidence
Disconnect thanks
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
i've put it on trickle with it disconnected, thanks for reply Richard.
Leading evidence: 'Disconnect thanks' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check diy next time' (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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Replace battery last week and agree its very heavy
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Performed · outcome unconfirmed
I changed my battery last week and agree its very heavy.
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Suggestion
No - you only have to switch the ignition on if you disconnect the battery to stop the alarm going off.
Disconnect battery, make sure you have the radio code
Suggestion or failed attempt
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Suggestion
Also, if you disconnect the battery, make sure you have the radio code.
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.
16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
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Generation: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I may need a new one! I went to the garage this morning the doors opened ok, the lights and radio came on but just clicking and both side windows going up and down!!
If it is the battery anyone changed recently if so what cost and type.
Cheers Chris.
Bosch Silver Series S5 - currently £52.94 inc VAT at Costco (i paid £25 on offer a few months ago)
Alternatives - Varta Blue, about £100 from tyre depots, or Halfords do their own brand with 4yr warranty for £100.
Fast reply lads, cheers.
Thanks for the info ref turning on ignition to stop the alarm going off! I may have left something on in the car so i was going to try and trickle charge first. Do i leave the ignition on say overnight while the i charge, i know it sounds like a silly question!
Again thanks for the reply pus the heads up on the offer at Cosco.
Chris
No - you only have to switch the ignition on if you disconnect the battery to stop the alarm going off. Leave the battery connected while you trickle charge.
Also, if you disconnect the battery, make sure you have the radio code.
Like it says in the DIY - S5 010. This is the 85Ah version. I have the 75Ah on mine (S5 007) but that's only because I had it 'in stock' when the original died on me.
With the engine running a multimeter across the battery terminals should read around 13.4-13.8V - its the alternator working flat out to recharge the battery. Switch the engine off and you will probably see 11V across the terminals and this will fall slowly even without any consumers on (ie lights, radio etc). You have the luxury of a voltmeter in the dashboard, the Boxster doesn't
I'd advise you to change the battery fairly quickly - running the alternator flat out for hundreds of miles will do it no favours at all.
Fitting a non Porsche battery may/will invalidate the new warranty scheme if this applies to you - Porsche want about £160 for the battery for DIY fit, about £280 fitted. Its a heavy item to lift out on your own - i changed mine using a bar through the handles and a person either side to lift the bar.
Costco MK seem to have sent all the S5 010 batteries back for reasons unkown. Had a right pain in the arse with this problem a few week ends ago. Ended up with the Halfords battery. Those saying it's a bugger getting the old battery out are right. I almost gave myself a hernia! Will remember the bar trick for next time.
You will also need an extension bar on your socket to reach the bolt for the battery clamp.
I changed my battery last week and agree its very heavy. BUT, i put a rug in the boot, put 2 short planks in it, stood on them and the job was immesurably easier.
