09-24-2023, 03:05 AM | #1 |
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Battery Terminals under hood
I'm trying to install the ctek battery charger eyelet cords and was wondering when removing the terminals under the hood do I need to remove them in a certain order or do I need to disconnect the battery before doing so? I'm hoping not to have to disconnect battery and just unscrew the negative post first then the positive post and connect in reverse order.
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09-24-2023, 03:19 AM | #2 |
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why would the order matter? Aren't they an open lead until you plug them into the ctek?
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09-24-2023, 04:03 AM | #3 | |
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09-24-2023, 07:07 AM | #4 |
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09-24-2023, 07:18 AM | #5 |
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09-24-2023, 07:21 AM | #6 |
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Those photos don't seem to be connecting to the terminals under the hood like the original question was intended. I've read multiple places not to hook straight to the battery and my owners manual states specifically to charge and/or jump from the terminals under the hood. Connecting directly to the battery bypasses the ibs and can potentially cause issues.
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09-24-2023, 07:27 AM | #7 |
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Looking at your image, you are not connected correctly. (??) You do not have the IBS in the charging circuit.
Front connections, we are charging as intended, keeping the energy management in the loop, allows for correct charging in use. |
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09-24-2023, 07:30 AM | #8 |
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You don't need to remove either cable. Just the nut, place eye ring connector on post and reinstall the nut.
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09-24-2023, 07:38 AM | #9 |
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Interested for future responses.
In my previous vehicles I’ve always hooked it up directly to the Battery and still doing it to this day without any issues. |
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09-24-2023, 07:46 AM | #10 | |
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09-24-2023, 07:51 AM | #11 |
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09-24-2023, 07:58 AM | #12 |
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09-24-2023, 08:09 AM | #13 | |
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Within 5 sec. and one connector click , my CTEK is ready to charge .. My CTEK connector kit is permanently connected to my battery .Got 'Zero issues like this in the last 10 years , CTEK is the smart battery tender
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09-24-2023, 08:20 AM | #14 | |
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That's how I charge my battery in the last 10 years . It couldn't be easier
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09-24-2023, 08:31 AM | #15 | |
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The cable connector kit came with my CTEK battery tender to use it. I'm pretty sure CTEK knows it better than us .
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09-24-2023, 08:37 AM | #16 | ||
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09-24-2023, 10:26 AM | #17 | |
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To be clear, you don't *have* to connect to the charging posts under the bonnet/hood, but it's a simple way to be sure that the IBS is in the charging circuit. In response to the original question, it shouldn't matter at all which you disconnect first, and you shouldn't need to disconnect the battery beforehand - just make sure any loose positive wires can't short out on the body/block/etc. Last edited by Tambohamilton; 09-24-2023 at 10:50 AM.. |
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09-24-2023, 11:46 AM | #18 |
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I ran the cable out to under the hood/windshield and don't have to pop the hood/trunk to connect the Charger.
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09-24-2023, 03:30 PM | #22 |
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FYI: Info from BMW (as others mentioned above) to not hook up directly to the battery if your BMW has an IBS (intelligent battery sensor)…because there are multiple components that communicate with each other in regard to the vehicle’s charging system.
But everyone has the right to do with their vehicle as they wish…but to those that didn’t know…BMW does not recommend bypassing the IBS.
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