03-29-2020, 05:03 AM | #1 |
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Battery Charging.
Not using the car much has given me a low battery message prior to starting. It started ok but must be low. Am I ok to connect my Optimate to the jump terminals under the bonnet.
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03-29-2020, 06:16 AM | #2 |
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Put it on charge now seems ok. Youtube has a vid on what to do using a Ctek which is similar. Says Bmw s are heavy on battery use. Where is the battery is it in the boot.
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03-29-2020, 06:29 AM | #3 |
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The handbook certainly says to use the jump-start connections for charging:
"Recharge the battery only with the engine stopped, via the jump-starting connections, see page 230, in the engine compartment." |
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03-29-2020, 06:32 AM | #4 |
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Yes I saw that. My previous Tiguan was the same. My BMW Bike has a special Canbus charger you can use the external power sockets to charge otherwise my old Optimate needs to go directly on the battery or jump terminals.
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03-29-2020, 09:46 AM | #5 |
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Ours has only been driven once in the past 3.5 weeks and I’ve been charging it using my regular battery charger on the jump connections. All good. I believe the battery is in the engine bay, just hidden under some of the plastic covering.
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03-29-2020, 12:06 PM | #6 |
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I have a new CTEK MXS 5.0 battery charger that I had delivered on Friday from Halfords. Easy to set up and use and gives peace of mind that I can keep the battery up to scratch whilst mileage has virtually evaporated. I see it also seems to be more or less identical to what is badged BMW on their ebay store (more costly too).
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03-29-2020, 12:11 PM | #7 |
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Batteries still on charge. Forward and rear cameras are flashing now which are the first to shutdown when battery is low.
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03-29-2020, 01:24 PM | #8 |
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The battery is under the front scuttle (think that’s what it’s called) and very close to the jump start terminals. With the red terminal lifted to connect the charger I could see the top of the battery. I couldn’t see much except that it said, on top of the battery, ‘made in Korea’. It will, as I understand it, be an AGM battery, because they’re more suited to stop/start applications. The battery is also lifetime sealed. The only aspect I couldn’t ascertain is the battery capacity, although I would think it would be in the region of 70-90 amp hr. Follow the instructions carefully as to which terminal to attach a charger to first.
Last edited by oakey46; 03-29-2020 at 01:32 PM.. |
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03-29-2020, 01:52 PM | #9 |
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Have this one for my BMW motorbike for Canbus but not suitable for connection to cars power socket so would need to go to jump terminals and change to Standard.
https://www.amazon.co.uk/Optimate-4-.../dp/B073V39C6W
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03-29-2020, 03:34 PM | #10 | |
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I see your Optimate motorcycle charger receives what appear to be very good reviews on Amazon. Similar price to what I paid for the CTEK. |
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03-29-2020, 03:58 PM | #11 | |
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03-30-2020, 03:22 AM | #12 |
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watch out my friends. Not every battery on your cars is an AGM battery. Mostly they are not, for my experience. Me and many others X1 owners in Italy have this battery on their X1. In the pic you can see the battery I have. I got X1 18d steptronic built in January 2020. Always check your battery charger manual, before charge. My NOCO has 2 different charging programs for EFB (use normal 12V) and AGM. If you use AGM mode on efb battery with my charger, you can overcharge and damage the battery.
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03-30-2020, 05:42 AM | #13 |
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Q. What are the differences between EFB and AGM batteries? A. EFB batteries have been introduced as a lower tier option to AGM batteries in terms of performance and durability. EFB technology relies on improvements to existing flooded technology through the addition of Carbon additives in the plate manufacturing process. AGM batteries benefit from the inclusion of unique design features not found in wet-flooded batteries. These include glass mat separators, recombinant lid technology and higher pack pressures to facilitate improved cyclic lifespan. AGM batteries are better suited to meeting the demands of higher specification vehicles that include one or more of the following technologies: Start Stop, Regenerative Braking and Passive Boost. |
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03-30-2020, 06:01 AM | #14 |
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The Ctek and Optimate chargers are supposed to check the charge and change to a float charge when the battery is full and so do not overcharge.
Using an ordinary charger without this intelligence, I can see risks overcharging.
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03-30-2020, 06:44 AM | #15 | |
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I have not used my car for a week now - thanks to lockdown. I have put the car in the garage and connected my Lidl Intelligent charger which includes a float once the battery is charged. And the battery needs a really good charge as I have only done short journeys of 3 or 4 miles before lockdown. My mpg will go the wrong way now as I will only be moving car in and out of the garage to stop my winter tyres flat spotting. |
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03-30-2020, 07:03 AM | #16 |
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Seems mine is AGM
BMW X1 E84 - petrol engines: sDrive 20 i - with Start-Stop system xDrive 25 i xDrive 28 i - with Start-Stop system BRAND AND SERIES MODEL CAPACITY COLD CRANKING AMPS DIMENSIONS BASE HOLD-DOWN PRICE Bosch S5 AGM S5A 11 80 Ah 800 A 315x175x190 mm B13 More Exide AGM EK800 80 Ah 800 A 315x175x190 mm B13 More Varta Silver Dynamic AGM F21 80 Ah 800 A 315x175x190 mm B13 More For these engines, no matter if we have a Start-Stop system installed in the car, we should use batteries made in AGM technology. We choose batteries of dimensions: 315x175x190 mm. The parameters of these batteries are at least 80 Ah of a capacity and 800 A CCA (Cold Cranking Amps). All the batteries in the above list have the same capacity 80Ah and Cold Cranking Amps: 800 A. All of the above motors have a base hold-down B13. Thought this interesting, What are the differences between EFB and AGM batteries? A. EFB batteries have been introduced as a lower tier option to AGM batteries in terms of performance and durability. EFB technology relies on improvements to existing flooded technology through the addition of Carbon additives in the plate manufacturing process. AGM batteries benefit from the inclusion of unique design features not found in wet-flooded batteries. These include glass mat separators, recombinant lid technology and higher pack pressures to facilitate improved cyclic lifespan. AGM batteries are better suited to meeting the demands of higher specification vehicles that include one or more of the following technologies: Start Stop, Regenerative Braking and Passive Boost.
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Last edited by Beagler; 03-30-2020 at 08:49 AM.. |
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03-30-2020, 09:44 AM | #17 | |
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Just in case you weren't aware, the E84 petrol engines refer to the previous model X1 prior to the introduction of the current transverse mounted F48 series X1 in 2016. Those engines are quite different. |
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03-30-2020, 09:47 AM | #18 | |
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03-30-2020, 09:53 AM | #19 | |
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03-30-2020, 09:53 AM | #20 |
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Another point in the question is the AMPs of the battery. BMW seems to have AGM batteries of 80 or more ah. Smaller batteries are EFB only between the bmw branded batteries.
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03-30-2020, 09:57 AM | #21 | |
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