Recommendations for Battery Maintainer / Trickle Charger?

dszpiro · 02-15-2023, 04:43 PM

I don't drive my 2022 M240iX very much (5,000 miles in 15 months) and I often have it sitting in the garage for a week or more while I travel. My dealer has told me that some of the minor electrical system glitches I've been experiencing are due to my battery not being at the right level of charge because of low use.

The dealer recommended using a battery maintainer device. He showed me what they use in the dealership: The Noco Genius G3500. I checked with Noco: that model has since been discontinued and replaced with the GENIUS5.

I was wondering if anyone here has experience with maintaining a battery charge with such a device and could make any recommendations about best practice and useful devices?

vector29 · 02-15-2023, 06:04 PM

BMW sells a couple of trickle charger battery maintainers. This one can charge both AGM/lead-acid and lithium-ion batteries just in case you ever add a M3/M4 to your stable.

BMW Advanced Battery Charging System with Alligator Clips

dszpiro · 02-15-2023, 08:08 PM

Quote:

Originally Posted by vector29

BMW sells a couple of trickle charger battery maintainers. This one can charge both AGM/lead-acid and lithium-ion batteries just in case you ever add a M3/M4 to your stable.

BMW Advanced Battery Charging System with Alligator Clips

Thanks!

winter.zed · 02-16-2023, 12:10 PM

Or this:
https://g42.bimmerpost.com/forums/sh...21&postcount=5

wb8164 · 02-16-2023, 03:41 PM

I've had good luck with the Battery Tender Jr. It gets the job done with no issues. It's $45.00 on Amazon.

KevinC · 02-16-2023, 05:17 PM

Genius is great but that model is overkill. Just get the little Noco One. Used on my Z4M and does a fantastic job. Also it’s tiny.

Ruebarb · 02-27-2023, 08:11 AM

Quote:

Originally Posted by dszpiro

I don't drive my 2022 M240iX very much (5,000 miles in 15 months) and I often have it sitting in the garage for a week or more while I travel. My dealer has told me that some of the minor electrical system glitches I've been experiencing are due to my battery not being at the right level of charge because of low use.

The dealer recommended using a battery maintainer device. He showed me what they use in the dealership: The Noco Genius G3500. I checked with Noco: that model has since been discontinued and replaced with the GENIUS5.

I was wondering if anyone here has experience with maintaining a battery charge with such a device and could make any recommendations about best practice and useful devices?

I use a few GENIUS5 for a few different applications, works great

dszpiro · 02-28-2023, 08:49 PM

Quote:

Originally Posted by Ruebarb

I use a few GENIUS5 for a few different applications, works great

Thanks for the endorsement / confirmation!

02-15-2023, 04:43 PM	#1
dszpiro Private First Class 54 Rep 147 Posts Drives: 2022 M240iX Join Date: Nov 2009 Location: Ithaca NY iTrader: (0) Garage List 2022 BMW 330iX [0.00] 2022 BMW M240iX [0.00]	Recommendations for Battery Maintainer / Trickle Charger? I don't drive my 2022 M240iX very much (5,000 miles in 15 months) and I often have it sitting in the garage for a week or more while I travel. My dealer has told me that some of the minor electrical system glitches I've been experiencing are due to my battery not being at the right level of charge because of low use. The dealer recommended using a battery maintainer device. He showed me what they use in the dealership: The Noco Genius G3500. I checked with Noco: that model has since been discontinued and replaced with the GENIUS5. I was wondering if anyone here has experience with maintaining a battery charge with such a device and could make any recommendations about best practice and useful devices? __________________ BMW #9: 2022 M240ix (Dec 2021) BMW #8: 2022 330iX (Dec 2021) Past: 320iX, M550iX, M235iX, 335iX, two Z4, 540i
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02-15-2023, 06:04 PM	#2
vector29 New Member 3 Rep 14 Posts Drives: 2014 F13 M6 CP Join Date: Nov 2013 Location: San Antonio, TX iTrader: (0)	BMW sells a couple of trickle charger battery maintainers. This one can charge both AGM/lead-acid and lithium-ion batteries just in case you ever add a M3/M4 to your stable. BMW Advanced Battery Charging System with Alligator Clips Last edited by vector29; 02-15-2023 at 06:09 PM..
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02-16-2023, 12:10 PM	#4
winter.zed Private First Class 104 Rep 142 Posts Drives: Boxster 718/982 Join Date: Dec 2016 Location: Toronto (North of...) iTrader: (0)	Or this: https://g42.bimmerpost.com/forums/sh...21&postcount=5 __________________ '17 - Boxster 6SP/SSK/Brombacher '23 - Polestar 2 '23 - M240 xDrive (winter car)
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02-16-2023, 03:41 PM	#5
wb8164 Private First Class 129 Rep 128 Posts Drives: BG 230i Join Date: Jan 2023 Location: North NJ iTrader: (0)	I've had good luck with the Battery Tender Jr. It gets the job done with no issues. It's $45.00 on Amazon.
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02-16-2023, 05:17 PM	#6
KevinC your average JAMF 3101 Rep 4,094 Posts Drives: '21 M2 Comp, '19 Golf R Join Date: Oct 2005 Location: Cochise County, AZ iTrader: (0) Garage List 2019 VW Golf R [0.00] 2021 BMW M2 Competi ... [0.00]	Genius is great but that model is overkill. Just get the little Noco One. Used on my Z4M and does a fantastic job. Also it’s tiny.
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