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      04-03-2020, 06:07 PM   #111
hC1001
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I've been happy with The battery tender charger. https://www.batterytender.com/Batter...-12V-4A-Select

It was the cheapest option($50 from costco) and i've used their other products in the past with positive results.
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      04-05-2020, 08:59 PM   #112
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Quote:
Originally Posted by espressoo View Post
I assume this NOCO would work as well? There's a couple of different versions and amp ratings but at 5A it's close to the CTEK 4.3A. Anyone use or have the Genius5?

https://no.co/genius5

I bought this recently and it works great.
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      04-07-2020, 10:34 AM   #113
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+1 for Noco. Have used G7200 for a few years.
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      10-12-2020, 02:28 AM   #114
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There seems to be another BMW branded charger besides the BMW branded ctek one (part# 61432408594)

part # 82110087135
https://www.getbmwparts.com/oem-part...b3J5IFBhZ2U%3D

I just tried the NOCO Genius 5, but it doesn't seem to work properly. It stops working with 'over voltage' warning. Scary.
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      10-23-2020, 10:32 PM   #115
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I'm using NOCO G7200 and it is doing great so far.
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      11-06-2020, 05:54 PM   #116
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The Battery Tender 4.5A exclusive to Costco is $35 in the store. I just grabbed one today.
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Last edited by Ray Khan; 11-30-2020 at 09:23 PM..
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      11-29-2020, 04:15 PM   #117
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Just grabbed the one from Costco. Can't beat $35.
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      12-07-2020, 10:52 AM   #118
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Quote:
Originally Posted by Ray Khan View Post
The Battery Tender 4.5A exclusive to Costco is $35 in the store. I just grabbed one today.
Thanks for the recommendation; got it for $44 @ Costco Online. Brand website had the same one for $79 and they were unavailable.
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      12-08-2020, 02:41 PM   #119
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Quote:
Originally Posted by MyFragileHalogen View Post
There seems to be another BMW branded charger besides the BMW branded ctek one (part# 61432408594)

part # 82110087135
https://www.getbmwparts.com/oem-part...b3J5IFBhZ2U%3D

I just tried the NOCO Genius 5, but it doesn't seem to work properly. It stops working with 'over voltage' warning. Scary.
Interesting...I used my Genius 5 today with no issues.
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      01-06-2021, 09:17 PM   #120
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Schumacher maintenance charger

I have for about 3 years now used the Schumacher SP1297, and the prior model before that for years as well. The SP1297 is selectable for lithium or AGM which includes lead acid. I have 3 in use now with zero problems, itís a great charger that switches automatically to maintenance mode. Costs about $70 and Schumacher is offering 15% off on their website.

https://www.batterychargers.com/en/products/battery-chargers/sp1297-3a-12v-automatic-battery-chargermaintainer[/url]
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      01-07-2021, 01:39 PM   #121
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Another CTEK user here
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      01-12-2021, 01:32 PM   #122
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For those using the Battery Tender 4.5A, is there a big difference besides price in comparison to the CTEK 56-926 model? Or does it work perfectly well for our vehicles to maintain the battery?
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      02-05-2021, 09:47 AM   #123
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Quote:
Originally Posted by MyFragileHalogen View Post
There seems to be another BMW branded charger besides the BMW branded ctek one (part# 61432408594)

part # 82110087135
https://www.getbmwparts.com/oem-part...b3J5IFBhZ2U%3D

I just tried the NOCO Genius 5, but it doesn't seem to work properly. It stops working with 'over voltage' warning. Scary.
ugh.

I looked it up. Lithium mode on Genius 5 is 14.6V. The red terminal under the hood of the F80 says max 14.4.
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      02-05-2021, 11:42 AM   #124
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Quote:
Originally Posted by KeoniM3 View Post
For those using the Battery Tender 4.5A, is there a big difference besides price in comparison to the CTEK 56-926 model? Or does it work perfectly well for our vehicles to maintain the battery?
No issues all winter.
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      02-05-2021, 12:27 PM   #125
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Quote:
Originally Posted by KeoniM3 View Post
For those using the Battery Tender 4.5A, is there a big difference besides price in comparison to the CTEK 56-926 model? Or does it work perfectly well for our vehicles to maintain the battery?
Working flawlessly. Plug it in and it knows which battery type to charge.
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      02-16-2021, 03:05 PM   #126
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Quote:
Originally Posted by MyFragileHalogen View Post
There seems to be another BMW branded charger besides the BMW branded ctek one (part# 61432408594)

part # 82110087135
https://www.getbmwparts.com/oem-part...b3J5IFBhZ2U%3D

I just tried the NOCO Genius 5, but it doesn't seem to work properly. It stops working with 'over voltage' warning. Scary.
My NOCO 5 also stops working and the trunk opens automatically when the charger trips.
Ended up buying a CTEK
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      05-28-2021, 04:42 PM   #127
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If someone who knows this topic would the costco one of:

https://www.costco.com/battery-tende...100679769.html

work well enough? I would like to just charge up my battery sometimes to make sure its all good. I do not need a $1500 bill for a new battery lol

Or should I bite the bullet and get the BMW one?
https://www.ecstuning.com/b-genuine-...r/61432408594/

I would like to plug in my battery and charge it since its 5 years old and just top it off once.. I drive my car 1-2 times a week
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      05-28-2021, 04:48 PM   #128
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Looking at the BMW one, it looks like it would work for regular car batteries as well? I would like to use it for my Jeep Wrangler as well, so that might be a better option?




Quote:
Originally Posted by petar7408 View Post
If someone who knows this topic would the costco one of:

https://www.costco.com/battery-tende...100679769.html

work well enough? I would like to just charge up my battery sometimes to make sure its all good. I do not need a $1500 bill for a new battery lol

Or should I bite the bullet and get the BMW one?
https://www.ecstuning.com/b-genuine-...r/61432408594/

I would like to plug in my battery and charge it since its 5 years old and just top it off once.. I drive my car 1-2 times a week
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      05-28-2021, 10:16 PM   #129
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Quote:
Originally Posted by petar7408 View Post
...
I would like to plug in my battery and charge it since its 5 years old and just top it off once.. I drive my car 1-2 times a week
Mentioned earlier in this thread, check this one out:
https://www.costco.com/duracell-4-am...100479359.html

Its cheap, and does lithium and standard/agm charging. Ive got it, works fine for me. I use it 95% of the time on a standard lead acid battery in my older car. Use it on the F80 every so often in winter if it sits for more than ~2-3 weeks. If you are driving 1-2x a week, you probably don't need to worry either way.
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      11-29-2021, 04:30 PM   #130
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Quote:
Originally Posted by pokerface View Post
ugh.

I looked it up. Lithium mode on Genius 5 is 14.6V. The red terminal under the hood of the F80 says max 14.4.
That sucks. I know they tried to improve the functionality for the revised Genius chargers, but this seems to make it not an option for cars like ours.

I have the older model Noco G7200 and in 12V LITHIUM mode it is rated at 14.2V, 7.2A, for 14-230Ah Batteries.
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