Reddit reviews CTEK (56-864) MUS4.3 12 Volt Fully Automatic 8 Step Battery Charger,Black
We found 6 Reddit comments about CTEK (56-864) MUS4.3 12 Volt Fully Automatic 8 Step Battery Charger,Black. Here are the top ones, ranked by their Reddit score.
Fully automatic charging and maintenance in 8 steps maximizes battery life and performanceWater and dust resistant means it is safe to use in all climate situationsNo sparks, short-circuit proof and reverse polarity protected makes it safe for all the vehicles electronics and easy to usePatented maintenance charge for a unique combination of maximized life and performanceNumerous accessories simplifies using the same charger for multiple battery applications
This is what I have. It's the same as the official one sans the branding.
I'd leave it indoors, and preferably hook it up to a battery maintainer like a CTEK MUS 4.3.
I had a 335i that was subject to the Takata recall and I had to park it until the replacement airbag arrived (literally, NO miles allowed). That translated into almost 6 months of the car not moving, so I was looking for a battery maintainer to use while it sat.
BMW has a similar offering to the Charge-O-Mat, with similar pricing, but both are made by CTEK. I just went and bought the CTEK MUS 4.3 for quite a bit less and it performed flawlessly. I now use it to maintain the battery on my Cayman in between drives.
At this point I have over 18 months of daily use on it and nary a hiccup. I even accidentally hooked up the terminals backwards a couple of weeks ago and it simply threw an error. I corrected my mistake and it started charging as normal.
It looks like Amazon has it on sale:
https://www.amazon.com/CTEK-56-864-Automatic-Battery-Charger/dp/B006G14FK8
I really like CTEK chargers. We have a few of these for cars and boats in storage: https://www.amazon.com/CTEK-56-864-Automatic-Battery-Charger/dp/B006G14FK8
I bought a CTEK a year or so ago and haven't regretted it. Instead of buying a car battery every time it breaks simply restore it using this. Batteries will die very quickly in cold weather, I haven't experienced a winter yet in Bend but I get the feeling having a dead battery is common if you don't run your car for a few weeks.
https://www.amazon.com/gp/product/B006G14FK8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
I also have a portable battery in my trunk, if my battery ever dies I can just hook it up and jump start it. You can also use it to charge electronic devices in emergency situations. I don't recall what thats called, I got it from Autozone.
Hope it helps.
I have this one it works great
CTEK (56-864) MUS4.3 12 Volt Fully Automatic 8 Step Battery Charger https://www.amazon.com/dp/B006G14FK8/ref=cm_sw_r_cp_api_qIkUBbTWPPZJ1