Best CTEK Battery Charger/Maintainer for garage

Discussion in 'The Garage' started by alexk243, Nov 7, 2019.

  1. alexk243

    alexk243 Been here awhile

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    Looking to spend some money and upgrade the winter maintainers and chargers I have in my garage. There are too many CTEK options out there so looking for advice on which is the best. Speed/quick charging is never needed and is mostly for maintaining batteries over the winter or vehicles that are not being used.

    I am charging everything from lead acid car batteries, to deep cycle agm batteries, to jetski/motorcycle batteries and lithium motorcycle batteries.

    Any suggestions on which charger is the best would be helpful.

    Thanks!
    #1
  2. Exurban

    Exurban Been here awhile

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    Among the CTEK it looks like you’d need two, one for lead acid batteries and one for lithium. If you want just one charger, might want to look at Noco. They have models that do lead acid and lithium charge profiles. The 3500 might be a good all-purpose choice depending on the size of the deep cycle batteries. I have both brands and satisfied with both although I think CTEK might have a more fine tuned charge profile. The MXS 5.0 for example has a desulphate phase at 14.4 v and a reconditioning phase at 15.8v, something many of the smaller chargers don’t have.

    I have a CTEK 0.8 for motorcycle batteries and a Noco 26000 for 255ah 8D batteries. I don’t presently have any lithium batteries.
    #2
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  3. Happy Snapper

    Happy Snapper GOMOB.

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    Ctek MXS5 is what I use. One for the GSA and one for the bride's BMW Z4.

    Being an old auto electrician.... I don't trust the bastards and run both of these via timers.

    Just come on at night and run for about 5 hours...... the last Z4 battery lasted 9 years doing this.

    Good stuff.
    #3
  4. alexk243

    alexk243 Been here awhile

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    Ah, didn't realize there needed to be a different charger for the lithium battery. It came with the BMW F650GS from the previous owner, but all my other jetskis/motorcycles have lead acid batteries... I dont pull the lithium from the bike in the winter though, just run it from time to time and I am guessing that it does not need as much maintenance as the other batteries.

    If I forget the lithium battery then, is the best charger for the deep cycles and motorcycle/jetski/car batteries the CTEK MXS5 (this one: https://amzn.to/33RRoS0)?
    #4
  5. svtride

    svtride Been here awhile Supporter

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    I have a half a dozen or so of the CTEK 3300 (56-158) https://www.amazon.com/dp/B000FQBWCY/ref=psdc_15707061_t1_B00CD44RQO for my various vehicle batteries. Cars, motorcycles, generator. Been using them for over 15 years and have never had an issue with any when maintaining lead acid batteries (flooded, AGM, or gel). I got 9.5 years out of a battery in a car that was maybe driven 500 miles a year. I live in SE MI so my cars sit for 5-6 months through winter in my shop with only the CTEKs hooked to them, 24/7. Come spring they always fire right up.
    I bought a bike this summer that came with a LIFePO4 battery so my CTEKs won't work for it. Lithium batteries charge to a reduced voltage vs. lead acid types. So I bought a Optimate maintainer https://www.amazon.com/gp/product/B00Y38X7WI/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 based on what my Honda dealer had. Too soon to say how it performs.

    I am satisfied with CTEK maintainers. I recommend. I set them and forget them.
    #5
  6. alexk243

    alexk243 Been here awhile

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    So I went ahead and purchased the CTEK MXS 5.0 ( https://amzn.to/35Pz7oW ) and I am trying it out now. Question for those of you who have used it. I have about 3 small motorcycle/jetski batteries that are in winter storage. Should I be doing the recondition mode with all of them at least once in the winter? Is there anything else I need to do besides press the recondition button?
    #6
  7. Exurban

    Exurban Been here awhile

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    A battery shouldn’t need a reconditioning charge unless it’s been abused, discharged excessively or showing loss of capacity from age. I don’t think doing it to a good battery just for winter storage will have any benefit.
    #7
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  8. Coma

    Coma Long timer Supporter

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    Agree. I’ve used a Battery Minder on everything up to now. I bought the CTEK MX5 for the X5 because it doesn’t fully charge battery :baldy

    Set and forget.
    #8
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  9. rsuarez

    rsuarez Adventurer

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    I always thought that LiPo batteries have internal voltage controllers to avoid overcharging or over draining. That's really the trick to LiPo. Otherwise, how are they managing the charge from the bike itself?
    #9
  10. Exurban

    Exurban Been here awhile

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    I don’t know the details but, looking at Anti-Gravity’s FAQs, they say the bike alternator is fine. They are also quite clear that a normal stand alone charger like a BT should not be used. So yes, there must be a need for stand alone chargers that are specific to lithium chemistry.
    #10
  11. Yellow Pig

    Yellow Pig Allergic to asphalt! Supporter

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    Optimate has a dual charger that will do AGM and LiPo
    #11