Monster battery too much drain on charging system?

Discussion in 'Hacks' started by GearHeadGrrrl, May 8, 2018.

  1. pagomichaelh

    pagomichaelh Been here awhile

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    #41
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  2. kcomst

    kcomst Adventurer

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    Yuasa is junk now made in China, no better than the $25 batteries on ebay. They continue to sell for a high price because of the illusion that they're still made in Japan. I had one a few years ago that died after one season. Have tried batteries from $20 to $25, had two that lasted one season and two that are still going after two seasons of riding.
    #42
  3. Steve 1

    Steve 1 Adventurer

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    #43
    rg sw wa. likes this.
  4. Strong Bad

    Strong Bad Former World's Foremost Authority Supporter

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    Hahaha! Too many people around here with enough knowledge to be more than a little dangerous about a shit load of different subjects! Some seem have moderately strong opinions too!
    #44
    rg sw wa., davebig and Bobmws like this.
  5. concours

    concours WFO for 47 years

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    No.
    #45
  6. Prmurat

    Prmurat Long timer

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    Why don't you move to a place where heat is in between 85F and 110F 4/6 months a year and, the, we can have a discussion????
    #46
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  7. GearHeadGrrrl

    GearHeadGrrrl Long timer

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    I have a better solution... I head north for the summer!
    #47
  8. concours

    concours WFO for 47 years

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    Why don’t explain why you think YOUR CLIMATE is soooooo speshul, it impacts sealed AGM battery life.
    #48
  9. FLYING EYEBALL

    FLYING EYEBALL out of step

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    :nono
    #49
  10. Prmurat

    Prmurat Long timer

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    For the same reason a battery here is guaranteed only one year .... next ? ( maybe more intelligent if possible).


    Sent from my iPhone using Tapatalk
    #50
  11. pagomichaelh

    pagomichaelh Been here awhile

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    AGM, or advanced glass matt technology, was a brand specific (Concord?) name for a valve regulated, starved electrolyte, lead-acid battery.

    On a flooded battery, you can adjust the specific gravity of the electrolyte (sulphuric acid) to decrease the corrosion of the plates induced by higher temps (opposite is true as well, btw) when first add the electrolyte to the cells.

    This will also change the nominal terminal voltages, so that needs to be compensated for in the charging circuit(s).

    An 'AGM' battery, being 'mostly' sealed, the specific gravity of the electrolyte is what the manufacturer of the battery deems to be the mean temperature of the target market. Variations from that mean results in decreased life from corrosion.

    You could get 'silly' and have a a/c unit to cool the battery when operation, with a plug in for when it's parked (think the opposite of a dipstick heater)..... :)
    #51
  12. concours

    concours WFO for 47 years

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    The part you leave completely out, is, that temperatures in the engine bay on cars with AGM's, and various powersports applications, (ATV. PWC, Snowmobile) and motos, is a wide range. The "warm climate" variable regarding batteries is a holdover from a bygone era.
    #52
  13. pagomichaelh

    pagomichaelh Been here awhile

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    Chemistry rules don't change.
    #53
  14. FLYING EYEBALL

    FLYING EYEBALL out of step

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    [​IMG]
    #54
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  15. Prmurat

    Prmurat Long timer

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    This is so funny: I lived in Dubai for 3 years= 3 batteries in the HD, 2 on the Vmax, 3 years in Hong Kong= 2 batteries, one on each bike. While living in “normal countries” batteries, used to live between 5 and 7 years... arriving in AZ they now die one after the other (no AC in the garage) and it looks like it happening to everyone in our club.... but, as usual, on any forum, personal experience is not a valid point to the the self proclaimed specialists. A rapid internet search will prove this too.


    Sent from my iPhone using Tapatalk
    #55
  16. pagomichaelh

    pagomichaelh Been here awhile

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    Guilty your honor! :)
    #56
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  17. Steve 1

    Steve 1 Adventurer

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    I mounted this under my seat , hooked it permanent to the battery and just plug it into an extension cord, it will stay charged all winter if I remember to plug it in, voltmeter on bike always shows about 13.5 volts .I noticed it will cycle on about every 20 minutes for about 3 minutes and does not over charge my GEL battery almost four years that I bought from Batterysharks for $30.It was cheap too. https://www.amazon.com/gp/product/B00TTLSJ0E/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1.[​IMG]
    #57
  18. RAGrote

    RAGrote Fishin w PICO

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    There are consequences to slow charging a deep cycle. I'd ask the manufacturer whose battery you're thinking of using.... Just me.
    #58
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  19. Johann

    Johann Long timer

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    From the boaty world where banks were often cheapo 12v FLAs there is also a consequence to overcharging. In the real world for leisure batteries it is always a compromise between what is the absolute ideal charging regime and what will get the batteries charged in the time needed.

    http://www.smartgauge.co.uk/chargesize.html
    #59
  20. ghedunk

    ghedunk Been here awhile

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    If you have this hard wired to to your bike it is discharging your battery when unplugged . Every charger I have oun has a amps discharge to the charger if you leave it hooked to the battery .
    #60
    brstar likes this.