1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Battery charger on lead-acid vs. AGM?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Caydoc, Jan 31, 2013.

  1. Caydoc

    Caydoc Junior Member

    Joined:
    Jul 2, 2011
    32
    1
    0
    Location:
    Savannah, GA
    Vehicle:
    2011 Prius
    Model:
    Two
    ...just bought a CTEK 3300 charger/maintainer for my 2012 Prius, after seeing this brand and model mentioned favorably on this forum...the device's instructions emphasize it is to be used only for lead acid batteries, but I think our 12v is an AGM...can I use it safely? Thanks for an answer!
     
    #1 Caydoc, Jan 31, 2013
  2. ny_rob

    ny_rob Senior Member

    Joined:
    Feb 28, 2012
    1,968
    813
    0
    Location:
    L.I.- NY
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Our 12v battery is lead-acid- but of AGM design which means it's low gassing and has a wet sponge type material (rather than sloshing liquid) between the lead plates.
    According to the 3rd bullet-point (under Product Features) at Amazon- it does support AGM batts:
    CTEK 3300
     
    #2 ny_rob, Jan 31, 2013
  3. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,723
    38,253
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Geesh, I likely led you astray, never noticed that. I've used my CTEK 3300 on ours somewhere between 5 and 10 times. Never for a serious discharge so far, just as periodic top-up. Voltage seems to be staying steady, and no problems.

    I think ny-rob's right, that AGM is under the umbrella definition of lead-acid battery.
     
    #3 Mendel Leisk, Feb 2, 2013
(You must log in or sign up to post here.)