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Costco GC Batteries now in stock

Discussion in 'Ask A Macgregor Owner' started by Macboy, Mar 13, 2018. Add this thread to a FAQ

  1. Macboy


    Joined Aug 8, 2014
    194 posts, 9 likes
    Macgregor 26S
    CA Sherwood Park, Alberta
    I just returned from Costco with two 6V, 200+Ah batteries for a whopping $140 each. Ten dollars for the core but I have two to take back to them so I'll get that back. Not bad at all - especially if they do what I hope they do for our little Mac.

    And then I saw this USB power pack gizmo touted as an Emergency Car Starter/Jumper Pack for $70. I grabbed it brought it home so I could get some help with the math from you all. It says the capacity is "Up to 8000mA (3.7V)". It has two USB output charge ports, one 2.4A & one 2.1A and a 12V Jump Start circuit with a start current of 200-350A. Would this serve as emergency peace of mind for me deciding to forego a dedicated starter battery? Well, not peace of mind....but it'd save me the removal of the four screws covering the emergency pull start on the engine.

    Or should I take it back?

    Tom J likes this.
  2. shemandr


    Joined Jan 1, 2006
    3,158 posts, 366 likes
    Marblehead Skiff 14'
    US Greenport, NY Greenport, NY
    I don't really know about the value of those batteries but I hope they are as good as it sounds.
    Regarding the power pack, I have one I keep in my car. Actually I bought it for my last car which had battery issues. I drove that car until just before the wheels fell off. The battery pack has started that 6 cylinder engine with ease. I try to take it on the boat because my batteries are suspect which I will address when my charging system is upgraded. I'm not ready to declare that the battery pack can replace a dedicated starting battery but I am starting to think it can. It's a lot easier to maintain.

  3. Benny17441


    Joined May 24, 2004
    5,290 posts, 279 likes
    CC 30
    US South Florida
    Pricey batteries. I would prefer two group 27 12V 105 amps ea. which can be used independently or combined and a replacement could be easily procured almost anywhere. The battery pack is a good idea and a portable source of power. We carry one on trips.

  4. Macboy


    Joined Aug 8, 2014
    194 posts, 9 likes
    Macgregor 26S
    CA Sherwood Park, Alberta
    Ha! Not pricey really.....that was $140 Canadian. For you guys it'd be about $60! ;)

    Allan12210 likes this.
  5. jeepbluetj


    Joined Jan 18, 2016
    404 posts, 106 likes
    Catalina 30
    US SoCal Dana Point
    Best bang from the buck is 2 GC FLA batteries. They're far better with deep discharges than the more typical 'marine' dual-purpose battery. The much larger plate area causes them to last longer. And generally more AH capacity - a pair of GC2's is 220-240 depending on the battery. The last set I bought at costco was 220. You can get a replacement anywhere in the world that there are golf courses.

  6. Sumner


    Joined Jan 31, 2009
    5,022 posts, 147 likes
    Macgregor 26S/Endeavour 37 .
    US Utah's Canyon Country
    I've found that true in Florida. I bought Trojan T-105's a couple years ago for about $92 each and this year got 4 at $105 each at a Batteries To Go in Englewood, FL,

    1300 miles to The Bahamas and Back in the Mac...
    Endeavour 37 Mods...

    MacGregor 26-S Mods...
    Mac Trips to Utah, Idaho, Wyoming, Canada, Florida, Bahamas

  7. Allan12210


    Joined Jan 22, 2008
    1,375 posts, 122 likes
    Hunter 34
    US Alameda CA
    The old exchange rate trick I see. I thought they saw you coming. Reminds me of the time in college where we almost bought a refrigerator from the neighbor that cooled to 32 Degrees for $100. Then we found out it was Celsius.

    Macboy likes this.
  8. Tom J

    Tom J

    Joined Sep 30, 2008
    952 posts, 15 likes
    Catalina 310
    US Quincy, MA
    I was very happy to see the golf cart batteries at Costco. I bought four of them to build a backup battery bank for our little house in Hawaii. Surprisingly, they were somewhat cheaper than yours, maybe because you are in Canada?

  9. njlarry


    Joined Sep 23, 2009
    1,273 posts, 108 likes
    O'Day 34-At Last
    US Rock Hall, Md
    Those battery packs are worth their weight in gold. I have slightly larger Gooloo 10 amp gp37 model that is advertised for v 8s and small diesels. At our marina a mechanic used one on a big engines v 8 that started instantly. I'v used mine to start a 6 cyl several times without recharging the pack. The car battery was under 11 volts. I believe that it could start my diesel engine. Also can charge multiple phones multiple times.
    Be cautious about storing one in cold or hot conditions. They have been known to ignite. I think a lithium battery recently caught fire in the hold of a delta air flight.

    Last edited: Mar 15, 2018 at 7:18 AM

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