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  • bad battery?

    hi guys i was having trouble starting my bike it would barley crank over so i push started it to get home from work. i charged the battery up, it was showing 12.5 volts, i put it on the bike, turn on the igniton and the voltage drops to 8 volts (my headlight turns on with the ignition, no rlu) then i go to crank it over and all i get is a clicking sound and the voltage drops to 3 or 4. im thinking my battery is shot but want to confirm before i order a new one.

    thanks!
    1979 XS1100SF 37000km
    Green Dyna Coils
    Stainless Brake Lines

    1973 CB100
    kevXS

  • #2
    I would say you are correct. Go to the local Walmart or similar and you can get one for about $50.
    Life is what happens while your planning everything else!

    When your work speaks for itself, don't interrupt.

    81 XS1100 Special - Humpty Dumpty
    80 XS1100 Special - Project Resurrection


    Previously owned
    93 GSX600F
    80 XS1100 Special - Ruby
    81 XS1100 Special
    81 CB750 C
    80 CB750 C
    78 XS750

    Comment


    • #3
      just checked walmart, any idea which one I need?

      http://www.walmart.ca/canada-estore/...=Power+Sports#
      1979 XS1100SF 37000km
      Green Dyna Coils
      Stainless Brake Lines

      1973 CB100
      kevXS

      Comment


      • #4
        The only way I know is to lok for the one that is rated for 12V, matches the amp rating of the one I pulled out, and matches the post layout for our bikes. I am sure one of the more electrically inclined will have a much better selection process for you.
        Life is what happens while your planning everything else!

        When your work speaks for itself, don't interrupt.

        81 XS1100 Special - Humpty Dumpty
        80 XS1100 Special - Project Resurrection


        Previously owned
        93 GSX600F
        80 XS1100 Special - Ruby
        81 XS1100 Special
        81 CB750 C
        80 CB750 C
        78 XS750

        Comment


        • #5
          I know this is going to sound bad but use the little book with the battery display it really does actually cover the XS back to 1978. And when it says in the instructions to charge it REAALLY slow for up to 16 hours they really mean it. the reason why some of the guys i've met with problems after only having a new battery for a few months is some guy "at the store" put it on a quick charger and roasted it first time out of the box. the motor cycle battery is only able to handle the inrush current similar to what the alternator put out but if you overheat it on initial charge it'll never perform to optimum and likely it'll fail right away.
          Even a blind monkey gets the odd banana.

          1979 XS 1100 special (been down the PO trail and it was messy)

          Comment


          • #6
            yeah i have a 2 amp charger but the guy at the motorcycle store i just called said that 2amps is probably even a bit much. hes recommending that i buy a battery tender which they have on sale for $35 and keep in on all winter. any thoughts? if it makes my battery last a few more years it seems worth the investment
            1979 XS1100SF 37000km
            Green Dyna Coils
            Stainless Brake Lines

            1973 CB100
            kevXS

            Comment


            • #7
              This is the one I've been looking at. I haven't bought it yet because my SG isn't ready just yet.
              EverStart ES50N18LA3 (~$50 at walmart)
              Hi, my name is George & I'm a twisty addict!

              80G (Green paint(PO idea))
              The Green Monster
              K&N A/F, TC's fuse block, '81 oil cooler, TC's homemade 4-2 w/Mac Mufflers, Raptor 660 ACCT
              Got him in '04.
              bald tire & borrowing parts

              80SG (Black w/red emblems & calipers)
              Scarlet
              K&N A/F, TC's fuse block, WJ5, Shoei bags, Raptor 660 ACCT.
              Got her in '11
              Ready for the twisties!

              81H (previously CPMaynard's)
              Hugo
              Full Venturer, Indigo Blue with B/W painted tank.
              Cold weather ride

              Comment


              • #8
                Originally posted by kevxs View Post
                yeah i have a 2 amp charger but the guy at the motorcycle store i just called said that 2amps is probably even a bit much. hes recommending that i buy a battery tender which they have on sale for $35 and keep in on all winter. any thoughts? if it makes my battery last a few more years it seems worth the investment
                If you have a Harbor Freight near you, go there and get their battery maintainer, on sale now,

                http://http://www.harborfreight.com/...ger-42292.html

                Buy two, they are cheap, and put out less than an amp.
                DO NOT try to charge a battery that is low, they will burn out trying to charge it. If the voltage is 12.5, which a new dry charged battery should be, they will do the rest. CZ

                Comment


                • #9
                  Those little tenders are nice to have aroudn and good for the battery over the cold winter.
                  Life is what happens while your planning everything else!

                  When your work speaks for itself, don't interrupt.

                  81 XS1100 Special - Humpty Dumpty
                  80 XS1100 Special - Project Resurrection


                  Previously owned
                  93 GSX600F
                  80 XS1100 Special - Ruby
                  81 XS1100 Special
                  81 CB750 C
                  80 CB750 C
                  78 XS750

                  Comment


                  • #10
                    Also, you need to check the electolite level often. I put a new one in this spring and I checked it about 3 weeks ago and it was VERY low.

                    That'll kill a battery.

                    When you need to correct the level DON'T use acid, refill with distilled water. $.88 a gallon at wally world.
                    Greg

                    Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

                    ― Albert Einstein

                    80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

                    The list changes.

                    Comment


                    • #11
                      Originally posted by GLoweVA View Post
                      This is the one I've been looking at. I haven't bought it yet because my SG isn't ready just yet.
                      EverStart ES50N18LA3 (~$50 at walmart)

                      can't find this one on the website and theres no harbour freight up here. a $50 battery in the states is probably $80 here, the joys of being in the small canadian market.

                      i already ordered one for $80 from the local shop, i'll be charged and ready for pickup tomorrow.

                      thanks as always guys!
                      1979 XS1100SF 37000km
                      Green Dyna Coils
                      Stainless Brake Lines

                      1973 CB100
                      kevXS

                      Comment


                      • #12
                        Don't depend on a shop to properly activate your battery, they very rarely do. Wherever you get a battery, use your 2 amp charger and charge the battery for at least 12 hours before putting it into use.
                        Fast, Cheap, Reliable... Pick any two

                        '78E original owner - resto project
                        '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                        '82 XJ rebuild project
                        '80SG restified, red SOLD
                        '79F parts...
                        '81H more parts...

                        Other current bikes:
                        '93 XL1200 Anniversary Sportster 85RWHP
                        '86 XL883/1200 Chopper
                        '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                        Cage: '13 Mustang GT/CS with a few 'custom' touches
                        Yep, can't leave nuthin' alone...

                        Comment


                        • #13
                          the paid 50 for my battery. you can also get a battery maintainer at canadian tire they come on sale often for 20- 25 bucks you could also check princess auto as well.
                          '79 XS11SF

                          Comment


                          • #14
                            Crazy steve is right the local shops that sell bikes are some of the worst for screwing up a new battery cause they have 18 year olds that dad never taught how to do anything being sent to do the job with half assed training by a "tech" who barely knows more but is damn sure your the idiot if you question they're methods. Local shop in my area sells a battery activated by a quick charger to some dude with a VTX and sends him off to be a happy rider, I meet happy rider on the side of the road with what seems like the typical XS bad voltage regulator symptoms. I diagnose it to the battery as I have all my tools in my work truck. I take "happy rider" to the local shop where the battery was bought and took battery with us leaving the VTX to fend for itself and were promptly told that we were full of crap and that the new battery wasn't the problem only "happy dude" for working on his own bike. I asked what the charging practice was at the shop then asked for a new battery in a box, pulled out the instructions and explained to the "tech" and his boss how the manufacturer says to do it for warranty purposes and we end up leaving the shop with a new uncharged battery that "happy dude" was going to put on his "battery tender" to charge and by the time we were back to the VTX his two buddies had his bike loaded on a trailer and they left a little happier knowing some one gave a rip to help out. "happy dude" texted me the other day to say thanks again and the bike has been trouble free for over two months.
                            Even a blind monkey gets the odd banana.

                            1979 XS 1100 special (been down the PO trail and it was messy)

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