Announcement

Collapse
No announcement yet.

New battery

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    New battery

    I need to buy a new battery. I did a search and the latest post I can find is dated 2016. Any advice greatly received. I have a 55 amp alternator.
    John
    1978 Stag Brooklands Green; 1986 Porsche Carrera SC

    #2
    https://www.socforum.com/forum/forum...-thread/page12

    Scroll to post #447
    Dave
    1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.

    Comment


      #3
      Looked up my Halfords receipt from 2017 - battery type HB072.
      Header tanks - you can't beat a bit of bling.

      Comment


        #4
        I fitted a Bosh S4 024 battery about 5 years ago, and am very pleased with it. It's rated at 60Ah. If it hasn't already been done to your car, it's worthwhile getting a battery with the pole positions reversed from the standard Stag layout, which takes the +ve cable away from its close proximity with the power steering pulley. This avoids potential unexpected fireworks displays and underwear changes

        Dave

        Comment


          #5
          I'm very pleased with my Varta E24, 70Ah. It's been going strong since 2012

          20120110_115055.jpg

          Comment


            #6
            If you use the standard battery clamp make sure you get a flat top battery. It makes the clamping so much easier.
            Steve.
            SteveD 1972 Mk1.5

            Comment


              #7
              optima red top for me it gives 390cca just what a stag starter needs

              Comment


                #8
                The batteries above give 630cca which must be better, mustn’t it?
                Paul - 3 projects, 1 breaker - garage built and housing 2 white Stags. One runs, one doesn't

                Comment


                  #9
                  Originally posted by Goldstar View Post
                  The batteries above give 630cca which must be better, mustn’t it?

                  Generally speaking yes, the higher the CCA (Cold Cranking Amps) the better - a higher rating will mean less voltage "sag" at the battery terminals whilst operating the starter which means more volts for the ignition and faster cranking, it is essentially related to the internal resistance of the battery and the battery capacity. BUT it is not simply a matter of comparing numbers - you also need to know what standard they are being measured to. Some of the common ones are SAE, EN, DIN, IEC, JIS. This can make a big difference. For example If the CCA is quoted as 390A CCA ( DIN) this is roughly equivalent to 625A CCA (SAE) - I believe EN gives similar numbers to the SAE figure. So when comparing the numbers on batteries make sure you are comparing like for like - check the standard to which the CCA was tested, usually quoted in brackets after the figure on the battery.

                  I have just looked at the specs for a Optima Red Top 072 battery and the one I looked at specified a CCA of 815A (EN) which is more than a Varta E24 (072) at 630A (EN). I have not seen a 072 battery with a CCA (EN) rating as low as 390A. The Optima Red Top was specified to be a AGM battery and was twice the price of a Varta.

                  Roger
                  White TV8 BW35 no mods and now a Dolly Sprint to keep it company
                  So many cars, so little time!

                  Comment


                    #10
                    I bought the Yuasa silver 030 from Halfords around christmas. It was competively priced at 98, still that price today. Comes with a 5 year warranty. The Yuasa silver is a top battery. It has the terminals reversed, i.e. the positive away from the power stering pulley. It fits fine. For the price.. very little to beat it

                    Startup Power
                    640 Amps
                    Capacity
                    75Ah
                    Recommended Charge Rate (Amps)
                    4A
                    Dimensions (LxDxH)
                    267x172x220mm
                    Weight (kg)
                    18.1

                    Comment


                      #11
                      Thanks all for your help. It's make your mind up time now
                      John
                      1978 Stag Brooklands Green; 1986 Porsche Carrera SC

                      Comment


                        #12
                        I had a Bosch S5 but it failed last year, gave the volts but delivered insufficient amps to even engage the starter solenoid. It was about 7 years old. I did replace it with another S5 though as I have used them with no problem on other cars.
                        I do carry a glove box ravpower jump starter pack. When the battery did fail I was 70 miles away from home on classic car drive it day. That little jump pack was used about 6 times during the day after engine stop to get going again, and I did over 200 miles in the day. It turned the engine over everytime just as fast as the lead acid battery. Amazing little thing!
                        Mike.
                        74 Stag (Best Modified 2007), 02 Maserati 4200, 17 BMW M140i, 00 Mitsubishi Pinin

                        Comment


                          #13
                          Which Ravpower model do you have?
                          Steve.
                          SteveD 1972 Mk1.5

                          Comment


                            #14
                            Very interested to know what Ravpower model and where from...... need a reply please mjheathcote

                            Comment


                              #15
                              Originally posted by mallardstag View Post
                              I'm very pleased with my Varta E24, 70Ah. It's been going strong since 2012

                              20120110_115055.jpg
                              + 1 from me Varta
                              "The UK,s Most Easterly Stag" Quad Exhaust- ZF 4 Speed BOX

                              Comment

                              Working...
                              X