shaggydec Posted December 11, 2008 Share Posted December 11, 2008 Can anyone help ? Got a Parajet Ti and it ll only start a couple of times then the battery is flat as a fart..Its almost new and yes i have bought a new batt. Could it be earths or something ? Am now starting to make mistakes cause i dont want to turn it off Any help or advice would cheer me up no end Quote Link to comment Share on other sites More sharing options...
Phil_P Posted December 11, 2008 Share Posted December 11, 2008 Could be a duff battery from new, it does happen. Are you sure you are fully charging it to start with? You could do with fully charging it, and putting a multimeter across it and measuring the voltage as you crank your engine. If the voltage drops too far it would indicate a dead or dying cell. Quote Link to comment Share on other sites More sharing options...
pete_b Posted December 11, 2008 Share Posted December 11, 2008 Are you running the engine at revs for a lemgth of time in between starting to allow the battery to re charge Pete b Quote Link to comment Share on other sites More sharing options...
irm750 Posted December 11, 2008 Share Posted December 11, 2008 You could check the volts accross the battery before starting, and then during running at revs. If the charging system is working correctly, you should have just over 12 volts before starting and then 14+ volts when running at revs. If there is no difference then you have a charging system fault. You could then check that there is a decent earth from the charging system, and then trace connections one by one to eliminate components. Good luck! Ian. Quote Link to comment Share on other sites More sharing options...
shaggydec Posted December 11, 2008 Author Share Posted December 11, 2008 Well thankyou for your replies.. i did put a new battery on this afternoon after a good trickle charge and it managed two starts then FLAT !! Will check voltage tomorrow and all wiring then let you know Thanks Quote Link to comment Share on other sites More sharing options...
gordon_dunn Posted December 12, 2008 Share Posted December 12, 2008 Can you confirm what type of battery it is? Lead acid? etc... When these fall below a certain voltage, or totally drain, they are irrecoverable. Even if they are fully charged and sitting for a long time unsused, they will loose charge, and if they fall too far then they're never any good again. One way to solve this is to use an 'Oximiser'- basically this keeps the battery trickled continuously, and monitors voltage to keep it at optimum condition- so that it's ready for use anytime. Note that an 'Oximiser' is not the same as a regular trickle charger, and a trickle charger should not be kept on the battery continousiosly- risk of over charging and explosion. I used to have an electric start machine, but vowed never to buy another- handy when it works, but you can't beat a pull start machine! GD Quote Link to comment Share on other sites More sharing options...
outkast Posted December 12, 2008 Share Posted December 12, 2008 Fortunately I have both leccy and pull start, what Gordon was talking about can be found on ebay, just type in optimate 3, these are excelent and usually come with a lead wich permantly attaches to the battery saving you from having remove the battery each time you charge it. the optimate will charge the battery fully it will then go into a monitoring stage where it will determin the condition of the cells in the battery and wether it is loosing any charge. Quote Link to comment Share on other sites More sharing options...
t_andrews Posted December 12, 2008 Share Posted December 12, 2008 Tossing a guess in that it's a bad cell in a Ni-Cad series that's shorted or reversed polarity, sucking the life from all it's friends. Damn them dendrites... A guess, because I haven't the foggiest what Parajet uses as stock. Quote Link to comment Share on other sites More sharing options...
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