more battery problems

Discussion in 'Mechanic and Repair' started by stslawncare, Dec 17, 2002.

  1. stslawncare

    stslawncare LawnSite Bronze Member
    from DE
    Posts: 1,484

    hey guys, sadly i am having more battery problems with my 16hp craftsman tractor that is around 24 or 25 years old. this is a newer battery, around a year or two old i believe. i hooked it up to a charger and it tested ok, however oncei hooked it up i got nothing. it originally came to my attention when i was getting ready to plow, started it up to let it warm up, it started, stalled, started then died. any suggestions? am i do for a new battery?
     
  2. Does it have a generator or alternator?
    If you charge the battery and it will run for awhile then die, I would start there.
     
  3. stslawncare

    stslawncare LawnSite Bronze Member
    from DE
    Posts: 1,484

    i dont believe it has a generator or an alternator, how can i be sure???
     
  4. bob

    bob LawnSite Platinum Member
    from DE
    Posts: 4,254

    Get the battery tested at a battery dealer. This will help narrow the problem down.
     
  5. sdwally

    sdwally LawnSite Senior Member
    Posts: 385

    Quick test if battery is good. Use a multimeter or voltmeter and check voltage of battery with it disconected.(ie 12.6v). Connect battery and start unit. Check voltage at battery terminals with engine at full throttle, voltage should be around 13 to 14 volts. If voltage is low your problem will be with the charging system.
     
  6. stslawncare

    stslawncare LawnSite Bronze Member
    from DE
    Posts: 1,484

    so i take it is best to go and get a new battery, test it and see if its the charging system???? any reccamendations as to what type of battery to get, if you look at my thread in tractor forum, can you take that into consideration when reccamending?
     
  7. SCAPEASAURUSREX

    SCAPEASAURUSREX LawnSite Senior Member
    Posts: 835

    SCottie, Hows it going... SO how did you make out ?? Was it just a bad battery or was the charging system malfunctioning ?? Inquireing mind s want to know... Happy Holidays...
     
  8. stslawncare

    stslawncare LawnSite Bronze Member
    from DE
    Posts: 1,484

    actually been to busy to play with it
     
  9. xpnd

    xpnd LawnSite Senior Member
    Posts: 378

    I thought the purpose of the battery was to only start an engine. Once started the battery basically goes on bypass being charged from the ignition system and the motor runs off the spark generated by the ignition system weather it be a generator, alternator or a simple flywheel magnet passing through the coil field. If the motor starts and only runs until the battery dies there is a problem elsewhere other than the battery. A motor with a dead battery and no direct short in the battery can be jump started and will run. Just won't restart
     
  10. SWD

    SWD LawnSite Senior Member
    Posts: 989

    Not true, batteries are a necessary part of the electrical circuit. Without the battery completing the circuit, a short would occur and the ignition wouldn't function.
    Bad batteries are the cause of so many ignition and poor performance (engine) related problems, and I have found, most of my customers overlook the battery as a problem source.
    In the case of the older machines, such as the first post, checking the actual wiring itself for cracks or carbon tracing would be a high priority. In this case, a battery may check out on a load test with in limits, the charging system is also working yet a high resistence area (characterized by cracked wiring insulation or the black streak marks on metal components near or nest to a wiring bindle) is in the circuit. What happens is the battery becomes a big capacitor and once the charging system recharges the battery, the high resistence area shorts or drains the charge in the battery once the engine is turned off.
    What kills the battery life is this excessive amount of charging and discharging. The chemical reaction in the battery is effected, the plates are weakened, and a cell ruptures and bingo bad battery.
    Very common with small implement batteries used in riding mowers and can happen quite quickly.
     

Share This Page