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genie scissor lift low voltage help

Discussion in 'Other Compact Equipment' started by Dust, Nov 8, 2016.

  1. Dust

    Dust New Member

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    Hello, I am here to help a friend out. Genie 2632 has 6 month old batteries. Runs like batteries are down, up, fwd, rev. Low voltage on display at both upper and lower controls. No other code. Bypassed contactor to eliminate possible v loss. No difference. Batteries all load test individually good. 24.8V at batteries, 24.8 at key switch & lower circuit breaker. Individually charged all 4 separate on 6v 10a deep cycle charger, in case charger was bad, same result. Cut all zipties, chased all wires top to bottom, no shorts. Any suggestions other than new batteries? GS3213A-11xxxx
     
  2. willie59

    willie59 Super Moderator

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    I don't really have an answer to your question, rather two things that need to be confirmed. 1) you stated they passed "load test". What type of load tested did you use? If you used a standard automotive type resistor load tester, forget about it, that type load tester won't even make those batteries wake up for coffee in the morning, you have to use a carbon pile or equivalent load tester to put those batteries through the paces. And 2) is the water/electrolyte at proper level in the batteries?

    Also, battery cable connections, I've remedied many problems with these machines by simply finding a bad cable connection. Looks fine upon observation, but fails miserably when under load of machine operation.
     
  3. Dust

    Dust New Member

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    I will check the batteries more. Good call on the load tester, i had no idea. I only have a basic auto style. Can i use the lift itself as a load test, just measuring at the pump? If the charger is bad, is it worth rebuilding, where would i take it? He had suspected charger, put a trickle charger on it. I know thats no good, but would it sulfate batteries with only one charge?
     
  4. Dust

    Dust New Member

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    Thanks for your help. Electrolite levels are good, cables are good. Going to have the batteries tested properly and get a new charger.
     
  5. willie59

    willie59 Super Moderator

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    I don't know what charger is on that unit, but my guess is it's a sealed unit, not really a unit you can re-build, but you should be sure the charger is in fact failed before you condemn it. If you do determine it needs replacement I'd contact Hindley Electronics for a replacement > https://www.hindleyelectronics.com/, see how they compare to OEM. Load test of the batteries? Without a proper carbon pile or equivalent load tester, about the best you can do is connect a volt meter across the master positive and master negative of the batteries, I'm guessing that's a 24V machine, then power up the steering of the machine in either direction right or left until it bottoms out and hold it there. This will load the pump motor pushing fluid over the steer relief valve. At that point see how fast voltage drops on your volt meter. If it drops rapidly, or even a slow steady drop, likely failing batteries. But if voltage holds fairly true with a expected drop under load, batteries probably good.
     
    borisdavenport likes this.
  6. Dust

    Dust New Member

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    It was the charger. Thanks