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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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04-26-2011, 12:05 PM | #1 |
Gone Wild
Join Date: Jan 2011
Location: Camino, CA.
Posts: 300
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Voltage drop under load
I am looking at a new motor from Plum Quick for speed, around 6000 - 6500 RPM. I am concerned about load factor and voltage drop.
I have 8 new T105 batteries (48v) and they still need a few more cycles to get to full capacity. I just did a locked rotor test with the pack starting at 50.8 volts (not full charge). With a 50A draw, it was 47.8 volts and with a 200A draw, it was 42.8. Thoughts? The T105 is rated at 115 minutes @ 75A or a 5 hr. rate of 185AH. I saw a tread were Scotty talked about load testing and the voltage staying 5.9 - 6.0. That would mean that I should not have dropped below 47.2 (assuming a full charge). |
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04-26-2011, 10:39 PM | #2 |
Gone Wild
Join Date: Mar 2009
Location: Roseville, CA
Posts: 2,757
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Re: Voltage drop under load
The voltage readings are close enough.
From a real life test, I just put brand new batteries in my cart a few months ago. My voltage starts at 51.5v, drops to about 43.5v at full throttle on hard surface and levels out to about 48v/49v while cruising at full throttle. |
04-28-2011, 03:47 PM | #3 | ||
Gone Wild
Join Date: Jan 2011
Location: Camino, CA.
Posts: 300
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Re: Voltage drop under load
I have sent a request to Trojan Batteries:
Quote:
Quote:
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