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Dales-Electronic
Dales-Electronic, Home Appliance Technician
Category: Appliance
Satisfied Customers: 1417
Experience:  I am a Home Appliance / Refrigeration Technician of 25yrs+ with my own business and for multi-brand national companies.
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Leisure Battery 12V

Customer Question

Leisure Battery 12V
Submitted: 11 months ago.
Category: Appliance
Expert:  Dales-Electronic replied 11 months ago.
OK what is the problem ?
Customer: replied 11 months ago.
The battery on my tennis ball machine is draining too fast and I need guidance on what i an check for drains. It used to last 4 hours, it now lasts 1 hour.I ran some tests with a multimeter:Fully charged (not plugged in on charge)
13.8V/ 28.8AOn charge
14.2V/30.8A10 hours after charge (sitting overnight)
11pm: 13.8V/ 28.8A
9am: 13.2V/ 28.1A
Nothing was on.Recharged within a few hours on 4A trickle charger
13.9V/28.9ALoad test at full charge - running at 90% power (on and motor running but without any balls in it)
Start: 12.8V/28.7
After 10mins: 12.6V/27.1AIm looking for guidance on how i can narrow don the power drain. Its a new lead acid 12V 21A 5kg battery using spade connectors. I also bought a new trickle charger from the manufacturers supplier - They sent me a Yuasa 12v 4A Battery Charger YPC4A12 but im sending it back as it behaves same as my current one - leds are same sequence and timing. Ive replaced some spade connectors.There is a LCD screen which tells me how much charge my battery has but its completely unreliable and a random number generator. This morning it read 85%, 45%, 100%. I now have to rely on charge time.How can I narrow down the battery drain? Its a machine with a 12V battery, motor and CPU board.
Expert:  Dales-Electronic replied 11 months ago.
Sorry I'm going to opt out of this question as it came in listed as an appliance not sports equipment. Not my field of expertise.
Customer: replied 11 months ago.
Does that mean someone else will pick it up? I dont know what category to put it in as my first attempt put it as Car section, the second electronic component. The website auto picks for you and it isnt very helpful.
Expert:  Dales-Electronic replied 11 months ago.
Yes it will get picked up by one of my sports equipment colleges as soon as they see it.

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