Don't Blow Your Battery Tender I blew my Battery Tender by starting the car with it still hooked up and powered. I suspect a diode blew inside of the Battery Tender from generator current. To avoid this, simply unplug the Tender before starting the engine. Luckily it was still under warranty and a new one is on the way.
Phil |
Re: Don't Blow Your Battery Tender Are you referring to the brand name 'Battery Tender' or a different manufacturer?
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Re: Don't Blow Your Battery Tender Yes, it is a "Battery Tender" brand. It's probably good advice with other brands too.
Phil |
Re: Don't Blow Your Battery Tender Yeah too bad they don’t include an outlet wire circuit breaker for over amperage protection.
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Re: Don't Blow Your Battery Tender That's good to know.
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Re: Don't Blow Your Battery Tender Thanks, I have a battery tender and am always starting the car without unhooking it. Thanks again for the heads up.
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Re: Don't Blow Your Battery Tender Most standard type battery chargers should NEVER be used as a power supply for testing electrical components such as lights or motors as they are not designed to do this. Some large chargers have the capability to supply a couple of hundred amps for a short period to jump start cars. Battery chargers are just battery chargers ONLY. Regards, Kevin.
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Re: Don't Blow Your Battery Tender I think you may have had a bad unit. There has to be protection for high amp draws. They put out like a 1/a and that is it. Generator current should go to the battery before the tender because that is the path of least resistance. It is a good idea to unplug it first because you do not want to drive off with it plugged in.
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Re: Don't Blow Your Battery Tender That's probably good practice, I've been known to start the car with the tender plugged in. There is a fuse in the line of the leads that go on the battery. That came in handy for me one time when I was switching the charger to another battery that had a lead on it and mistakenly hooked the two batteries together.
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Re: Don't Blow Your Battery Tender I’ve seen on BT a line fuse on the positive cable and I assumed it was to stop back feed over load
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