PSA - Don't use a Battery Tender Jr. on your Z

122554 · 12-05-2013, 10:13 AM

Quote:

Originally Posted by Chuck33079

Wow. Probably climate related. I get three years out of a battery. It's like clockwork.

You're right. The heat will kill em!

Vaughanabe13 · 12-05-2013, 10:18 AM

Quote:

Originally Posted by kenchan

i would check your car for abnormal parasitic draw before blaiming it on the battery tender.

There's nothing on my car drawing unnecessary power and the intelligent key battery is pulled as well so the car isn't communicating with the key. Car is stock and nothing is plugged into the adapter ports. There's really nothing it could be and the battery tested solid. I'm still going with the manufacturer on this one. Otherwise what would I even do? I'm not buying a new battery because there's nothing wrong with the current battery. I agree it sounds convenient for the manufacturer to recommend the more expensive model, but the Plus charges at twice the current so it makes perfect sense. She also told me how to troubleshoot the Tender Jr. to make sure it isn't defective (which I did, and it isn't) but she said that won't matter because the Tender Jr. wasn't designed for sports cars. If you guys don't want to listen to me that's fine, but I'm going on my third winter now and I'm sick of having a dead battery in the spring on a relatively new car. It may be 2013 now but I bought the car in fall 11 with only 4K miles. There's no way the battery should be dead this fast.

Chuck33079 · 12-05-2013, 10:19 AM

Quote:

Originally Posted by Vaughanabe13

There's nothing on my car drawing unnecessary power and the intelligent key battery is pulled as well so the car isn't communicating with the key. Car is stock and nothing is plugged into the adapter ports. There's really nothing it could be and the battery tested solid. I'm still going with the manufacturer on this one. Otherwise what would I even do? I'm not buying a new battery because there's nothing wrong with the current battery.

Then the BT Jr died. It's a bad unit if I had to guess.

kenchan · 12-05-2013, 10:23 AM

Quote:

Originally Posted by Vaughanabe13

There's nothing on my car drawing unnecessary power and the intelligent key battery is pulled as well so the car isn't communicating with the key. Car is stock and nothing is plugged into the adapter ports. There's really nothing it could be and the battery tested solid. I'm still going with the manufacturer on this one. Otherwise what would I even do? I'm not buying a new battery because there's nothing wrong with the current battery. I agree it sounds convenient for the manufacturer to recommend the more expensive model, but the Plus charges at twice the current so it makes perfect sense. If you guys don't want to listen to me that's fine, but I'm going on my third winter now and I'm sick of having a dead battery in the spring on a relatively new car. It may be 2013 now but I bought the car in 11 with only 4K miles. There's no way the battery should be dead this fast.

have them send you a replacement battery tender jr and see. i'd unplug the battery from the car to do this test as well.

you shouldnt have to unplug the battery from the car though when using battery tender.

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