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

kenchan

verify wat with a multimeter? verify the battery's cca using an ammeter you mean?

but why would i need to verify anything if everything is working fine the last 7yrs on one unit and 4yrs on another?

Vaughanabe13

So I guess that's a "no". A multimeter can verify the BTJr is maintaining voltage according to their float curves. It could be you perceive the BTJr to be working but really leaving it off would make no difference. Do you start your car during storage or do you rely solely on the tender? And if you don't start your car at all during storage, how long is it stored for? I'm not trying to prove you wrong/be antagonistic here, I'm trying to figure out the answer.

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2009 Nissan 370Z Touring, w/sport, 6MT, chicane yellow/black.

kenchan

well the battery is showing a healthy 12v+ at all times. it's really the cca that tells if a battery is good or not. for that, you can't just use your multi-meter.

i dont start the car at all during the 4-6month hibernation.