My 2004 AT Rx-8 is still on the road with little to no problems. Granted my only issue is I barely need to drive where I live.

My question - can I use this to charge my dead battery? https://www.oreillyauto.com/detail/b.../55001/4742356

in the past I’ve just used it to jump start, but that is getting old real fast. I’m not much of an electronics expert, so I was just wondering if I can leave this connected to battery to charge it fully - and if so, the safe amount of time I could do so for.

 

You would be better off using a trickle charger or putting on a disconnect so the battery doesn't die

 

Power packs don't charge, they just boost. Kind of like if you connect to a good battery with cables, it will jump your car, but not charge it.

Why are you having to jump it so often?

 

dammit. Okay. I barely ever drive my car. That’s why.

 

I've been using this for years, it's cheaper than your power pack.


Comes with a hardwire kit, I zip tied it around the battery cover looping around to the passenger side following one of the radiator hoses. I can attach a pic if you want. Works perfectly for when you rarely drive the car.

 

And I just noticed you're in San Diego.. where in the world have you been.. we have monthly meetings!

https://www.facebook.com/groups/2289980094425051/

https://www.meetup.com/SD-RX7-Club/e...YzEyMTQ4YmQ0Mw

 

Then yes, a battery tender will be your best bet. Or, drive it more!

 

In general, lead-acid batteries like to be charged slowly(trickle charging). That's why it's recommended.

Jumping is okay for emergency, but doing it too often can lead to the battery to wear out more quickly.

You can get a NOCO Genius trickle charger at just about anywhere for a good price.

 

Agree with Unknown. And, if a battery is dead, then jumped, a 20 minute drive isn't going to charge it, so the cycle continues and the battery degrades quickly. Until you get your battery tender, put an automatic charger on it for 4 hours before you plan to drive it. Much better to charge it and then start normally than to keep jumping it, just as said above.

I think the longest mine has sat in the few months I've owned it is 2 weeks, and it started right up, spun easily. So your battery might be dying by now.

 

This is the hard wire kit you get with the battery tender I linked above from amazon. I connected it to the battery directly.. looped it around the battery cover and held it in place with some zip ties. Anytime I need to hook up the charger I uncap the plug seen on the left and I'm done. Super easy to do and worth the $40.

 

I got it hooked up to a trickle charger and it’s charging up. Thanks guys!

 

speed, I’d love to come to one of those. Though my 8 is a slug. Stock 4 speed AT.

 

We love all rotary cars, auto or manual. We usually just hang out and grab some lunch. I think you’d really enjoy it.

 

fixed that for you ...