battery

As the title states, I recently found out that the parasitic drain I've had on my vehicle's battery was being caused by my PAC RP4-MZ11 module not going to sleep. In dept details are below. The Symptoms: Letting my vehicle sit for 3 days or more resulted in my battery reading below 12V of...

Year/Make/Model: 2009 Mazdaspeed3 Mileage: 166,450 Location: Arroyo Grande, California Concern: battery started draining within a few days out of the blue DTC's: None Modifications: BNRS4, Autotech HPFP, HTP 3.5” intake, ETS TMIC, GFB t9002 hybrid BOV, turboxs DP + RP, Cobb CBE, Damond TMM +...

Recently got my 2007 Speed 6 back after shop states the engine I paid them to install was knocking, so wanted to get the battery hooked up and hearing the issue myself. I picked up a size 35 battery from Costco and went to hook up the battery terminals and sparks begin flying to the point that...

Hi folks, I'm strapping a JBR 3.5" to my new build and I'm considering going with a 51R battery to make my life easier. The batteries I'm looking at produce about 500CCA. Those of you who have done this mod, have you had any problems with cold starts? Has anyone ran this setup in colder...

(2007 Mazdaspeed 3) I recently threw a belt after I had just replaced it. I don’t know what caused what but the alternator was stiff afterwards. I ordered a reman from a local parts store. (I’m not spending 500 on a new one). The old alternator was charging fine before all of this happened. (The...

Alright, 2007 Mazdaspeed 3. Have battery light on. Tested it myself, 12.8 v before car was on and around 11v when car was running without load. Took it to oreilly and tested while car was running, and said battery is good (but voltage was low (10.4v w/load)) and also said alternator was not...