Products & Reviews
Which Car Battery is Best?
Optima AGM, Duralast, Everstart, Diehard, SuperStart, and Autocraft car batteries were tested for internal resistance, cranking amps, charge rate, and cold-cranking amps. [More…]
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Battery & Charging
How To & DIY
How To Wire 2 Batteries: Parallel, Series, or Both for 2x Volts, 2x Capacity
Stacey David walks you through different ways you can wire dual batteries in your vehicle: Parallel vs Series [More…]
How To & DIY
How To Make Battery Cables
Jeremy demonstrates several methods for soldering large ring terminals onto heavy-gauge battery cable.. [More…]
Technical Info
Lead-Acid Batteries Vs. Deep Cycle Batteries
There are two common types of batteries: lead-acid and deep cycle batteries. What is exactly is the difference, and what are they used for? [More…]
Automotive Basics
Understanding Alternators – How To Test and Troubleshoot
This alternator works together with the battery to supply power when the vehicle is running. Here’s how to test and troubleshoot. [More…]
Technical Info
Alternator Wire Gauge Size Chart
When upgrading an alternator, also upgrade the wire gauge that charges the battery as well as the fusible link in case of a short. [More…]