Parasitic Draw Testing: Finding the “Ghost” Drain That Kills Your Pack in a Week
Is your golf cart battery dying while sitting? Learn how to perform a parasitic draw test with a multimeter to find the "ghost" drain killing your pack.
Alex
Alex runs Golf Cart Lab as a hands-on research and repair notes project. Guides are built from OEM service literature, parts diagrams, multimeter checks, owner failure reports, and repeat patterns from golf cart forums, then revised when better model-specific evidence is found.
Sulfation Reversal: Can You Actually “Bring Back” a Dead 8V Battery?
Can you actually reverse sulfation and bring back a dead 8V golf cart battery? An honest look at what desulfation can and cannot do, and when to replace instead.
OBC vs. External Charger: Why Your Club Car Won’t Recognize a New Charger
Is your Club Car refusing to charge? The Onboard Computer (OBC) often clashes with modern smart chargers. Learn how to reset, troubleshoot, and bypass the OBC to restore your charging system.
Lead-Acid Hydrometer Deep Dive: Cell-by-Cell Specific Gravity Guide
Voltage can be faked; chemistry cannot. Learn how to use a hydrometer to perform a cell-by-cell deep dive into your golf cart batteries to find hidden failures.
Golf Cart Tire Size vs. Torque: The 23-Inch Efficiency Tax
nstalling 23-inch tires increases speed but kills torque. Learn the physics of mechanical leverage and how larger tires affect your motor's efficiency and heat levels.
Golf Cart Cable Science: 6AWG vs. 2AWG Voltage Drop Analysis
Does cable thickness actually matter? We calculate the voltage drop and heat generation differences between stock 6AWG and heavy-duty 2AWG cables.
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When to Upgrade to a 400A Heavy-Duty Solenoid: A Complete Guide
Upgrading your motor or controller? Learn the science behind why a 400A heavy-duty solenoid is required for high-performance golf carts to prevent melting and welding.
Golf Cart Motor RPM Limits: Calculating Safe Max Speed
How fast is too fast? Learn the safe RPM limits for stock Club Car and EZGO motors, the math to calculate your top speed, and why "overspeeding" can lead to a motor explosion.
Golf Cart Motor Brush Wear: When to Replace to Save Your Commutator
Don't wait for your motor to die. Learn the signs of worn brushes, like sparking and loss of torque, and how to inspect them before they destroy your commutator.
Golf Cart Series vs. Sepex (Shunt) Motors: Hills vs. Speed Guide
Which motor is better: Series or Sepex? We compare the torque, speed, and hill-climbing ability of both DC motor types to help you choose the right setup for your terrain.
Golf Cart Controller Showdown: Stock vs. Navitas vs. Alltrax (Dyno Data)
Is an aftermarket controller worth the money? We compare the dyno expectations of Stock Curtis, Alltrax XCT, and Navitas TSX. See the real-world torque and speed gains.
Golf Cart 48V to 72V Conversion: Speed & Torque Gains Analyzed
Want to hit 40+ MPH? We analyze the real-world data of converting a 48V golf cart to 72 Volts. See the speed gains, torque figures, and the total cost of the upgrade.