The Thexton Battery Tester (115) is a pocket-sized hydrometer designed for quick and accurate assessment of a vehicle’s lead-acid battery. This simple, non-digital tool provides a reliable way to determine the battery’s state of charge by measuring the specific gravity of the electrolyte. Its compact design and easy-to-read indicator system make it an essential tool for automotive professionals and DIYers alike, helping to identify potential battery issues before they cause problems. The Thexton 115 requires minimal acid to perform its test, making the process safe and efficient. It’s an effective way to perform a cell-by-cell inspection and ensure your battery is performing optimally.KEY FEATURES AND BENEFITS: Simple and accurate design with four-ball floating system for clear readings Compact, leak-proof build with an unbreakable rubber tip and durable pocket clip Temperature-compensated for accurate results from -40F to 130F Requires minimal acid for safe and clean testing Helps prevent breakdowns by identifying potential battery issues earlySPECIFICATIONS: Model: 115 Type: Battery Hydrometer Method: Specific Gravity Test Temperature Range: -40F to 130F (-40C to 54C) Acid Required: Less than 1/4 ounce per test Included in Product: Thexton 115 Hydrometer with pocket clipHOW TO USE: Preparation: Ensure the battery is cool and the ignition is off. Remove the battery cell caps carefully. Test: Insert the nozzle into the first battery cell and squeeze the bulb to draw electrolyte. Read: Observe floating balls for charge level: No balls: Discharged 1 ball: Over 25% charged 2 balls: Over 50% charged 3 balls: Over 75% charged 4 balls: Fully charged Repeat: Return fluid to the cell and test remaining cells. Finish: Replace all battery cell caps securely after testing.BENEFITS OF USING THEXTON BATTERY TESTER (115): Provides a quick and reliable way to monitor battery condition Helps detect weak or underperforming cells before full failure Extends battery lifespan by enabling timely maintenance Saves money by reducing the need for premature battery replacement User-friendly, requiring no complex digital equipmentFEATURES: Pocket-sized, lightweight design for convenience Durable rubber tip for long-lasting use Leak-resistant construction for safe handling Clip for easy storage and portability Clear four-ball visual indicator system Requires only a minimal amount of acid for each test