All Tools Supply, Inc. Logo All Tools Supply, Inc. Ph : 817-483-0700
204 Twilla Trail Fax : 817-444-4719
Azle, TX 76020.



When handling batteries, always consult the manufacturer’s manual for proper use and safety instructions. Lead-acid batteries contain sulfuric acid, which can cause severe burns, and they produce explosive mixtures of hydrogen and oxygen. Because self-discharge action generates hydrogen gas even when the battery is not in operation, make sure batteries are stored and worked on in a well-ventilated area. ALWAYS wear ANSI Z87.1 (U.S. Standard) approved safety glasses and face shield or splash-proof goggles when working on or near batteries.

To help avoid the risk of danger or injury, please follow these safety precautions ANY TIME that you handle or work with lead-acid batteries:
  • Always wear proper eye, face, and hand protection.
  • Keep cigarettes, flames, sparks, or any other ignition sources away from the battery.
  • Never try to open a battery with non-removable vents.
  • Never lean over battery while boosting, testing, or charging.
  • Keep vent caps tight and level except when servicing electrolyte.
  • Make sure the work area is well ventilated.
  • Never lean over a battery, while boosting, testing, or charging.
  • Exercise caution when working with metallic tools, or conductors, to prevent short circuits and sparks.
  • Do not charge or use booster cables, or adjust post connections, without proper instructions and training.


Never attempt to charge a battery without first reviewing the instructions for the charger being used. In addition, the following precautions should be followed:
  • Always wear proper eye, face, and hand protection.
  • Always charge batteries in a well-ventilated area.
  • Keep vents tight and level.
  • Turn the charger and timer "OFF" before connecting the leads to the battery to avoid dangerous sparks.
  • Never try to charge a visibly damaged or frozen battery.
  • Check the polarity of the battery posts. The POSITIVE (+) battery post usually has larger diameter than the NEGATIVE (-) post. Determine which battery post is grounded (connected) to the chassis.
  • For negative-grounded vehicles (most cases), connect the POSITIVE (RED) clamp from the battery charger to the POSITIVE (+) post of the battery. Connect the NEGATIVE (BLACK) clamp to the vehicle chassis or engine block away from the battery.
  • For positive-grounded vehicles, connect the NEGATIVE (BLACK) clip from the battery charger to the NEGATIVE (-) post of the battery. Connect the POSITIVE (RED) clamp to the vehicle chassis or engine block away from the battery.
  • Do not connect the clamps to the carburetor, fuel lines, or sheet-metal body parts. Connect to the heavy gauge metal part of the frame or engine block.
  • Make sure that the charger AC input leads and DC output leads to the battery are not broken, frayed or loose.
  • Set the timer, turn the charger on and slowly increase the charging rate until the desired ampere value is reached.
  • If the battery becomes hot, or if violent gassing or spewing of electrolyte occurs, reduce the charging rate or turn off the charger temporarily.
  • Always turn the charger "OFF" and unplug it from the AC input before removing charger leads from the battery to avoid dangerous sparks.


Battery acid, or electrolyte, is a solution of sulfuric acid and water that can burn the skin and destroy clothing. Please use extreme caution when handling electrolyte and keep an acid-neutralizing solution readily available. In addition, follow these precautions:
  • Always wear proper eye, face, and hand protection
  • If spilled or splashed onto clothing or the body, rinse with water for 10-15 minutes.
  • If splashed into the eye, immediately open the eye and flood it with cool clean water for 10-15 minutes. Get prompt medical attention.
  • If swallowed, drink large quantities of water or milk, and follow with milk of magnesia, beaten eggs or vegetable oil. DO NOT induce vomiting. Get prompt medical attention.
  • If it is necessary to prepare electrolyte, always pour the concentrated acid slowly into the water. DO NOT pour water into the acid. Always stir the water while adding small amounts of acid. If noticeable heat develops, allow the solution to cool before continuing to add acid. Store electrolyte properly labeled in plastic containers with sealed cover.  Do not store in the sun

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