When disconnecting the charger, turn the switch to OFF (O), disconnect the AC cord, remove the clamp from the vehicle chassis, and then remove the clamp from the battery terminal.

CAUTION: WHEN THE POSITIVE (+) POST OF THE VEHICLE BATTERY IS GROUNDED, DOUBLE-CHECK POLARITY.

8.CHARGING BATTERY OUTSIDE VEHICLE OR EQUIPMENT–NOT CONNECTED TO ENGINE

If necessary to remove the battery from the vehicle or equipment, always remove the grounded terminal from the battery first.

WARNING: Make sure all vehicle loads are OFF to prevent a possible arc.

FOLLOW THESE STEPS WHEN THE BATTERY IS OUTSIDE THE VEHICLE. A SPARK NEAR BATTERY MAY CAUSE AN EXPLOSION. TO REDUCE RISK:

8.1Check the polarity of the battery posts. The POSITIVE (POS., P, +) post usually has a larger diameter than the NEGATIVE (NEG., N, –)post.

8.2Attach an insulated battery cable that is at least a 24-inch, 6-gauge to the NEGATIVE (NEG., N, –)battery post.

8.3Connect the POSITIVE (RED) charger clamp to the POSITIVE (POS., P, +) post of the battery.

8.4Position yourself and the free end of cable as far away from the battery as possible. Do not face the battery when making the final connection. Then connect the NEGATIVE (BLACK) charger clamp to the free end of the cable.

8.5When disconnecting the charger, always do so in the reverse sequence of the connecting procedure. Break the first connection while staying as far away from the battery as practical.

8.6.A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment specially designed for marine use.

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Napa Essentials 85-521 manual
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85-521 specifications

Napa Essentials 85-521 is a reliable and versatile tool designed for automotive enthusiasts and professional mechanics alike. This product exemplifies the quality and innovation that Napa is known for, making it a standout choice in the automotive parts market.

One of the main features of the Napa Essentials 85-521 is its robust construction. Built with durable materials, this tool is designed to withstand the rigors of daily use in a variety of automotive environments. Its resilience ensures that it remains effective even after prolonged exposure to challenging conditions, making it an essential addition to any toolbox.

The design of the Napa Essentials 85-521 focuses on user-friendly functionality. Its ergonomic grip allows for extended use without causing discomfort, enhancing overall productivity for users who spend long hours working on vehicles. The lightweight structure makes it easy to handle, contributing to its practicality and efficiency.

In terms of technology, the Napa Essentials 85-521 incorporates advanced precision engineering. This level of craftsmanship means that users can expect accurate performance, which is crucial for tasks that require high levels of detail and exact measurements. Such consistency in performance alleviates the concerns associated with less reliable tools, allowing mechanics to trust the tool in their hands.

Another notable characteristic of the Napa Essentials 85-521 is its versatile application. It is compatible with a broad range of automotive tasks, from minor repairs to more complex maintenance jobs. This multifaceted use makes it an invaluable tool for both DIY enthusiasts and professional technicians, as it can adapt to various situations without the need for numerous other tools.

Napa stands behind its products, and the 85-521 is no exception. The tool is backed by a warranty that reflects the company's commitment to quality and customer satisfaction. This assurance adds value to the purchase, giving users peace of mind as they integrate the tool into their work routine.

In summary, the Napa Essentials 85-521 is a combination of durability, precision, and versatility. With its ergonomic design and advanced engineering, it stands out as a dependable choice for anyone in need of a reliable automotive tool. Whether for professional use or personal projects, the Napa Essentials 85-521 is designed to meet and exceed expectations, solidifying its place in the competitive automotive tools marketplace.
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