connected to one battery, only charging bank one will display the charge status of the battery.

12.2INLINE FUSES

Inline fuses, located close to the ends of the red leads, protect the charger from extremely high voltage surges, lightning strikes or other high current surges. If a fuse blows, replace only with AGC-30 30A 32V 1 ¼” glass fuse.

12.3LED DISPLAY

Red blinking (slow) –indicates check battery connection or blown fuse Red blinking (fast) –indicates error, abort stage

Red solid – charger is charging, current at maximum Yellow #1 solid –charger is charging, voltage >14.2 volts Yellow #1 blinking – desulfation mode

Yellow #2 solid –charger is charging, constant voltage Green solid – charger is in final 3-hour charge. 95% charged Green blinking – charge complete maintain stage

NOTE: When both output leads are connected to one battery, only channel one will display the charge status of the battery.

12.4AUTOMATIC CHARGE MODE

The automatic charger uses a three-step charging process. During the

BULK charge phase, the charger attempts to deliver 10/(20) amps of current to the battery(ies) until the battery voltage levels off. At this point, the charger enters the ABSORPTION charge phase. In this phase, the charger will hold the battery voltage constant and let the battery determine the charging current. When the charging current stabilizes, the charger will continue to charge for three hours to bring the battery up to full charge.

The charger will then automatically enter the MAINTAIN MODE. During this phase, the charger will hold the battery voltage constant at 13.2 volts to guard against self-discharge of the battery. The charge current will typically be a few tenths of an amp.

12.5DESULFATION MODE

If the battery has been left discharged for an extended period of time, it may have become ‘SULFATED’. If the battery voltage is less than 12.2 volts prior to being charged, and the voltage climbs rapidly when charging begins, the battery may be SULFATED. Under this condition, the charger enters DESULFATION MODE; this is indicated by the first YELLOW LED blinking. In DESULFATION MODE, the initial charging current is very

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Napa Essentials 85-521 manual Inline Fuses, LED Display, Automatic Charge Mode, Desulfation Mode
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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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