Manuals / Harbor Freight Tools / Power Tools / Battery Charger

Harbor Freight Tools 91129 operating instructions Operation, Testing the Battery

Models: 91129

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Operation

Testing the Battery

1.Wipe the battery terminals with a cloth to remove any dirt and grease.

2.Make sure the Load Knob (C) is in the off position. Connect the red (positive) Cable Clamp (A) to the positive terminal (+) on the 12 V battery. See photo on page 4.

3.Connect the black (negative) Cable Clamp (B) to the negative terminal (–) on the battery.

4.Turn the Load Knob (C) clockwise until the DC ammeter reads 1/2 the Cold Crank Amp (CCA) rating or three times the amphour (AH) capacity of the battery. The CCA and AH rating are printed on the battery label.

Maintain load for 15 seconds to simulate an actual load on the battery. After 15 seconds has passed, the unit will sound with a beep.

5.View the DC Volts Meter and read the battery condition. Refer to the “Battery Condition Analysis” section on the next page.

6.Turn the Load Knob (C) counterclockwise to Off, and remove the Cable Clamps from the battery.

Note: Freezing temperatures affect the battery test reading. Decrease the battery rating 50 cold cranking amps for each 50°F (10°C) below freezing 30°F (0°C).

 

 

 

 

 

 

 

 

 

 

 

 

 

Battery Test: Green

Amps Scale

 

 

 

 

 

 

 

 

 

 

 

 

- OK

 

 

 

 

 

 

 

 

 

 

 

 

Red - Replace

 

 

 

 

 

 

 

 

 

 

 

 

Amp Hour Scale

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

State of Charge:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CCA Scale

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Green - OK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Red - Recharge

 

 

 

 

 

 

 

 

 

 

 

 

 

Alternator &

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Regulator Test:

 

 

 

 

 

 

 

 

 

 

 

 

 

Green - OK

 

 

 

 

 

 

 

 

 

 

 

 

 

Red - Low

Load Knob (C)

Negative

Positive

Cable (-)

Cable (+)

SKU 91129

For technical questions, please call 1-800-444-3353.

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Harbor Freight Tools 91129 operating instructions Operation, Testing the Battery
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91129 specifications

Harbor Freight Tools is renowned for offering a vast range of high-quality tools and equipment at affordable prices. Among their extensive catalog, the 91129 model stands out, gaining popularity among both DIY enthusiasts and professional tradespeople.

The Harbor Freight Tools 91129 is primarily known as a Portable Tool Chest, designed to offer effective organization and easy transportation of your essential tools. One of the main features of this tool chest is its sturdy construction. Built from rugged materials, it can withstand the rigors of daily use, making it ideal for both job site conditions and home workshops.

Its compact design is another highlight, allowing for convenient storage in tight spaces. The tool chest is equipped with multiple drawers that glide smoothly, providing access to tools while keeping them securely stored when not in use. Each drawer is lined with a non-slip material, ensuring that your tools stay in place during transport.

An important feature of the 91129 is its portable nature. With durable wheels and a retractable handle, this tool chest can be easily maneuvered, making it effortless to take your tools wherever you need them. This mobility is crucial for professionals who are always on the go, allowing them to stay organized without sacrificing accessibility.

The Harbor Freight Tools 91129 is also designed with secure locking mechanisms, ensuring that your tools are safe and protected from unauthorized access or potential theft. This feature is particularly beneficial for those who work in public spaces or frequently leave their tools unattended.

In terms of technology, the 91129 embraces practicality over complexity, focusing on providing real value to its users. The tool chest's design incorporates a user-friendly layout that allows for efficient organization, meaning you can find your tools quickly and keep your workspace clutter-free.

Additionally, the tool chest is versatile enough to accommodate a variety of tools, from hand tools to larger power tools, catering to a wide range of trades and projects.

Overall, Harbor Freight Tools 91129 offers a robust solution for tool storage and transport, combining functionality with portability. It's an excellent investment for anyone looking to keep their tools organized and easily accessible while benefiting from the quality and affordability that Harbor Freight is known for.