AUTOMATIC BATTERY CHARGER - 93781 - ASSEMBLY & OPERATING INSTRUCTIONS

Oct 22, 2026

Uploaded by aboduw

Automatic Battery Charger 93781 assembly and operating instructions provide product setup guidance, technical specifications, and safe-use requirements. The manual explains input/output ratings, charging current, cable length, dimensions, and LED status indicators for charging, fully charged (trickle), and reversed polarity. Safety sections cover work area practices, electrical grounding and double-insulation precautions, extension-cord use, personal protective measures, cable handling, and service requirements limited to qualified personnel, with warranty and record fields for the owner.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Technical Specifications

Safety Warnings and Precautions

Work Area

Electrical Safety

Personal Safety

Tool Use and Care

Service

AUTOMATIC BATTERY CHARGER 93781 ASSEMBLY & OPERATING INSTRUCTIONS Due to continuing improvements, actual product may differ slightly from the product described herein. 'LVWULEXWHG H[FOXVLYHO\ E\ +DUERU )UHLJKW 7RROV􀂊 􀀑 3491 Mission Oaks Blvd. , Camarillo, CA 93011 Visit our Web site at [http://www.harborfreight.com](http://www.harborfreight.com) TO PREVENT SERIOUS INjURY, REAd ANd UNdERSTANd ALL WARNINGSANd INSTRUCTIONS BEFORE USE. Copyright© 2005 by Harbor Freight Tools® . All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. For technical questions and replacement parts, please call 1-800-444-3353. THANKYOU for choosing a HARBOR FREIGHT TOOLS product. For future reference, please complete the owner’s record below: Model Serial No Purchase date SAVE THE RECEIPT, WARRANTY AND THESE INSTRUCTIONS. It is important that you read the entire manual to become familiar with the unit BEFORE you begin assembly. Technical Specifications Input Voltage: 115V Output Voltage: 13.5V Charging Current: 1.1 Amps Battery Cables: 6 Foot long Overall Dimensions: 3-1/2”W X 6-5/8” L X 7” H Power Cord: 18 Gauge X 2 Wire UL® listed Net Weight: 2.5 Lbs. Automatic charging: Battery Charger will not overcharge. Multiple LED indicator lights: Red LED (on left) = reversed polarity, Red LED (center) = “charging” mode, Green LED (on right) = fully charged – trickle charge mode. For best results, the capacity of the battery should be below 24 Ah. Safety Warnings and Precautions WARNING: When using product, basic safety precautions should always be followed to reduce the risk of personal injury and damage to equipment. Read all instructions before using this product! WORK AREA 1. Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents. 2. do not operate the Battery Charger in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Electrical products create sparks which may ignite the dust or fumes. 3. Keep bystanders, children, and visitors away while operating the Battery Charger. Distractions can cause you to lose control. Protect others in the work area from sparks. Provide barriers or shields as needed. ELECTRICAL SAFETY 4. Grounded products must be plugged into an outlet properly installed and grounded in accordance with all codes and ordinances. Never remove the grounding prong or modify the plug in any way. do not use any adapter plugs. Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. If agrounded product should electrically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user. SKU 93781 For technical questions please call 1-800-444-3353. Page 2 5. double insulated products are equipped with a polarized plug (one blade is wider than the other). This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to install a polarized outlet. do not change the plug in any way. Double insulation eliminates the need for the three wire grounded power cord and grounded power supply system. 6. Avoid body contact with grounded surfaces such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is grounded. 7. do not abuse the Power Cord. Never use the Power Cord to carry the Battery Charger or pull the Plug from an outlet. Keep the Power Cord away from heat, oil, sharp edges, or moving parts. Replace damaged Power Cords immediately. Damaged Power Cords increase the risk of electric shock. 8. When operating a power tool outside, use an outdoor extension cord marked“W-A”or “W”. These extension cords are rated for outdoor use, and

FAQs

What do the LED indicators show on the 93781 charger?

The left red LED indicates reversed polarity. The center red LED shows the charging mode, and the right green LED indicates fully charged with trickle charge mode.

What are the key technical specifications for the charger?

The charger uses 115V input and 13.5V output, with a charging current of 1.1 amps. It lists 6-foot battery cables and overall dimensions of 3-1/2" W x 6-5/8" L x 7" H.

What safety precautions are emphasized before and during use?

Read all warnings and instructions before use, keep the work area clean and well lit, avoid explosive atmospheres, and prevent distractions. Electrical safety guidance includes proper grounding, not modifying plugs, and using outdoor-rated extension cords when outdoors.

Oct 22, 2026

Uploaded by aboduw