Harbor Freight Tools 66783 operating instructions Setup, About Charging Batteries

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Setup

About Charging Batteries

Batteries draw as much power as they need from the charger. The charger does not force current into the battery. When a battery is close to dead or very low charged, it will want to draw more current. When a dead or low battery is charged, the charger’s ammeter will register at the high end. As the battery charges, the reading will move down toward the low end, resting on zero, when the battery is fully charged. See FIGURE 1 below.

FIGURE 1

Note: The ammeter shows the amount of current being drawn from the charger. It does not show what the charger is capable of delivering. When the battery is fully charged and registering zero on the ammeter, a small charge will continue to move from the charger to the battery. If you do not disconnect the charger from the battery, eventually the heat build up from the charge will cause the battery acid to boil and overcharge the battery causing damage to the battery. You must constantly monitor battery charging progress and if battery gets warm, stop charging it immediately.

Note: When charging a battery with a built-in hydrometer eye, do not depend on the hydrometer eye to determine the battery charge level.

WARNING! Use this charger only on flooded lead-acid batteries. Other batteries may be damaged or may overheat, leak, or catch fire.

Do not plug this charger in until directed to do

so in the following pages of this manual.

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

SKU 66783

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Contents For technical questions or replacement parts, please call Distributed exclusively by Harbor Freight ToolsFor technical questions, please call SpecificationsImportant Safeguards Grounding Pin Metal Screw Cover of Grounded Outlet Box Personal Precautions Charger Location Specific Safety Rules for the Battery Charger Unpacking Risk of ExplosionSetup About Charging BatteriesPreparing the Battery V / 10 a modeAmmeter Readings Engine StartingMaintenance Parts List and Assembly DiagramPart Description ’ty SKU For technical questions, please callLimited 90 DAY Warranty