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Item 99857 

For technical questions, please call 1-888-866-5797. 

Page 10

10.  1st stage: Constant Current. When 

the battery is severely discharged, 

the Charger applies Constant 

Current. This stage speedily charges 

the battery while protecting against 

damage, loss of Hydrogen or even 

explosion. The battery is charged to a 

maximum of 14.8 VDC.

11.  2nd Stage: Constant Voltage. This 

is a speed charge cycle for batteries 

nearly full. It will top off the battery at 

14.8 VDC, utilizing a 200 mA trickle 

charge.

12.  3rd stage: Floating Constant Voltage. 

This stage maintains a fully charged 

battery in its best condition by 

constantly applying small “ticks” of 

charge. The battery will never fall 

below 13.5 VDC.

OPERATING INSTRUCTIONS

  Read the ENTIRE IMPORTANT 

SAFETY INFORMATION 

section at the beginning of this 

manual including all text under 

subheadings therein before set 

up or use of this product.

Tool Set Up

 

TO PREVENT 

SERIOUS INJURY: 

Use only an appropriate 

extension cord in good 

condition to operate this 

Battery Charger.

See pages 6 and 7 of this 

manual for information on safe 

use of extension cords.

Work Piece and Work Area Set Up

1.  Designate a work area that is clean, 

ventilated and well-lit.  The work area 

must not allow access by children or 

pets to prevent injury and distraction.

2.  Route the power cord along a safe 

route to reach the work area without 

creating a tripping hazard or exposing 

the power cord to possible damage.  

The power cord must reach the work 

area with enough extra length to 

allow free movement while working.

3.  To prevent electrical shock, avoid 

moisture or water in the work area.

General Operating Instructions

1.  Be sure the vehicle engine is OFF, 

the engine is cool and the key is 

removed from the ignition. 

Summary of Contents for Cen-Tech 99857

Page 1: ...reference When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2008 by Harbor Freight Tools Al...

Page 2: ...ould result in death or serious injury CAUTION used with the safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE is used to address...

Page 3: ...d use common sense when operating a Battery Charger Do not use a Battery Charger while you are tired or under the influence of drugs alcohol or medication A moment of inattention while operating Batte...

Page 4: ...minals together may cause burns or a fire b Under abusive conditions liquid may be ejected from the battery avoid contact If contact accidentally occurs flush with water If liquid contacts eyes additi...

Page 5: ...e not only flammable but they also obstruct vents under the charger 12 This product is not a toy Keep it out of reach of children 13 People with pacemakers should consult their physician s before use...

Page 6: ...nding provides a low resistance path to carry electricity away from the user reducing the risk of electric shock See 3 Prong Plug and Outlet 2 The grounding prong in the plug is connected through the...

Page 7: ...ou are using one extension cord for more than one tool add the nameplate amperes and use the sum to determine the required minimum cord size See Table A 6 If you are using an extension cord outdoors m...

Page 8: ...p or use of this product TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION Unplug the tool from its electrical outlet and disconnect from battery before assembling or making any adjustments to the t...

Page 9: ...e sure it is still firmly attached A loose Battery Charger can become damaged or damage vehicle components 8 Be sure the vehicle ignition switch is in the OFF position Using the vehicle battery clamp...

Page 10: ...tion at the beginning of this manual including all text under subheadings therein before set up or use of this product Tool Set Up TO PREVENT SERIOUS INJURY Use only an appropriate extension cord in g...

Page 11: ...5 Observe the LED lights on the charger to determine the operational status of the circuit and the charger 6 Periodically check the Battery Charger during operation to be sure it does not overheat 7 B...

Page 12: ...NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO...

Page 13: ...Item 99857 For technical questions please call 1 888 866 5797 Page 13 ASSEMBLY DIAGRAM 1 2 4 5 6 7 8 12 11 10 9...

Page 14: ...N LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportat...

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