Schumacher SF-2150MA owner manual Charge Period, Troubleshooting, Problem Possible Cause Solution

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G.CHARGE PERIOD

The approximate time required to bring a battery to a full charge state depends upon the number of ampere hours (AH’s) de- pleted from the battery. AH’s are determined by multiplying the number of hours times the number of amps supplied by a bat- tery to a load. For example - if a load was connected to a battery which drew 10 Amps for a period of 5 hours, the battery will have supplied 50 AH’s. The approximate recharge time required to restore the 50 AH’s depleted from the battery would be calcu- lated by dividing 50 AH’s by the selected charge rate. If the 15 Amp charge rate is chosen then divide 50 AH’s by 15 Amps, this equal to 3.3 hours or 3 hour and 20 minutes. During the charge cycle, the 15 Amp charge rate will not remain constant, rather as the battery charges it will taper to approximately 6-7 Amps. Also not all of the energy going into the battery is directly converted, some is lost in the form of heat. For these reasons allow an additional 25% in charge time. For this example add 50 min- utes to the 3 hour and 20 minutes for a total recharge time of 4 hour and 10 minutes.

50 = 3 Hours 20 Minutes

15

3 Hours (180 minutes + 20 minutes = 200 minutes)

200 x 1.25 = 250 minutes or 4 Hours & 10 minutes

TROUBLESHOOTING

If a problem does occur, check the following:

PROBLEM

POSSIBLE CAUSE

SOLUTION

No meter reading.

Clips are not making

Rock clips back and

 

a good connection.

forth for a better

 

 

connection.

 

AC Cord unplugged.

Plug AC line into outlet.

 

 

Meter should now

 

 

indicate.

 

 

 

Charger will not turn

AC outlet is dead.

Plug in a lamp to check

on when properly

 

for voltage.

connected.

 

 

 

Poor electrical

Check connectors, rock

 

connection.

back and forth for a

 

 

better connection.

 

 

 

Clicking noise from

Circuit breaker is

May be in the wrong

charger.

cycling.

switch position.

 

Battery is defective.

Have Battery checked.

 

Severely discharged

Allow charging to

 

battery but otherwise

continue until battery

 

a good battery.

has a chance to recover

 

 

sufficiently to take a

 

 

charge. If more than 20

 

 

minutes stop charging

 

 

and have the battery

 

 

checked.

 

Reverse connections

Shut off charger and

 

at battery.

correct lead connections.

 

 

 

LIMITED WARRANTY

SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER

THIS IS THE ONLY EXPRESS LIMITED WARRANTYAND THE MANU-

DRIVE, MOUNT PROSPECT, ILLINOIS 60056-2179 MAKES THIS LIM-

FACTURER NEITHERASSUMES NORAUTHORIZES ANYONE TOAS-

ITED WARRANTY TO THE ORIGINAL PURCHASER AT RETAIL OF

SUME OR MAKE ANY OTHER OBLIGATION TOWARDS THE PROD-

THIS PRODUCT. THIS LIMITED WARRANTY IS NOT TRANSFERABLE.

UCT OTHER THAN THIS EXPRESS LIMITED WARRANTY. THE MANU-

Schumacher Electric Corporation warrants this battery charger for

FACTURER MAKES NO WARRANTY OF MERCHANTABILITY OR FIT-

NESSFOR PURPOSEOFTHISPRODUCTAND EXPRESSLYEXCLUDES

two years from date of purchase at retail against defective material

SUCH FROM THIS LIMITED WARRANTY.

or workmanship. If such should occur, the unit will be repaired or

 

replaced at the option of the manufacturer. It is the obligation of the

SOME STATES DO NOTALLOW THE EXCLUSION OR LIMITATION OF

purchaser to forward the unit together with proof of purchase, trans-

INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LENGTH OF IM-

portation and/or mailing charges prepaid to the manufacturer or its

PLIED WARRANTY SO THE ABOVE LIMITATIONS OR EXCLUSIONS

authorized representative.

MAY NOT APPLY TO YOU.

This limited warranty is void if the product is misused, subjected to

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU

careless handling, or repaired by anyone other than the manufac-

MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO

turer or its authorized representative.

STATE.

The manufacturer makes no warranty other than this limited war-

 

ranty and expressly excludes any implied warranty including any

 

warranty for consequential damages.

 

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Contents Business Center Drive Mount PROSPECT, Illinois General Battery SafetySchumacher Electric Corporation Grounding and AC Power Cord Connection Instruc Personal Precautions and SafetyPreparing to Charge Grounding MethodsBattery Type Selector Meter and Switch FunctionsCharge Rate Selector Crank StartingOperating Instructions Charging Battery OUT of Vehicle Operating Instructions Charging Battery in VehicleNegative Grounded Post Positive Grounded PostProblem Possible Cause Solution TroubleshootingLimited Warranty Charge PeriodPage Schumacher Electric Corporation Consignes DE Sécurité Générales SUR LES ChargeursPréparatifs DE Charge Consignes DE Sécurité À L’INTENTION DE L’USAGERCCA CAP. RÉS MCASélecteurdetypedebatterie Fonctions DES Commutateurs ET DE L’AMPÈREMÈTRESÉLECTEURD’INTENSITÉDECHARGE Démarrage D’UN MoteurBorne Positive Mise À LA Masse Borne Négative Mise À LA MasseGarantielimitée Période DE ChargeInstructions DE NETTOYAGE/ D’ENTRETIEN Dépannage Problème Cause Probable Solution

SF-2150MA specifications

The Schumacher SF-2150MA is an advanced battery charger and maintainer, specifically designed to meet the dynamic needs of today's automotive enthusiasts and everyday drivers alike. This model is characterized by its solid build, intelligent charging system, and user-friendly design, making it a popular choice among consumers.

One of the standout features of the SF-2150MA is its microprocessor-controlled charging technology. This smart system allows the charger to automatically adjust the charging rate based on the battery’s needs. It employs multi-stage charging, which optimizes the charging process and ensures the battery is charged efficiently and safely. This feature not only prolongs the life of the battery but also enhances its performance.

The SF-2150MA is compatible with a wide range of battery types, including lead-acid, AGM, and gel batteries. This versatility makes it suitable for various applications, from cars and trucks to recreational vehicles and motorcycles. Furthermore, the charger operates with a 2-amp output, which is effective for maintaining batteries during long periods of inactivity, making it an ideal choice for individuals who own multiple vehicles.

Another significant characteristic of the Schumacher SF-2150MA is its smart maintenance mode. This mode provides a constant float charge that keeps the battery topped off, preventing overcharging while ensuring that it remains ready for use. The LED status indicator is another user-friendly feature that provides real-time updates on the charging status, making it easier for users to monitor the charging process without guesswork.

Safety is also a top priority with the SF-2150MA. Equipped with reverse polarity protection and short-circuit protection, the charger safeguards both the user and the battery from any potential hazards associated with improper connections. This emphasis on safety further enhances user confidence, especially for those who may be less experienced with battery maintenance.

Compact and lightweight, the Schumacher SF-2150MA is designed for portability, enabling users to easily store and transport the charger. Its intuitive design allows for straightforward operation, making it accessible for both novice and experienced users.

In conclusion, the Schumacher SF-2150MA combines cutting-edge technology, safety features, and user convenience in a compact package. Its ability to charge and maintain various battery types while ensuring efficient performance makes it a valuable tool for anyone looking to optimize their battery management strategy. Whether for everyday vehicle use or maintaining recreational vehicles, the SF-2150MA stands out as a reliable and effective battery charger.
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