Schumacher SPEEDCHARGE 300A Manuel D’Utilisation

7

IMPORTANT: Follow all safety instructions and precautions when charging your bat-

tery. Wear complete eye protection and clothing protection. Charge your battery in a 

well-ventilated area.

block, away from the battery (see 

figure left). DO NOT connect clamp 

to negative battery post, carburetor, 

and fuel line or sheet metal part.

 

system: Connect the black (NEGA-

TIVE) output clamp to the NEGA-

TIVE post of the battery. Rock and 

twist the clamp back and forth to be 

sure a solid electrical connection is 

made. Then connect the red (POSI-

TIVE) output clamp to a heavy, un-

painted metal part of the chassis or 

engine block, away from the battery. 

DO NOT connect clamp to positive 

battery post, carburetor, and fuel line 

or sheet metal part.

6.  Plug power cord into an 120V AC 

electrical wall outlet. 

7.  The CHARGING (yellow) LED should 

light and the charging process 

should start. If the CHECK (red) LED 

is on, check for correct cable con-

nections.

8.  The charger stops charging auto-

matically after the battery is fully 

charged. Charge completion is in-

dicated by CHARGED (green) LED 

and the charger has stopped charg-

ing and switched to the Maintain 

Mode of operation.  

9.  To disconnect the charger, unplug 

the power cord from the 120V AC 

electrical wall outlet before attempt-

ing to disconnect the output clamps. 

Then, standing away from the bat-

tery, remove the output clamp from 

the chassis or engine block. Finally, 

remove the output clamp from the 

battery post.

10. Clean and store the charger in a dry 

location.

VEHICLE:
1.  Avoid personal injury by keeping 

clear of fan blades, belts, pulleys 

and other engine parts.

2.  Avoid damaging the charger by 

keeping the power cord and output 

cords away from the hood, door or 

moving engine parts.

3.  Note the polarity of the battery posts 

by checking the identification marks 

on the battery: POSITIVE (POS, P 

or +) and NEGATIVE (NEG, N or -). 

The positive post is usually larger 

than the negative post. 

4.  Identify which battery post is ground-

ed or connected to the chassis. THIS 

IS NORMALLY THE NEGATIVE 

POST.

5.

ed system: Connect the red (POSI-

TIVE) output clamp to the POSITIVE 

post of the battery. Rock and twist 

the clamp back and forth to be sure 

a solid electrical connection is made. 

Then connect the black (NEGATIVE) 

output clamp to a heavy, unpainted 

metal part of the chassis or engine