NOCO Genius BOOST MAX GB251+ User Manual & Warranty page 7

EN
Low Voltage Batteries & Manual Override.
The GB251 is designed to jump start 24-volt lead-acid battery systems down to 3-volts. If your battery is below 3-volts, the boost LED will
be "off". This is an indication that the GB251 can not detect a battery. If you need to jump start a battery below 3-volts there is a manual
override feature, which allows you to force "on" the jump start function. If the battery is below 3-volts, the boost LED will be off and the
voltmeter will not display a voltage.
CAUTION.
USE THIS MODE WITH EXTREME CARE. THIS MODE IS FOR 24-VOLT LEAD-ACID BATTERIES ONLY. BOTH THE SPARK PROOF AND
REVERSE POLARITY PROTECTION FEATURES ARE DISABLED. PAY VERY CLOSE ATTENTION TO THE POLARITY OF THE BATTERY BEFORE
USING THIS MODE. DO NOT ALLOW THE POSITIVE AND NEGATIVE BATTERY CLAMPS TO TOUCH OR CONNECT TO EACH OTHER AS THE
PRODUCT WILL GENERATE SPARKS. THIS MODE USES VERY HIGH CURRENT (UP TO 3000 AMPS) THAT CAN CAUSE SPARKS AND HIGH
HEAT IF NOT USED PROPERLY. IF YOU ARE UNSURE ABOUT USING THIS MODE, DO NOT ATTEMPT AND SEEK PROFESSIONAL HELP.
Powering Your USB & 12V Devices.
The GB251 has (2) USB-OUT ports and a 12V-OUT port (12V AUX/ cigarette lighter port). Plug-in any standard USB device or 12V device
(Up to 15A) and turn the GB251 "on" to start powering your devices.