® ™It is strongly recommended to completely read this manual before use! Damage resulting from misuseor modification will void your warranty.INDEXSPECIFICATIONSAC input: 110V AC 60HzDC input: 11 to 15V DC, built-in lead with alligator clipsProtective devices: solid-state reverse polarity and current overloadCase size: 7.95" x 6" x 1.97" [202 x 153 x 50mm]Weight: 27.8 oz. [789g]Specifi cations for Each OutputBattery types: 4 to 8 NiCd or NiMH (4.8 to 9.6V)Battery capacity range: 750 to 7500mAhFast charge current: 0.8A, 1.5A, 3A, 5A linear (40W)Fast charge termination: peak detectionFast charge safety timer: 90 minutesPeak sensitivity: 8mV for NiCd, 4mV for NiMHAuto-trickle current: 1/20 fast charge settingControls: 3 push buttonsDisplay type: 7-segment custom LCD with blue backlight*Output connections: built-in lead with standard connector, built-in jack for 4 to 5 cell Rx packs or Tx packsAudible tones: indicates start, stop, errors* Adapter - Standard to Deans® Ultra® male available separately (GPMM3131)* Adapter - Standard to Vendetta, MiniQuake, RS4 Battery available separately (DTXC2210)SPECIFICATIONS .......................................................... 1SPECIAL FEATURES..................................................... 2IMPORTANT PRECAUTIONS ........................................ 2GLOSSARY OF TERMS................................................. 2INPUT POWER .............................................................. 3CONTROLS & CONNECTIONS ..................................... 3DETERMING BATTERY TYPE & SPECIFICATIONS ..... 4GETTING STARTED ...................................................... 4STARTING CHARGE...................................................... 5CHARGE COMPLETE – TRICKLE CHARGE ................ 5VIEW DATA SCREENS .................................................. 6RESETTING THE CHARGER ........................................ 6CARE & HANDLING OF NiMH BATTERIES .................. 6ERROR MESSAGES & TROUBLESHOOTING GUIDE ......65-YEAR LIMITED WARRANTY – U.S.A. & CANADA ONLY.......7The DuraTrax® Onyx™ 240 charger is two chargers inone! It’s an excellent choice for electric powered modelswhich use two NiCd or NiMH batteries simultaneously, ormodelers who rotate through multiple batteries while atthe fi eld or the track. Charge current options of 800mA,1.5A, 3A, and 5 amps – plus 4 to 8 cell NiCd or NiMHcompatibility for each output makes this charger great forbatteries for 1/18th to 1/8th scale electrics, nitro receiverpacks, and transmitter batteries. A tiny AC power supplyis built-in, plus DC input capability and twin LCDs withblue backlights make this charger easy to transport anduse in any environment.