24 VOLT DUAL MODE AUTOMATIC BATTERY CHARGER MODEL 18330 TYPE 24EL8 Specifications AC Supply: 120 volts, 60 Hertz, single-phase, 3 amps maximum DC Output: 24 volts, 8 amps tapering to 2 amps Battery Capacity: Two series connected, 6 cell, 12 volt deep-cycle motive power batteries. Gel cell and sealed "maintenance-free" or conventional replaceable electrolyte deep-cycle batteries Battery Size: 28 to 90 amp hours Normal Recharge Time: 8 hours PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS For correct operation of the equipment, it is important to read and be familiar with this entire manual before installing and operating the charger. DO NOT DISCARD THIS MANUAL AFTER READING. LOOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS. IT MEANS: BECOME ALERT—YOUR SAFETY IS INVOLVED. IF YOU DO NOT FOLLOW THESE SAFETY INSTRUCTIONS, INJURY OR PROPERTY DAMAGE CAN OCCUR. Features Charger output characteristics are adjustable to charge gel cell and sealed or conventional replaceable liquid electrolyte deep-cycle lead-acid batteries. Different charge characteristics are selected by a switch on the front of the charger. Patented electronic circuit monitors battery state of charge and automatically turns charger off as battery reaches full charge Line voltage compensation produces consistent charger output for AC supply voltage variations of + 3% from nominal. Convection-cooled design for maximum reliability and minimum maintenance. INTRODUCTION "BATTERY TYPE" switch to the correct setting. A The Dual-Mode wheelchair battery charger is patented electronic circuit turns the charger on and designed to recharge deep-cycle, lead-acid batteries off automatically. of conventional replaceable electrolyte or gel cell Batteries used on wheelchairs are subjected to and sealed "maintenance-free" design. The different severe deep-cycle duty on a daily basis. For this charge characteristics required by these different reason, it is important that only Deep-Cycle batteries types of battery design are selected by sliding the be used. lesterelectrical.com 1 01577P AC INPUT CAUTION: THIS CHARGER IS FOR USE ONLY ON 12 CELL, 28-90 AMP-HR (20 HR. This battery charger must be grounded to reduce the RATE), 2.38-2.50 VOLTS PER CELL MAXIMUM risk of electric shock. It is equipped with an electric VOLTAGE RECHARGEABLE, DEEP-CYCLE cord having an equipment-grounding conductor and BATTERY SYSTEMS. THIS CHARGER IS FOR a ground-type plug. The plug must be plugged into USE ON REPLACEABLE ELECTROLYTE OR GEL an appropriate outlet that is properly installed and CELL AND SEALED "MAINTENANCE-FREE" grounded in accordance with the National Electrical DEEP-CYCLE BATTERIES. "BATTERY TYPE" Code and all local codes and ordinances. SWITCH MUST BE SET TO THE PROPER TYPE OF BATTERY. BATTERIES IMPROPERLY DANGER: IMPROPER CONNECTION OF THE MATCHED WITH CHARGER MAY BURST, EQUIPMENT-GROUNDING CONDUCTOR CAN CAUSING PERSONAL INJURY AND DAMAGE TO RESULT IN RISK OF ELECTRIC SHOCK. DO BATTERIES OR CHARGER. NOT REMOVE GROUNDING PRONG FROM PLUG. INITIAL INSTALLATION GROUNDING INSTRUCTIONS Circuit breaker or fuse protection in the 120 volt AC outlet to which the charger is to be plugged should This battery charger is equipped with a grounding allow 5 amps per charger. Do not overload electrical plug as illustrated in Figure A, for use on a nominal outlet. Use of an extension cord with the charger 120 volt, 60 Hertz circuit. A temporary adapter, as should be avoided unless absolutely necessary. illustrated in Figures B and C, may be used to Use of an improper extension cord could result in a connect this plug to a two-pole receptacle as shown risk of a fire and electric shock. If an extension cord in Figure B if a properly grounded outlet is not is needed, use a three-conductor, No. 16 AWG (or available. The temporary adapter should be used larger) cord with ground, properly wired, in good only until a properly grounded outlet can be installed electrical condition and keep as short as possible. by a qualified electrician. The green-colored rigid Make sure that the pins on the plug of the extension ear extending from the adapter must be connected cord are the same number, size, and shape as that to a permanent ground such as a properly grounded of the plug on the battery charger. Locate all cords outlet box. so that they will not be stepped on, tripped over, or otherwise subjected to damage or stress. Do not DANGER: BEFORE USING THE ADAPTER operate the battery charger with a damaged cord or AS ILLUSTRATED, BE CERTAIN THAT THE plug. Do not operate the battery charger if it CENTER SCREW OF THE OUTLET PLATE IS received a sharp blow, was dropped, or otherwise GROUNDED. damaged in any matter. Refer to a qualified service GROUNDING METHODS agent. Provide adequate ventilation for both batteries and charger. The convection cooled design requires an unobstructed flow of cooling air for proper operation. Keep all charger ventilation openings at least two inches (2") (5.08cm) away from walls and other objects. Do not allow clothing, blankets, or other material to cover charger. DO NOT PLACE UNDER BED. WARNING: CHARGERS CAN IGNITE NOTE: Use of adapter shown in Figures B and C is FLAMMABLE MATERIALS AND VAPORS. DO NOT permitted in Canada. NOT USE NEAR FUELS, GRAIN DUST, SOLVENTS, THINNERS, OR OTHER BATTERY TYPE FLAMMABLES. Battery manufacturers frequently use the same WARNING: KEEP DRY; DO NOT EXPOSE TO battery cases for different battery types. RAIN OR SPRAY. FOR STORAGE, KEEP Replaceable liquid electrolyte deep-cycle batteries CHARGER IN A BUILDING. REPLACE WORN, have removable cell caps. Water electrolyzed by CUT, OR DAMAGED ELECTRICAL CORDS AND discharging and charging the battery is replaced PLUGS IMMEDIATELY. through these openings. lesterelectrical.com 2 01577P Gel cell and sealed "maintenance-free" deep-cycle GOOD WORKING CONDITION. DO NOT USE batteries are generally distinguished by non- CONNECTORS THAT ARE CRACKED, removable cell caps. The physical appearance of CORRODED, OR DO NOT MAKE ADEQUATE the battery case is frequently the same as that of a ELECTRICAL CONTACT. USE OF A DAMAGED replacement liquid electrolyte battery though the cell OR DEFECTIVE CONNECTOR MAY RESULT IN A caps are generally not removable. RISK OF OVERHEATING OR ELECTRIC SHOCK. Refer to the battery manufacturer's information panel 2. Move "POWER" switch to "OFF" position. on the battery case to determine the type battery 3. Connect the power supply cord to a properly you have. If the information panel is missing or not grounded, 120 volt, 60 Hertz single-phase outlet. legible, do not use the battery. Refer to your dealer if you do not understand what type battery you are 4. Connect charger's DC output plug to the using and have them set the "BATTERY TYPE" wheelchair charging receptacle. Do not connect switch accordingly. the DC plug unless the "POWER" switch is in the "OFF" position. The "BATTERY TYPE" switch is a two-position slide switch visible in the rectangular opening on the front 5. Move the "POWER" switch to "ON" and the RED of the charger. Using a small screwdriver, slide the and GREEN lights will come on steady for a few switch from one setting to the other through the seconds to test the light. If the lights do not opening. Take care not to damage the switch when come on, either the AC cord is not plugged in or moving it to the desired setting. the AC outlet is not live. Test for a live AC outlet by connecting a suitable household appliance into the specific outlet. NORMAL OPERATION Instructions printed on cover of charger are for WARNING: CHARGER IS NOT TO BE USED daily reference. WHILE THE EQUIPMENT IS OPERATING. 1. Set "BATTERY TYPE" switch to the proper style ATTENTION! Ne pas utiliser le charger of battery to be charged. pendant que l'equipment est en marche. CAUTION: MAKE SURE THE BATTERY WARNING: LEAD-ACID BATTERIES PACK IS A 24-VOLT, 12-CELL, SERIES GENERATE GASES WHICH CAN BE EXPLOSIVE. CONNECTED, 28-90 AMP-HOUR (20 HR. RATE), TO PREVENT ARCING OR BURNING NEAR RECHARGEABLE DEEP-CYCLE BATTERY BATTERIES, DO NOT DISCONNECT DC SYSTEM. THE "GEL CELL AND SEALED DEEP- CHARGING CORD FROM BATTERIES WHEN CYCLE BATTERY" SETTING CHARGES TO A THE CHARGER IS OPERATING. IF THE CHARGE MAXIMUM ON-CHARGE VOLTAGE OF 2.38 CYCLE MUST BE INTERRUPTED, MOVE THE VOLTS PER CELL. THE "REPLACEABLE "POWER" SWITCH TO "OFF", AND ELECTROLYTE DEEP-CYCLE BATTERY" DISCONNECT THE CHARGER POWER SUPPLY SETTING HAS AN ON-CHARGE VOLTAGE OF AT CORD BEFORE DISCONNECTING THE DC LEAST 2.50 VOLTS PER CELL. VISUALLY OUTPUT CORD FROM THE BATTERIES. KEEP CHECK THAT THE BATTERY TYPE SWITCH IS SPARKS, FLAME, AND SMOKING MATERIALS SET CORRECTLY FOR THE TYPE OF BATTERY AWAY FROM BATTERIES. YOU ARE USING. WARNING: ALWAYS SHIELD EYES WHEN CAUTION: MANY DC PLUGS DO NOT HAVE WORKING NEAR BATTERIES. DO NOT PUT A STANDARDIZED WIRING PATTERN. BEFORE WRENCHES OR OTHER METAL OBJECTS CONNECTING TO EQUIPMENT, VERIFY THAT ACROSS BATTERY TERMINAL OR BATTERY THE CHARGER PLUG WIRING PATTERN TOP. ARCING OR EXPLOSION OF THE MATCHES THE EQUIPMENT BEING CHARGED BATTERY CAN RESULT! BEFORE CONNECTING. DAMAGE MAY RESULT IF A PLUG THAT IS WIRED FOR OTHER Charger will output power three to five (3-5) APPLICATIONS IS USED ON YOUR EQUIPMENT. seconds after turning switch "ON" as indicated CONTACT YOUR DEALER OR THE EQUIPMENT by the RED light turning off, the slow blinking MANUFACTURER FOR MORE INFORMATION. GREEN light (once per second), and a slight transformer hum. DANGER: TO PREVENT ELECTRIC SHOCK, If both lights go off about five (5) seconds after DO NOT TOUCH UNINSULATED PARTS OF THE AC is applied, check to see if the DC plug is CHARGER DC OUTPUT CONNECTOR, BATTERY correctly connected to the battery.