CONGRATULATIONS ON THE PURCHASE OF YOUR THUNDER DC TO DC BATTERY CHARGER. For your personal safety, read, understand and follow the information provided in this instruction manual and on the battery charger. This specialty 12 Volt battery charger is a sophisticated multi stage charger, utilising fully automatic computerised control, designed to charge most 12 Volt Gel, Lead Acid and Calcium batteries. It is recommended that this unit be installed by a qualified tradesman.
CONTENTS 3. Features & Benefits 4. Important Safety Warnings 5. Installation 6. Specifications 7. Integrated LED Diagram 8. Wiring Diagram 9. 8 Stage Charging Mode 10. Solar Charging Mode 11.
FEATURES & BENEFITS • Heavy duty aluminium case. • Microchip monitoring and control. • Fully automatic high frequency multi stage charging. • Pulse mode technology that reduces oxidation, and minimises temperature equating to longer battery life. • Unit will automatically change charge rate mapping for GEL, AGM and standard Lead Acid. • Internal charger temperature monitoring and power output control. • Easy to read LED indicators showing state of charge.
IMPORTANT SAFETY WARNINGS FOR AUTOMOTIVE 12 VOLT USE ONLY, NOT TO BE USED WITH DRY CELL BATTERIES. To avoid any personal injury, please read the following safety instructions. This battery charger is not intended for use by young children or infirm persons without supervision. 1. During the charging process, do not use a naked flame near a battery. Batteries generate explosive gasses during the charging process that may explode. 2. Never smoke or light cigarettes near a battery. 3.
INSTALLATION • Locate the charger in a suitable dry area in the vehicle or caravan. • Secure the charger using the mounting tabs on the unit. • Connect the input terminal on the rear of the charger using suitable cable to the main starting battery of the vehicle (see specification table on next page), it is recommended to place a circuit breaker (30A minimum, not supplied) in the main positive lead as close as possible to the starting battery.
SPECIFICATIONS SPECIFICATIONS OUTPUT INPUT FUSE RATING Minimum 30A OUTPUT FUSE RATING Minimum 30A VEHICLE INPUT VOLTAGE RANGE MIN AND MAXIMUM CHARGING VOLTAGES 6 20A 12.2V-17V Note: If voltage increases over 17V the Thunder DC-DC will shut off, reset will be needed. 13.1V-15.2V (stops charging when alternator or vehicle battery below 12.
INTEGRATED LED DIAGRAM The TDR02020 uses an integrated LED display for easy reference of your auxiliary battery state of charge and indicator lights. These functions include; • Solar (green LED) • Reverse polarity (orange LED including alarm) • Faulty battery (red LED) SOLAR INPUT REVERSE WARNING BATTERY ERROR NOTE: The percentage display shows the stage at what the DC-DC battery charger is in, not the percentage of the battery charge, at 80% the battery is fully charged.
WIRING DIAGRAM As your auxiliary battery charges, its state of charge is reflected by the Thunder logo illuminating in 10% increments. A percentage charge is also shown in green. This percentage charge will be affected by loads that are attached to the auxiliary battery. The percentage charge of the auxiliary battery is most accurate when there is no load being drawn.
8 STAGE CHARGING MODE 1. Stage 1 - Battery Check: Pre-charge 5 sec, switches into stage 2 (12V). 2. Stage 2 - Soft Start: Less than 2A or 10 sec charging, switches into stage 3. 3. Stage 3 - Constant Current Charging (Bulk Charge): Max 20A, switches to stage 4 when the battery voltage charges to 14.5V. Note: Voltage varies to maintain a constant current until 14.5V is reached. 4. Stage 4 - Constant Voltage Charging (Absorption Charge): Constant 14.
SOLAR CHARGING MODE 1. Stage 1 - Direct Solar Energy: Charges the battery until the battery voltage reaches 14.5V, switches to stage 2. 2. Stage 2 - Overpressure Pulse Charging: When the battery voltage is lower than 14.5V, charger pulses for one sec on and one sec off. This will occur for two hours, or until 14.5V average is reached (whichever comes first). Then will switch to stage 3. 3. 10 Stage 3 - Pulse Floating Charge: Pulse one sec on, one sec off at 13.8V.
WARRANTY TERMS & CONDITIONS When you acquire or fit a Thunder product you have the peace of mind in knowing that it is backed by a comprehensive 12 month warranty against defects in materials & workmanship. The Thunder warranty is provided in additional to any rights you may have under the Australian Consumer Law. All claims under this warranty should be made by returning the product to the place of purchase at your expense, with the detail of the fault, proof of purchase & fitment details.
