IMPORTANT SAFETY INSTRUCTIONS & WARNINGS CAUTION WORKING WITH LEAD ACID BATTERIES AND CHARGERS: All lead acid batteries have the potential to emit gasses that may combine into a combustible SAVE THESE INSTRUCTIONS: This manual contains important safety and or explosive mixture. In many cases, it is possible that lead acid batteries will operating instructions for the Battery Tender®...
Page 3
WARNING PERSONAL PRECAUTIONS ELECTRIC SPARK & OPEN FLAME: NEVER smoke or allow a source of electric spark or open flame in the vicinity of the battery or engine. (For example: WARNING Don't charge the battery next to a gas water heater.) WHEN YOU WORK NEAR LEAD-ACID BATTERIES: VENTILATION: Do not operate the Solar Charger Controller where ventilation is restricted.
PRODUCT SPECIFICATIONS SOLAR CHARGER CONTROLLER INSTALLATION CONNECTIONS AND OPERATION BATTERY TENDER® SOLAR CHARGER CONTROLLER Max Input Voltage 50 Volt Max Input Power 12Volt 450Watt / 24Volt 900Watt Max Output 12VDC, 30Amp USB Output 5VCD, 2x, 3.4 Amp Max Controller Part Number 021-1178 Working Temperature 14 to104°F (-10 to 40°C)
FRONT PANEL FRONT PANEL DESCRIPTIONS Temperature Sensor Solar panel + positive input Solar panel - negative input Battery + positive output Battery - negative output Load + positive output Load - negative output LCD Screen (see next page for descriptions) Solar panel Charging Green LED –...
LCD DESCRIPTIONS LCD MENU SETTINGS 1. To enter the menu screen press the menu button once, then press again and hold for two (2) seconds. The settings icon will then appear and the first LCD settings screen will also appear. To move to the next LCD settings screen press the menu button.
Page 7
4. Low Voltage Recovery Re-engage Clock 1 Screen When your battery voltage has charged back up to this voltage the outload will Clock 1 symbol is on. The default is sixty reactivate. Press the enter button and the (60) minutes. This means when the PV voltage# will flash.
Page 8
Clock 1 Screen Clock 1 Screen Clock 1 symbol is on. The default is three Clock 1 symbol is on. This is a power on (3) hours. This means when the PV input timer, and means the output load will be voltage drops below 10V, the output load activated at 5.00.
Page 9
ADDITIONAL SOLAR CHARGER CONTROLLER FAULTS INFORMATION/WARNINGS THE RED ERROR LED ON THE FRONT PANEL WILL BE RED IF THERE IS A FAULT WITH THE OUTPUT REGULATOR. 1. Wire the solar panels cables into the connector on the controller; make sure the solar panel input voltage DOES NOT exceed the max limit of the controller.
TEMPERATURE COMPENSATION/ WARRANTY TEMPERATURE SENSOR The Battery Tender® Solar Charger Controller comes with a two (2) year limited (Only for Lead Acid/AGM Batteries) warranty against defects or failure (within two (2) years of purchase). 1. The system will automatically adjust the float voltage according to the THIS LIMITED WARRANTY IS VOID under the following conditions: ambient temperature.
Need help?
Do you have a question about the Battery Tender Solar Charger Controller and is the answer not in the manual?
Questions and answers