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FREQUENTLY ASKED QUESTIONS
Below is a brief summary of some frequently asked questions. For more information, please contact our Customer Service Representatives (CSR’s), Monday through Friday, 8AM to 5PM EST. Our CSR’s can also be reached at (800) 456-6626 or via email at support_noco-usa.com. All email inquires will be answered within 24 hours.
Q1: How many watts does my charger put out?
A1: If you know the chargers voltage and amperage you can easily calculate the watts. The equation is: W = A x V. For example, a 12V, 10A charger will generate 120 watts of power.
Q2: How long will it take to charge my batteries?
A2: If you know the capacity used in your battery (amp-hour, Ah) and the charger current (Amps, A), then you can easily make an estimate of the charging time. The equation is: Charge Time (Hours) = Battery Capacity Used (Ah) / Charger Current (A). For example, if you used 60aH from your battery and have a 10A charger, the estimated charge time is 6 hours.
Q3: How do I know if my battery is charged?
A3: A 12 Volt Lead Acid Battery has six (6) individual cells (~2.0V per cell). Each 2 Volt cell has a voltage of approximately 2.15 Volts. A fully discharged 2 Volt cell has a voltage of 1.9 volts. In other words, it is a 0.25 Volt difference from fully charged to fully discharged. Thus, a 12 Volt battery will measure at about 12.9 Volts when it’s fully charged and 11.4 Volts when it is fully discharged, or a 1.5 Volt difference. With this information, you can make a good guess of the approximate charge remaining. For example, if the battery voltage is 12.15 Volts, subtract 11.4 Volts, which equals 0.75 Volts. Next, divide 0.75 Volts by the difference between a fully charged and fully discharged battery (1.5 Volts). The result is 0.5, or expressed in percentages, 50% State of Charge (SOC). Please keep in mind that this voltage potential is affected by charges and discharges. The best way to get accurate results is to wait a minimum of 30 minutes to do this measurement after a charge or discharge.
Q4: How long can I leave my charger connected to my battery?
A4: You can always leave the Genius Battery Charger connected to your batteries. Because of the chargers intelligent micro-processor, the charger determines when to charge and when not to charge. Thus, the charger does not remain in a “Maintenance” charge mode in perpetuity, which can cause damage to your batteries.
Q5: Can I charge a lead-acid battery and a gel-cell battery together?
A5: Genius Battery Chargers can charge Wet, Gel, MF and AGM batteries. However, it is good practice not to mix battery chemistries in your battery system.
Q6: Can my 12 volt charger charge my 24-volt, 36-volt, or 48-volt battery system?
A6: Yes, the Genius Battery Chargers are designed to charge each 12-volt battery independently. In the simplest form, each charger bank is a mini battery charger.
Q7: Is my charger waterproof?
A7: Yes. The Genius Battery Charger is a completely sealed battery charger that can be exposed to water.
Contact Us at: (800) 456-6626
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