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Contact Information

Add: CARSPA Building, Xinhejia Industrial Zone, Baishi, Yueqing, Zhejiang, 325604 China
Tel : 86-577-61778999
         86-577-62767199(direct line)
Fax : 86-577-62767299
E-mail : info@chinacarspa.com
               info@carspa.cn
Mobile phone : 86-18968718698
                          86-18968718695
http://www.chinacarspa.com

FAQ

Q. What is a power inverter ?
A. power inverter converts DC power into conventional AC power allowing you to use your favorite devices when an AC outlets is not availiable.Simply connect an inverter to a battery source,plug your appliance into the inverter and your’re set!
Q. I have a 12 volt car battery and then I have a scooter with a six volt. Will the 12 volt Battery Tender Charger charge them both?
A. No, you need a separate 6 volt battery charger for the 6 volt battery.
Q. Can a 5,000 watt modified sine wave power inverter be used to power electrical baseboards, or a space heating system? If yes, can this be done over a 5 to 6 hour period daily?
A. Yes, that will work for most heating systems, except sometimes, when they have variable heating. That may require a pure sine wave inverter. Most standard heaters do work even with variable fan speeds. The inverter will work as long as the batteries have enough voltage level to support it for a 5 to 6 hour period.
Q. What type of inverter is needed to power an electronic Yamaha 650 keyboard and two speakers for an outdoor performance?
A. A pure sine wave inverter is needed and the size of the inverter will depend on the amps and wattage being used.
Q. What does Soft Start mean?
A. Soft Start means it ramps up to the peak and doesn’t just jolt there.
Q. Will a 180 watt power inverter provide sufficient wattage to run both a cell phone and a laptop, or do I need an inverter with more wattage?
A. The cigarette lighter socket will not provide more than 180 watts, so if you are drawing more power, you will need to connect direct to the battery with a larger inverter. The question is too general as it lists no specifics. A cell phone charger is not much power, but a laptop may be 80 watts to 220 watts, so you need to add the watts and stay below 180 for the 180 watt inverter to power both.
Q. What is PWM?
A. Pulse Width Modulation (PWM) is the most effective means to achieve constant voltage battery charging by switching the solar system controller’s power devices. When in PWM regulation, the current from the solar array tapers according to the battery’s condition and recharging needs.
Q. What is an LVD?
A. Our solar charge controllers have an LVD function. To prevent low battery voltage from destroying your battery, the unit can be used to disconnect the load when it's out of charge to prevent damaging it. Normal operation resumes once the battery has received some charge from the PV charge controller.
Q. What is temperature compensation?
A. The ability of the battery to store and accept charge varies with temperature. For optimum battery performance the charge controller needs to adjust its output voltage control to correspond to the needs of the battery as the temperature changes. A standard temperature co-efficient used by our charge controller is -5mv/ Deg C/cell.
 
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