what is the cost of yo speed at kolkata?

i want to know more about yo speed.

Chosen Answer:

Around Rs 35k in Ahmedabad..

‘YoSpeed’ is India’s first 750-watt electric vehicle approved by the Automotive Regulatory Authority of India (ARAI). The new byke with 33AH battery and 750 watts motor, can carry two persons and run for 500 km at the cost of one litre of petrol (around Rs 50). It will compete with the regular petrol-run two-wheelers in the 75-100 cc segment since it can reach a top speed of 45 km per hour. But similar to the EVs the fuel cost is as low as 10 paise for per kilometre. If it moves around 1500 km a month, it will save more than Rs 16,000 annually of your fuel costs. Yospeed is chargeable in six to eight hours with a power consumption of 1.6 units and with a single charge, Yospeed can carry one person to a distance of 80 km and two persons to 65 km.

by: Don’t complicate things! 🙂
on: 12th December 08


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What is the best low power alternative for TV set, to use as screen for dvd player, with a 30watt solar panel?

Due to erratic power cuts in my area I want to make up by using a 30watt solar panel. My decoder is 30watt but my TV is 70W. I need something small. I don’t have problem with sound. Just picture.

Chosen Answer:

Hey ?, Classics is on the right track, but his numbers are big for what you want to do. The real shortcoming in your plan is trying to run electronics on solar directly. For that, you really do need a battery and inverter, or a battery and a DC powered TV, like you might put in the car or camper. If it were me, I would go simpler. A 12 volt deep cycle battery, like you might use to run a marine electric trolling motor can run a 500 watt inverter, with a small TV and decoder plugged in for several hours. Now, if you want to go solar, you can get a small solar panel, maybe 30 or 40 watts, and connect it to the battery. What might be easier is just using an automotive battery charger to recharge the battery when the power is on, then the battery will be available for when the power is off. An inverter with those two things plugged in might be using 5 to 7 amps when they are running. A deep cycle marine battery might hold from 50 to 80 amp hours. A 70 amp hour would theoretically run your setup for 10 hours, but in actual practice, you can only get to about 2/3s of the battery before the inverter shuts off, so maybe 7 hours.

A 500 watt inverter might cost – at a truck stop, auto parts store or RV supply place. The battery, you might have one hanging around, or you can buy them for or . You can always add the panel later. If you decide to go with a panel, make sure it does not have over about 40 watts, and it needs to have a diode installed in the junction box on the back. If there is no diode, or the wattage is over 40, you’ll need a charge controller. The controller does 2 things, keeps the battery from overcharging in the daytime, and keeps the battery from back feeding the panel at night. A diode keeps the electricity from flowing backwards, and if you panel is less than 40 watts, it shouldn’t peak out at any more than 2.5 amps. It’s almost impossible to overcharge a battery of 50 or more amp hours with that amount of current. If you want to understand this better, get a copy of Richard Perez’s book at the library and read the chapters on lead acid batteries. If you are really serious about solar, get a sub to Home Power Magazine. We did 13 years ago, now our home is completely powered by the wind and sun, and we use the utilitiy as our backup. Solar does work, it has worked at our place for 11 years now. Take care, Rudydoo
by: Rudydoo
on: 5th April 12

How big of a capacitor would you want for a 800 watt amp?

Chosen Answer:

you would think the bigger the better, but that is not the case, what happens if the capacity discharges, now you are left without enough power and then the signal goes flat…

read this
The answer to this one is simple… Several small ones. Why? If you look at specification on a capacitor you will see an ESR rating. This is short for Equivalent Series Resistance. Simply put it means how much it resists the flow of current into/out of the capacitor. The smaller the number the better. Bigger capacitor typically have a bigger ESR rating and therefore it will not charge as fast or output the needed current as fast. For those bass notes we need something that can deliver the current to our amplifier quickly and then recharge quickly!

If you refer to the water pipe example above, consider a larger ESR rating the same as a smaller pipe fitting on the capacitor.”
by: soothsayer
on: 1st January 08

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Boss Ce502 500 Watt Chaos Epic Series 2 Channel Car Amplifier

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  • Warranty – 1 YEAR

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Audiobank – AB-205TW – Car Vehicle 400 Watt Tweeter

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Whistler Pro-400W 400 Watt Power Inverter

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Provides 400-watts of continuous power. Plugs into the vehicle adapter. Direct wire cables with clamps. Cooling fan keeps inverter from over heating. 40-amp power requirement. Ground-fault sensing and electronic-circuit protection. 2 AC outlets and one USB portUse this chart to determine which inverter is right for you based on your power needs.
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