Electric bike battery life?

vasu

For how many days electric bike batteries can work normally. What are the maintenance costs for that. In India is it registration for that.

Answer
It's not clear what you mean. There are 2 things:
1. How long the battery will run before recharging depends on its size, age & condition and how it is driven - the maker usually gives a figure for the bike's range (distance per charge), but this is an average based on a factory test. If the weather is very cold, if you drive faster or uphill, or with a heavy load, the distance will be shorter. If you drive more slowly, on level roads or downhill and are a small, light person the range will be more.
2. The lifetime of a battery depends on its type (lead-acid, lithium etc.) and how often it is charged/discharged. If a battery is stored in very hot conditions it will not last as long. Again the maker will advise the average lifetime.

Maintenance cost depends on a number of things:
1. If you charge the battery from mains electricity, the cost of charging. the easiest way to find this is to charge the battery ovenight and check your electricity meter, then you can calculate the cost.
If you have a solar panel or wind generator, the charging can be free but these chargers will cost you a lot of money to buy.
2. There will be other maintenance costs like servicing, new tyres and spare parts when the new ones wear out, you will only know these costs when you have used the bike for a long time, perhaps years.

Can the pedaling energy charge the battery of an electric bike?

Drowzzy

Can the mechanical energy of pedaling be stored as electrical energy to be utilized later to run the bicycle automatically? I'm not talking about pure electric bikes that need regular charging, and not even about those that you pedal for a while as the bike stands still and then run it on electric power. I mean can you ride a bike and store the mechanical energy simultaneously? Will it be efficient? If so, then are such e-bikes available in the market, and what are they called so that I may Google for them?

Here's the scenario: I need a bicycle for regular commute, may be even for covering long distances. It's not feasible for a layman to pedal continuously for more than 5 to 10 miles. So I'm looking for a bike that you pedal for sometime, and when you're exhausted, you simply flick a button to make it run on electrical power which has been converted and stored from the mechanical energy of pedaling the bike; and then pedal again and auto-ride again and so forth. Will something like that be technically efficient, since you're moving the bike while pedaling as well as storing your spare energy?

Hope I haven't confused you. Thanks :)

Answer
You will have to pedal extra hard to keep the bike going and to charge the battery. It could be done, but it would be easier and more efficient to pedal a regular (lighter) bike.

Maybe you could use a large solar panel to power the bike

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