Fred E
Under $800
Answer
The better the battery the better the performance of an electric bike. Lead acid batteries are the mainstay to electric bikes in the lower echelon. Lead acid batteries tend to be heavy, bulky and good for relatively short bursts of power then they die. Nimh batteries can better sustain a drag on its power, it tends to be lighter, less cumbersome to manage and the service life of the charge out lasts lead acid batteries by a long shot. Then their are the lithium ion batteries. For the moment they are proven and the best of the best. Most laptop computers use lithium ion batteries. These batteries are better tied to higher performance, lower discharge rates, higher charging capacities, thus higher discharging capacities, not as bulky relatively slim and a reliably stronger pedaling assist as compared to its peers.
The price point for the electric bikes in the US is directly related to the type of battery. Electric bikes from Currie that can be purchased at a big box store can be purchase below the $800 price point with a lead acid battery. Giant and Trek both use lithium ion batteries. Their bikes are priced from $1800 to 2,600 USD. The long view would be how lucky are you to purchase a less expensive bike for $800 and you will get a trouble free 5 year service life. If you have to keep putting money into this great idea we know as an electric bike to keep it on the road, then the return on investment will be delayed or may never come. If you purchase two bikes at the $800 price point and allow for inflation of 5% or greater due to increased consumer demand and the product cycle of improvements; the cost of the two bikes within a 3-5 year period equals the original cost of a Giant or Trek sample from jump.
Best.
The better the battery the better the performance of an electric bike. Lead acid batteries are the mainstay to electric bikes in the lower echelon. Lead acid batteries tend to be heavy, bulky and good for relatively short bursts of power then they die. Nimh batteries can better sustain a drag on its power, it tends to be lighter, less cumbersome to manage and the service life of the charge out lasts lead acid batteries by a long shot. Then their are the lithium ion batteries. For the moment they are proven and the best of the best. Most laptop computers use lithium ion batteries. These batteries are better tied to higher performance, lower discharge rates, higher charging capacities, thus higher discharging capacities, not as bulky relatively slim and a reliably stronger pedaling assist as compared to its peers.
The price point for the electric bikes in the US is directly related to the type of battery. Electric bikes from Currie that can be purchased at a big box store can be purchase below the $800 price point with a lead acid battery. Giant and Trek both use lithium ion batteries. Their bikes are priced from $1800 to 2,600 USD. The long view would be how lucky are you to purchase a less expensive bike for $800 and you will get a trouble free 5 year service life. If you have to keep putting money into this great idea we know as an electric bike to keep it on the road, then the return on investment will be delayed or may never come. If you purchase two bikes at the $800 price point and allow for inflation of 5% or greater due to increased consumer demand and the product cycle of improvements; the cost of the two bikes within a 3-5 year period equals the original cost of a Giant or Trek sample from jump.
Best.
Questions about electric bike?
JK
Hi, I just got this electric bike second hand on craigslist - and it's working fine, but I have a few questions about it.
1. Do you remove batteries when you have the bike on the public bike rack to prevent theft? Or do you think that the lock mechanism is good enough to deter the theft? Of course I put U-shape lock on the bike body itself, but I wasn't sure what to do with the battery. It's removable, so for today, (first time out), I removed the battery and brought it with me to the office.
2. how long does this battery last? The previous owner told me she used the bike for two years. How do you know the battery is no good any more? She used it to climb up a hill (gradual, a short steep part, but not so terrible) daily about 1.5 miles. When should I consider getting new battery pack (and how much does it cost?)
3. Is there way to adjust the positioning of the switch to turn the power on because it's in a little awkward place to reach as of right now. (I like to turn it on and off to save battery as I climb up the hill).
Thanks!
to the first responder: I live in upstate NY and the town is full of hills. I dare you to climb the two large hills I just went down and climbed this morning. I'm a middle aged woman with shaky knees and I'm not going to put up with your nonsense. Perhaps you should think about what you say before you post it - and save some embarrassment. You won't dare say that to me in person.
to the second person: I want to turn it on and off because, if you've ever rode bike on a long hill, the incline is not even. Some parts are almost level, and I don't need the assist, but some other parts are steep, then I need assist.
And please only answer if you actually know anything about electric bike.
Also, this is the bike I got: http://www.giant-bicycles.com/en-us/bikes/model/twist.express/7335/44074/ I forgot to add this link in the initial post.
Answer
I would remove the battery. The battery life is determined by the type and the number of recharge cycles. If you turn it off to climb hills why bother with an electric bike. There is a good chance that you already need a new battery. The cost will depend on the type, Google is your friend.
Edit:
You replied without giving any more information about the bike. Most have a Controller that determines how much energy you use.
http://www.nycewheels.com/giant-part-twist-battery.html
Read this.
http://www.cyclepathbikes.com/giant/howitworks.html
I would remove the battery. The battery life is determined by the type and the number of recharge cycles. If you turn it off to climb hills why bother with an electric bike. There is a good chance that you already need a new battery. The cost will depend on the type, Google is your friend.
Edit:
You replied without giving any more information about the bike. Most have a Controller that determines how much energy you use.
http://www.nycewheels.com/giant-part-twist-battery.html
Read this.
http://www.cyclepathbikes.com/giant/howitworks.html
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