American Made Lithium Battery Packs

[Ykick]

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[amberwolf]

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[lester12483]

We have 48 volt and 36 volt lithium manganese batteries available. Much lighter than lifepo4 and safer than lipo. Check it out...

http://www.chicagoelectricbicycles.com/Batteries.html

[lester12483]

I found your answer to a non lifepo4 48V battery


http://www.chicagoelectricbicycles.com/Batteries.html

[lester12483]

We sell next generation Lithium Manganese (LiNMC) battery packs made in Chicago, IL USA. We have both 36 volt and 48 volt batteries available.

If you need a customized battery pack for your Electric Vehicle (EV) project visit our website http://www.chicagoelectricbicycles.com/Batteries.html

[999zip999]

Lighter is better but what c-rate at 48v or what can I set my C.A at ( amps # ) and not kill this battery with a bmc 600 h.s.

[lester12483]

Anyone else feel that this is the year ebikes can make a comeback? I do. Or is it sales always increase this time of year?

With the geo political climate and rising gas prices I think the perfect storm is brewing.

[lester12483]

The batteries are rated at 2C.

[veloman]

The batteries are rated at 2C.

Technical Specifications for 48V and 36V packs:

Maximum discharge current 20A continuous
Maximum discharge spike 25A for < 2 seconds
Specific Energy: 154 Wh/kg
Average Lifecycle of the pack: >85% capacity after 1000 cycles.
Cell Type: 18650 2.4Ah
Maximum charge current: 10 A
Operating temperature range: “0 – 45°C
NO memory effect
2C Rating

Aren't "rated" values suppose to correlate with the # of cycles the battery is rated for (1000 in this case)? If so, I don't see how you can say it's rated at 2c, which is it's *max* continuous ability.

[lester12483]

The batteries 2C rating is what the engineers at allcell told me.

[dogman]

Whatever the rating is, you rarely see a cycle life test results at that rating.

Some will do the cycle life test at 1c, others may do it at .1 c. In this case, the above specs do not tell you what c rate the cycle life tests were done at.

Additionally, they generally give cycle lifespan for a single cell, not the chances that say 50 cells will all make it to 1000 cycles when put into a pack.

Ping, for example tests his 2c battery at 1c. Using it most of the lifespan at 1c, I was quite happy when my original 1c rated ping went 700 cycles.

[999zip999]

Can we please have a moment for dogman's Ping, and all it has given to this forum. Has it been taken apart for your headlight yet.

[briogio]

I like your optimism!

I've got an electric (conversion) bike, but because my commute is too far (80 miles round trip).

I'm really waiting for someone to build an electric, aerodynamic, tadpole (leaning?!) trike, using as many mass production parts as possible. Hey maybe that someone is me! no production though, just a one off.

[neptronix]

Gas prices.. check.
Spring.. check.
Economic uncertainty.. check.

http://www.google.com/trends/?q=ebike

Google trends showing record interest this year.. check.

Enjoy the sales, guys

[lester12483]

I am just glad to see more people considering buying an ebike. It's really a better option than a gas scooter for getting around.

[lester12483]

You can use our batteries in almost any electric bike. It mut be 36v or 48v and direct current DC.

[JanicekTrnecka]

From my opinion , e-bike parts started to be available for reasonable prices (Gas prices helps this also).

And why I am motivated to "have" an e-bike?

My motivation points:

-gas prices
-economy / ecology
-in car I am not movin a muscle...
-it can be faster than car in some conditions.
-I am not tree-hugger, but I like the idea not to move 2Tons of steel just to trasnport 80kg for quite short distance.
-gas powered scooter has to be "road legal" , e-bike just should.. its tolerated....

[Phoebus]

Will pulling 1000W from the 48v12Ah be pushing things too far? I am not looking for 1000 cycles... but not 100 either. Anyone have any experience with this?

[Kin]

Phoebus, if your max power is 1000 watts (i.e, 20A), I dont think its too much. The majority of the time you will not be running 1000 watts. You will however be at the edge of this pack. Some of the 20A controllers actually allow through more than 20A, so make sure you're actually dealing with a ~20-22A controller.

The exception to this response is that if your usage pattern involves a lot of hills, even small hills over a long distance, you're liable to be pulling that max rating for a longer period of time (which is bad).

Just if you choose to go this way do so with caution. People have a lot of mixed responses about this 2C rating. 2C is definitively at the max of the pack. Bear in mind I am speaking from observation and not personal experience, though Im not sure one is particularly more valid than the other in this case.

[geetarboy]

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(217.73 KiB) Downloaded 3 times

Just installed the 48V 13AH battery on a conversion job for my 1st paying customer. I set the CA for 25amps which is about 1400 watts fully charged. Performance seems good so far, I just hope it lasts....

[kevo]

http://www.ft.com/cms/s/0/9ecf3158-e536-11e0-bdb8-00144feabdc0.html#axzz1r8dm6uIx

...analysts expect to see ebike sales in the Netherlands up 20 per cent or more, and sales in Germany up as much as 50 per cent.

[eva-michael]

Ebike becomes more and more popular.

It will be a very good option to commute to a not too far working place.
Courier are driving their ebike to deliver small parcels.
Resident just drive an ebike to buy things in residential zone.
It can cover 15-25 miles cycle in a very low cost.
It saves money for you and you have more money to improve your life.

And even you have a car, you still will still need a bike or ebike as it's a samll and convenient vehicle.

geoline is getting less and less. And of course, the price are getting higher and higher.
Also it's not possible that every people drive a car(about 4-6,000,000,000 cars) even if it takes money as a ebike. Waste and emission will just harm people.
Environmentally friendly, practical and economical life will be the trend of development of future.

[Jason27]

9 months now still going strong.

[Jason27]

Michael did you just get out of bed in that picture?... lol

[Lock]

http://www.google.com/trends/?q=ebike
Google trends showing record interest this year.. check.

It's possible OP was just thinking USA... in which case he may wish to move to the west coast:
http://www.google.com/trends/?q=ebike+&ctab=0&geo=us&geor=all&date=all