Recommendations? 48v Lithium Battery

[eDahon]

My uncle bought an ebike hub motor conversion. It is an inexpensive one from amazon:

http://www.amazon.com/Electric-Battery-Powered-Bicycle-Conversion/dp/B00GIXZKP8/ref=sr_1_6?ie=UTF8&qid=1431375011&sr=8-6&keywords=48v+ebike+motor

Says it is 48v 1000w. Not sure if the 1000w is accurate but will have to assume so at this point. Anyways, he is looking for a lithium battery, either lithium ion, polymer or phosphate to use in place of the heavy lead acid batteries. Do you have any recommendations. He would prefer a downtube mount such as the watter bottle mount type. Need something that can put out 20-25w continuous without huge voltage drop and that is reliable. I told him it would cost around $400 so that's the budget.

Thanks!

 

[Nobuo]

This bottle battery has a good reputation, not bad for the price. however the cells are not high quality ones, maybe chinese.

the years it will be useful.. is unknown

http://www.aliexpress.com/store/pro...lectric-bicycle-e-bike/222587_1669950257.html

 

[999zip999]

Calibike has one for 500.00 48v 15ah. There in califorina easier for service. It depends on the controller that came with the kit. How much is the amp draw of the controller. You need the battery to match the controllers demands. The bottle battery might not be strong enough. It depends on the cells they use. It also depends on hills ect.

 

[eDahon]

I don't know the specs on the controller. The motor is 1000w so I would like a battery that can handle up to 25A continuous to be safe. Of course I don't know if the controller is rated that high or if the motor can truly take that much current. The 15A bottle battery may not be sufficient as it says 15A.

 

[wesnewell]

The controller is likely a 26A max controller. All I use is rc lipo, so I'd use a 20C 12s rc lipo pack. AH size to be determined by what he needs, but it could be as small as 5ah and still have plenty of power rated for 100A.
http://endless-sphere.com/forums/viewtopic.php?f=3&t=66302

 

[striider]

I have pretty much the same kit, but with LCD. You will get a 26 amp controller such as this: http://www.endless-sphere.com/forums/download/file.php?id=164705&mode=view The previous battery recommendations will be fine for most applications, assuming he doesn't have special range/incline requirements or a heavy throttle hand. I run a Lithium Ion 20AH battery and have roughly a 30 mile range with some hills and a fair amount of pedaling.

 

[999zip999]

RC lipo is not for a beginner you should have much prior experience with rc lipo first. Not a plug and play battery more of a hobby battery with special needs.
A plug and play battery is more user friendly and less dangerous.