Small batteries for Brompton

[cwah]

Discharge graph for NCR18650BE at 5A:

http://endless-sphere.com/forums/viewtopic.php?f=14&t=56549&start=175

So about 0.35v sag per cell, or 3.5V sag for a 36V9.6AH pack at 15A.

 

[Deleted member 4366]

To use those cells, you need a tab welder. Have you still got yours, and does it still work?

 

[cwah]

Yes I still do and I'm happy to help member here if we buy cells together

 

[JamesW]

Or Chris could go for the li-ion batteries from b&q mentioned in the small battery bargain thread without the hassles associated with Lipos for probably cheaper overall cost and no need for alarms
( they are back at £34 - cheaper if he can persuade an oap to buy them for him on a Thursday!)

 

[Keith Palmer]

Hello everyone,

I am about to embark on my first conversion, and after a lot of helpful advice in a different thread, I am moving the battery issue to a different thread - as I suspect there may be others interested in this one.

I plan to run a Q100H motor with a S06S controller. The suggested battery was a 10ah 36v skrinktube wrapped one from BMSBattery.

However, since I will mostly use the bike on short trips I am thining I could maybe get away with a (/pair of) smaller batteries.

Any suggestions for say a 6ah battery that would be lighter/smaller?

Also - I have seen this solution, employed by NYCewheels:

http://www.nycewheels.com/lithium-polymer-ae-split-brompton.html

Where they split the battery to supposedly make it legal to bring on airplanes. What kind of batteries are they using for this? And would this be a smart solution? (Would it really make it legal to bring onboard though?)

Thanks,
Chris

Che

Hello everyone,

I am about to embark on my first conversion, and after a lot of helpful advice in a different thread, I am moving the battery issue to a different thread - as I suspect there may be others interested in this one.

I plan to run a Q100H motor with a S06S controller. The suggested battery was a 10ah 36v skrinktube wrapped one from BMSBattery.

However, since I will mostly use the bike on short trips I am thining I could maybe get away with a (/pair of) smaller batteries.

Any suggestions for say a 6ah battery that would be lighter/smaller?

Also - I have seen this solution, employed by NYCewheels:

http://www.nycewheels.com/lithium-polymer-ae-split-brompton.html

Where they split the battery to supposedly make it legal to bring on airplanes. What kind of batteries are they using for this? And would this be a smart solution? (Would it really make it legal to bring onboard though?)

Thanks,
Chris

Hi Chris,

Check out www.conv-e.com and the article on the Brompton Conversion by a UK magazine - interesting reading