Recumbent Bicycle Source
100 W
First before I start this post... I searched and didn't find information on the Amped Bikes Batteries that I was looking for... so here goes.
This is from their Website:
"Tube inframe batteries, Our inframe mounted tube batteries were designed by us from the ground up. We are now on our 3rd Generation. All new tube batteries are 36V 12AH Samsung LEV batteries designed for electric vehicles. They have 1200 DOD lifecycles (dod= fully charged to fully empty) It is very rare that they are fully discharged. It normally equates to about 2,000 charges. After that the battery will drop to 84% capacity. So they should last well into your 3rd or 4th year depending on how many days a week you ride. Our tube batteries have the lightest weight to capacity ratio on the market for safe LEV batteries. Coming in at 6 lbs for 36V 12AH"
6lbs seems pretty amazing considering that other batteries in this power class are about 11-12lbs. This makes me wonder about the chemistry. I don't know what "Samsung LEV" means. Is this LiMn?
The canister seems like a nice idea if you want to use bottle cage mounts, but I still want to put it on a rack inside a bag so it's not an advantage for me... actually a disadvantage as it would roll around. But the weight is enticing.
Now for the part which makes no sense to me at all from there site:
"Lifepo4, (lithium iron phosphate) are in fact the best technology out there but unfortunately they are very sensitive batteries. Many companies claim up to 2,000 lifecycles but unfortunately the proper BMS (battery management system) and cell balancing system circuit board costs more than the batteries themselves. I personally have 14 on my shelf and none have lasted more than a month due to poor BMS or cell balancing circuit."
None have lasted for more than a month? I find this disingenuous and makes me not trust the site at all. It's one thing to advocate for your product, but this is beyond disparagement and for me is a total turn off as a consumer. Clearly people are having great success with LiFePO4 chemistry in electric bicycle applications.
Back to the weight. With a geared front hub... after pulling the existing wheel you add about 6lbs to an average bike, maybe as little 5lbs (New electric wheel - old existing wheel). Then you add in a 6lb battery and a controller and you are adding about 12-14lbs total to a bike with the benefits of a 15-30 mile range. That's pretty impressive because it doesn't alter the handling characteristics of the bicycle that much. This is great for people who like to ride bikes but don't want an "Electric Motorcycle".
So I'm soliciting opinion on this Battery... not much in the way of Specs on the site.
Has anyone cycled any LiFeP04 product more than 500 times?
This is from their Website:
"Tube inframe batteries, Our inframe mounted tube batteries were designed by us from the ground up. We are now on our 3rd Generation. All new tube batteries are 36V 12AH Samsung LEV batteries designed for electric vehicles. They have 1200 DOD lifecycles (dod= fully charged to fully empty) It is very rare that they are fully discharged. It normally equates to about 2,000 charges. After that the battery will drop to 84% capacity. So they should last well into your 3rd or 4th year depending on how many days a week you ride. Our tube batteries have the lightest weight to capacity ratio on the market for safe LEV batteries. Coming in at 6 lbs for 36V 12AH"
6lbs seems pretty amazing considering that other batteries in this power class are about 11-12lbs. This makes me wonder about the chemistry. I don't know what "Samsung LEV" means. Is this LiMn?
The canister seems like a nice idea if you want to use bottle cage mounts, but I still want to put it on a rack inside a bag so it's not an advantage for me... actually a disadvantage as it would roll around. But the weight is enticing.
Now for the part which makes no sense to me at all from there site:
"Lifepo4, (lithium iron phosphate) are in fact the best technology out there but unfortunately they are very sensitive batteries. Many companies claim up to 2,000 lifecycles but unfortunately the proper BMS (battery management system) and cell balancing system circuit board costs more than the batteries themselves. I personally have 14 on my shelf and none have lasted more than a month due to poor BMS or cell balancing circuit."
None have lasted for more than a month? I find this disingenuous and makes me not trust the site at all. It's one thing to advocate for your product, but this is beyond disparagement and for me is a total turn off as a consumer. Clearly people are having great success with LiFePO4 chemistry in electric bicycle applications.
Back to the weight. With a geared front hub... after pulling the existing wheel you add about 6lbs to an average bike, maybe as little 5lbs (New electric wheel - old existing wheel). Then you add in a 6lb battery and a controller and you are adding about 12-14lbs total to a bike with the benefits of a 15-30 mile range. That's pretty impressive because it doesn't alter the handling characteristics of the bicycle that much. This is great for people who like to ride bikes but don't want an "Electric Motorcycle".
So I'm soliciting opinion on this Battery... not much in the way of Specs on the site.
Has anyone cycled any LiFeP04 product more than 500 times?
