The Powerful 350W Brusless Motor Has Excellent Power To Reach Speeds Up To 12.5MPH And On Hills It Gives You The Power To Easily Reach The Top. Power: 350W. Turning e-Bike riders into explorers and ad…

Rated Capacity: 10Ah. Recommended to be used with 36V 250W electric bicycle motor. 36V 750W 20″ Front Tire e-Bike. Charge Current: 2A. Model: Bottle Type. 1 Year manufacturer warranty for CHARGER. Use…

This makes sense. Yes, it would be possible. You could wire balance connectors and extra discharge plugs to make three packs out of your one 13s pack, such as two 6s packs and a 1s, or two 5s packs and a 3s, etc. Then you’d charge each one, one at at time, using your imax B6 charger. It would take a while, but that’s how you’d do it. Just be careful to not get your connectors confused, as you’ll have three sets of balance wires and three sets of discharge wires.

This pattern continues until we’ve got all 10 parallel groups connected. In my case, you can see that the first and last parallel groups aren’t welded on the top side of the pack. That is because they are the “ends” of the pack, the main positive and negative terminals of the entire 36V pack.

36V10Ah Li-Ion NiCoMn “Little Frog” ABS shell ebike battery pack. Included 2p10s 5Ah polymer cells, 1pcs 15A continuous discharge current BMS, 1pcs 36V2.5Amps EMC-120 Lithium Ion battery Alloy shell charger.

Yep, that explains it. I was going to say that it sounds either like a defective BMS or more likely a connection error. B1 is definitely the negative end. Also some BMS units have B1- and B1+, others just have B1+. If it has both, it will have X+1 sense wires, where X is the number of series cells in the pack.

I should really change that $2 cutoff to more like $2.50, which is more reasonable for quality cells. Basically, the cheapest ‘good’ cells are Samsung 26F cells, which can be had for usually around $2.50 – $2.90 if you are buying in any large quantity, like at least 100. Expect to pay more like $3.00 or so if you’re buying only 40 cells. 26F cells are also limited to 5A discharge though, so you’ve got the same issue as with the NCR18650B cells from Panasonic.

You’ve done your math correctly, though that “1000W” figure is largely arbitrary, and probably not the exact power level of the kit. Most 1000W kits I’ve seen use controllers in the 20-25A range, but it can vary greatly.

Regarding the cell question, its a mixture of both. Cheap ebikes use cheap cells. You can bet the Sonders ebike had the cheapest cells available. Name brand ebikes usually use Samsung cells, but sometimes LG and occasionally Panasonic cells can be found in name brand ebikes (the Panasonics are some of the most expensive and so they are rarer). That being said, I’ve seen some shadier internet sites selling high quality (and genuine) Samsung/Panasonic packs, and I’ve seen some nice ebikes with some no-name cells. You should always check with the vendor/manufacturer if you want to ensure you’re getting good cells. Unfortunately, it can be hard to verify the cells yourself though without voiding the warranty, as they are usually sealed under shrink wrap. A good vendor will be happy to confirm the cells for you ahead of time and may even be able to show you some pictures of opened packs to verify.

Lipo batteries are currently the “hottest” battery choice for electric bike enthusiasts. LiPo batteries are the most power-dense type of  battery available to electric bike riders today. The problem is that LiPo battery packs for e-bikes are hard to find, especially one with high output if you are building a racing bike for riding off road.

Switching gears briefly, if you are a bike mechanic, shop owner, or hobbyist that works on electric bikes (including conversion kits)… you may be handling batteries that have problems, have been damaged, or have a history that you simply do not know. And in some cases, as shown by the recent fires caused by cheap Lithium batteries installed in ‘hover boards’, new products from low cost producers can be risky. Perhaps that is why we now see fire-resistant bags specifically designed for hoverboards which may also be used to store your ebike battery. These bags are designed to safely extinguish a hoverboard fire by suffocating it (not allowing Oxygen to reach the fire) but I have not tested them and Lithium fires can still be very difficult to contain.

With a budget in mind, here is a 36V charger (output 42V, exactly what a 36V li-ion pack needs) that I have used and found to be a good budget charger. It’s not super fast, at only 2A, but for just $20 shipped, it’s a great deal. You might have to wait about 3 weeks for it arrive from China though.

Well, we here at are glad you asked! As of this month (Feb 2013), nobody is selling completed packs with the new NCA chemistry to the public, but the cylindrical cell that will be up to bat next is…

We sell roughly equal numbers of 36V and 48V battery packs, and all of our conversion kits and controllers work fine with both 36V and 48V (or 52V) battery options. Just because 48V is a larger number, it does not mean that a 48V ebike is intrinsically better / more powerful / faster than a 36V ebike despite what the ill-informed internet will lead you to believe. However, it is true that a given motor will spin faster at a higher voltage, and usually higher speeds will correspond to more power consumption. For most of the stock hub motor kits that we offer, a 36V battery will result in a commuting speed of 30-35 kph, while wth a 48V battery will result in closer to 40-45 kph.

18650 cells, which are used in many different consumer electronics from laptops to power tools, are one of the most common battery cells employed in electric bicycle battery packs. For many years there were only mediocre 18650 cells available, but the demand by power tool makers and even some electric vehicle manufacturers for strong, high quality cells has led to the development of a number of great 18650 options in the last few years.

That’s right, every customer we know who has broken the speed requirement for their eBike has injured themselves. Secondly, if we did the modification and someone injured themselves, they might sue us, and it simply isn’t worth losing our shop for a few dollars.

I am having 36v lithium battery with 4.4 Ah(segway -balancing wheel battery pack ) but i want to convert this battery in to 36v with 9 ah is it possible to add one more 36v lithium 4.4 ah battery with this and i can use as 36v 8.8 ah battery ???? please help me iam not getting lithium battery in india for my e bike [redirect url=’’ sec=’7′]

Click here to get this post in PDF