Brake lever with low voltage switch that is used to cut off electricity and slow down or stop electric bike.Electronic, mechanical double braking system,improve braking performance.It’s much safer. Brake lever with low voltage switch that is used to cut off electricity and slow down or stop electric bike.Electronic, mechanical double braking system,improve braking performance.It’s much safer.
Thank you very much for quick answer. You give me a good advice and I will use it. To sum up, now I am on the cross Li-ion or LiFePO4, can you sugest me some othre examples like Panasonic 18650 which you tested and you clame are good batterys? For BMS, is there special tipe which are good or there is no different or just like you says it must be for a bit stronger etc. batterys give 30A we must have a bit stronger BMS like for 40A?
I have a Stromer ST1 and I just got my wife the Optibike Pioneer allroad. We both are short (5’6″ and 5’4″, 150 pounds and 100 pounds) but we pull our sons in the Weehoo Trailer. So that adds another 60 pounds. We have very steep hills in our area. We just took our first ride with the optibike and it feels like it has about 1/2 the power on the steep hills as the Stromer. I thought the mid motor would do better on hills (optibike is 500W mid mount, stomer is 600W rear hub). Can you help me understand this and help with a better option for more power? Thanks! Oh, and I should add. We want peddle assist and throttle modes.
Electric bikes, bicycles propelled by a motor and battery, are not new. In fact the very first e-bike was documented in the 1890’s! Since conception, electric bikes have come a long way. And in the last few years, momentum is gaining. But there is a secret the big electric bike companies don’t want you to know….
3. i saw 18650 and 26650 li ion batteries which are more powerful such as 6000 – 8000 mah. i think they are fake??? i need 48v 10ah or 20ah minimum i guess as a pack ??? your advices are important. thanks for all…
You can buy LiFePO4 straight from China from Ping Battery. These batteries are a little bulky, but are safe, and will last over 1000 charges. You can also buy ready made Lithium Iron Phoshate (LiFePO4) or Lithium Polymer (LiPo) packs from BMS battery.
Modern E-Tube networking: the wireless Di2 EW-WU111 by Shimano. The EW-WU111 can be connected with your smart phone, tablet or PC and once connected it shows the gear and the current battery status. The connection between the two devices is made over the new E-Tube App via Bluetooth®.
ElectricRider still has a few 4840 Phoenix Cruiser kits, 1000W Bafang kits, RoadRunner II Motors, and a lot of parts. If you need help placing an order or have any questions, please send an email to [email protected]
This article first appeared in Electric Bike Report in June of 2013. Since then, we’ve made some changes to our motor selection – our Direct-Drive motors are now all High-Torque 6×9 wound, so they run slower (approximately 15mph at 36v or 20mph at 48v), and our Geared Motors have been replaced by a 500w version, (approximately 20mph at 36v or 28mph at 48v). The Direct-Drive is now our Heavy-Duty motor and the…
A very affordable 13S BMS that I like is this 30A version, though it can take a few weeks or even a month to arrive since it’s coming all the way from China. http://www.aliexpress.com/item/13-lithium-battery-protection-board-48v-lithium-battery-BMS-30A-continuous-60A-peak-discharge/1741121963.html
Please share a link to the models you are considering, I’m not sure I can comment on failure or corruption. Usually my reviews are limited in scope and I don’t have exposure to the durability of different designs (especially outside the US).
We do not deliver on Sundays, but do sometimes deliver on Saturday depending on the carrier that is delivering your order. The best way to determine the date of delivery is to check the status in My Account .
Bafang (8Fun) is a Chinese manufacturer of electric bike motors. Bafang is one of the world’s largest producers of motor systems, primarily front hub geared motors for the European market (primarily the Netherlands). Besides front hub motors, Bafang also produces a range of rear hub drives, a simple mid-drive motor, and ebike components such as consoles (HMIs) and battery packs.
My daily driver ebike has 8 cells paralled (14s8p) and it’s been working great for a long time. You can certainly make two 13s4p packs and parallel them after the fact, but don’t be afraid of making a single pack. As long as you use good quality cells, the risk of a parallel group dying is incredibly small.
Just kidding, here’s a little more detail. 1) Yes, actually you could just use one strip of nickel on series connections to make the electrical connection, but one strip of 0.15mm thick nickel strip can only safely carry less than 10A. Ideally you want at least one strip for every 5-7A you plan to pull through the battery. 2) You can definitely do the series connections first, it is just habit for me to do parallel connections first. Also, on larger packs I like to do parallel groups first and then glue them together and do the series connections as I glue each group. 3) People have explored this idea a bit on Endless Sphere, and while it can be done, it has a lot of room for error, mostly in keeping the spring loaded contacts permanently against the cell terminals and in keeping the contacts from corroding. Spot welding is the best method, in my opinion.
Monster Scooter Parts is a worldwide distributor of electric bike parts. Our inventory of electric bicycle parts include a number of very popular electric bike conversion kits. These cleverly designed bicycle parts convert an old but functional pedal bicycle into a really convenient and economical battery powered work horse.
Electric bikes are a great way to get in shape, stay in shape, run errands and travel. Electric bicycles have enough power and enough range to let you revamp your entire commute and leave the car at home. Above all, electric bikes are a blast to… learn more
Glad to help! It’s an interesting time for ebikes because some states and cities place restrictions but the national law is < 20 mph unassisted and < 750 watt motor = bicycle. I've been to towns where citizens have challenged the local rules and won... and the rules are rarely enforced for people who are riding responsibly. If you were concerned about legality batteries electrical the event of an accident it might be worth looking into bicycle insurance.
A Carbon fiber electric cross country mountain bike with premium components and ultra-integrated motor and battery system, excellent weight distribution. The Brose motor is quiet and responsive offering up to 90 Nm of torque output,……
You’re absolutely right that doubling the capacity of the battery by running two packs in parallel will essential halve the load on each pack, but I still don’t think it would get it down to the level that you could rely on compression fit spring contacts to safely carry that current, let alone the balance issue of not having the 4 groups individually paralleled at the cell level.
I use white 2mm thick craft foam and cut out a shape slightly larger than my pack. I wrap it up and seal it with electrical tape. It doesn’t have to be pretty, it just has to cover the pack. Your next step will hide the foam from view.