Endless Sphere

All I see now are white boxes instead of the imbedded youtube video.

"The simplest" is to use batteries that are good enough to not need balancing. I agree. However, I'd still prefer to use balancing charger or BMS during first few months of using new battery. I finished recently my 1 kW charger with built-in 100A BMS for my 24S6P A123 26650 battery. https://i.imgur...

3 years ago I bought new electric Ford Focus, and parked my ebike for good. But things were already getting sketchy in Toronto for ebikers. Too many idiots riding these stupid scooters all over the place. Sidewalks, drunk, no Dl, etc. Now I see guys on these things easily going 50 km/h in the city....

I am on the large Clydesdale size so I got the motor used for cargo bikes. ;-) I hope your terrain is flat and you're not expecting fun level performance. Did you inform Grin about the load you need to haul and terrain to be tackled? What size wheel diameter did you choose?...not 26" or larger I ho...

By "shuts down" do you mean everything turns off? If so, then it sounds like the battery is shutting down due to a low cell or a BMS problem. You need to check the battery to see that it is properly balanced. Is it all enclosed with only the primary battery leads coming out of the pack, or can you g...

I ran a lot of simulations using different combinations of motors. Will someone check my work. When you use dual motors are you supposed to put the total weight on each motor or split it between the motors. I put 330 lbs on the front motor and 180 lbs on the front one. Don't know if this is the way...

Any suggestions? Use a mid drive instead of two hubs... :wink: +1...Offroad and slow steep climbs is no place for a hubbie, though a mid-drive rear for most of the power plus a hubmotor on the front for 2wd makes sense and with the right motor and wheel size, the front wouldn't need active cooling,...

Would like to see that sort of frame geometry full rear suspension but with a real cargo rack, carry say 50+lbs. I agree. Great looking bike, but the rack looks spindly, so a beefed up rack would enhance the look IMHO. If it's just about strength that same rack with a well designed truss structure ...

Would like to see that sort of frame geometry full rear suspension but with a real cargo rack, carry say 50+lbs. Make that same rack with a well designed truss structure and 50lbs should be simple using the same material as long as the connections to the bike are adequate for the load. In fact, wit...

There are sources for smaller format modules of cells. Links please. I can't say that I spent an extensive amount of time searching, but my local search results amounted to very little. I'd consider importing, but who to trust and what to buy... Ebay...Endless-Sphere for sale section are 2 prime ex...

... While I love automotive grade modules, when can be even easier to assemble than a pack made of RC lipo, . You are of course exaggerating ! Several times, i have picked up stock RC bricks and used then to power various. different voltage Ebikes simply with the use of different pre-made harness.....

HK return policy is what sells lipos. I have seen alot of people get iffy results and they always make good. Sending known to be faulty rc lipo via any common carrier is likely to be against the law, and if it isn't, it should be...and people worry about exceeding 20mph ebike speed limits. :confused:

Slightly used cells are better than buying new, because as long as they're still balanced then the cells and their interconnections are already proven. While I love automotive grade modules, when can be even easier to assemble than a pack made of RC lipo, I understnad not everyone has the space to f...

EV etiquette tip# 1 for all charging stations. Include normal household type outlets for those with ebikes to charge their batteries. A simple coin operated timer and switch would work well once you see enough usage to justify the cost.

How will all those little magnets affect the inductance of your pack? As I understand inductance of a battery pack should be minimized to the extent possible, eg keep the loop of wire containing the battery from the controller + and - terminals as small as practical.

So, um, preference aside, am I to understand it that the best motor of choice for a given form factor will ALWAYS be the one that achieves top efficiency at the highest RPM withstanding pole count, lamination width etc? I've always found it curios that so many sellers advertise their highest rpm mo...

For any given battery and controller, you get more initial and maximum torque from a slower wind motor, so there’s that too. You can have more capable climbing and better acceleration from a stop, without having to spend more or carry more weight. That kind of restriction is like putting a gas tank...

For any given battery and controller, you get more initial and maximum torque from a slower wind motor, so there’s that too. You can have more capable climbing and better acceleration from a stop, without having to spend more or carry more weight. That kind of restriction is like putting a gas tank...

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So is there any efficiency penalty for selecting a kv that's way higher than you need? For example if your top speed was only 50% of the kv, limited using either the controller or just manual throttle control. There's very little loss in efficiency that way, and that occurs in the controller only a...

Place bigger orders for what you need and will need. Ordering $19 worth of anything online from anywhere is ridiculous. Think of the carbon release caused by such ordering.

If you don't mind my asking, where do you live? I've travelled to a couple different places to live now, in search of nice people and nice weather year round. I live in the central valley of Costa Rica, which abolished its military with the signing of the 1948 new constitution, so it's a peaceful c...

Since when did inside a garage become "outside"? To me outside means exposed to the elements. If course, that is why we keep it inside and heated. It is freaking cold here in the winter. -15 is a comfortable day, when we unzip out coats and take the coffee on the terrace of the ski center. :D I'm s...

Since when did inside a garage become "outside"? To me outside means exposed to the elements.

You need to go thru the setup process of the Cycle Analyst. Don't be discouraged, because you bike isn't running right simply because it's not sufficiently configured yet.