Recent content by Maniaccts

I have a battery I just built from 2170 cells. I want to pot the top and bottom of the battery. What is the preferred method? I have some left over Redgard and fiberglass tape from a walk in shower job. Could this be used?

Interesting

It is out of the middle of the Tesla 3 battery pack. The coolant channels are aluminum coated in a plastic like material. It runs the length of the battery every other row. I cut across the channels however cutting thru it damages several cells. It was only possible for me once I dissected the...

The volt battery performed nicely, it was a modded meanwell that short circuited while charging that ultimately fried the battery. I don't think you can have both factory wiring and keeping it close to bike width. You could possibly maybe get a large section cut out with the original busses but...

It is just that. A chunk of the whole battery. I suppose you could remove pieces following the pattern the factory had them connected. They are in a intricate pattern so it wouldn't be easy nor practical for most because the amount of cells connected in parallel. The whole battery is dismantled...

Has there been a determined preferred way to wire together a pack? I know some are against the solder/fuse wire method. Would it be in better interest to invest in a spot welder?

The top center of all cylindrical cells such as the 18650s and these tesla 2170 are positive. The top edge, sides and bottom are negative. That is why they usually wrap them and add the insulator ring. In the close up cell top picture you can see the weld spots for both positive and negative...

Figured I could do fuse wire like the way it came. Similar to this without flipping the batteries. quote=EbikeAus post_id=1365637 time=1521369971 user_id=57424] All I can say is hard work and a lot of time. Felt like a surgeon trying to dissect the thing. Definitely wont be doing it...

Yes, all cells were positioned the same direction across the whole battery. Many (I believe) aluminum buss bars connected all the batteries via fuse wires to the top of each cell. Either to the positive center or negative top edge.

Milage was less than 3k. Came out of California. Selling groups of individuals cells that would need be configured anyway you want. Can be built in any series or parallel configuration. Most that can be shipped is 60 per box. Not sure on the amp rating as nobody really knows yet. I have seen...

Previously had a 15s1p chevy volt battery mod in combination with my 9c m3004rc motor. Was really impressed with the match but unfortunately burnt the battery out. Pulled 34mph and got me around everywhere i needed to go. Just recently got the Tesla Model 3 battery in and managed to keep a...

Nine Continent m3004rc motor as a back hub bought from grin at ebike.ca for $148. I have a home built 62.5v 15ah lithium battery. It's my daily driver, hits 35mph fresh off the charger and runs about 20 miles. Not sure the controller specifics as it was a free replacement of a old sinewave...

Figured out the issue I think. Opened up the controller and immediately got a whiff of burnt electronics. Upon further examination I found 2 of the 11 mosfets broken in half, and 3 others cracked. Guess thats what I get for buying it used of ebay.

I have the batteries motor and controller all plugged up without a throttle and when I turn it on the motor goes. I wouldnt think its full speed just doesnt seem like it. Its the stock motor a brush 24v 20amp motor. The oem contoller is a 35amp ananda. The replacement kelly is 200 amp max set to...

Ok, I have an old mongoose CX450 bike. I upgraded the battery from the stock 24v SLA to recycled lithium batteries running 36volts. I burnt the stock controller out last year as well as the controller that replaced it. I recently made 1p9s lithium batteries from a chevy volt module and bought a...