Search found 8461 matches

by 999zip999
Mar 23 2019 8:10am
Forum: Battery Technology
Topic: Scavenging one nearly new battery to make another?
Replies: 62
Views: 828

Re: Scavenging one nearly new battery to make another?

My A123 20ah pouch can put out 100amp. In real life and live long life . Can you fit the size ? Hold the weight.
by 999zip999
Mar 23 2019 4:55am
Forum: Resources & EV Related Parts and Services
Topic: Want to buy a custom made go kart?
Replies: 1
Views: 143

Re: Want to buy a custom made go kart?

Nice. If it ante rubbing it ain't racing !
Free test ride. Love it.
by 999zip999
Mar 21 2019 2:29pm
Forum: Battery Technology
Topic: Using 20-cell Li-ion pack and 24-cell LiFePo4 pack in parallel. Feasible?
Replies: 7
Views: 89

Re: Using 20-cell Li-ion pack and 24-cell LiFePo4 pack in parallel. Feasible?

Sounds like 120 lbs of battery ?. Should take care of sag. If I wish one battery to be bigger it would be lifepo4 because of its flatter discharge curve.
by 999zip999
Mar 21 2019 7:23am
Forum: Battery Technology
Topic: Using 20-cell Li-ion pack and 24-cell LiFePo4 pack in parallel. Feasible?
Replies: 7
Views: 89

Re: Using 20-cell Li-ion pack and 24-cell LiFePo4 pack in parallel. Feasible?

There isn't much energy or capacity above 3.5v in lifepo4 or 84 volts. The 24s will charge higher but will drop to it flatter discharge curve . As li-on losses voltage faster in discharge. But together? Let us know how well it works over time real life as I see this as a good combo for marriage 20s ...
by 999zip999
Mar 19 2019 8:53pm
Forum: Items for Sale - Used
Topic: Chevy Volt individual Cells FOR SALE. 10C 15Ah
Replies: 29
Views: 1552

Re: Chevy Volt individual Cells FOR SALE. 10C 15Ah

Learning the BBSO2. Yea I loved my muxus 28mm first day it melted. It took 4 weeks to melt muxus 3,000 5t. Two weeks to melt my edge 1,500. Keeping my new muxus 3,000 4t turbo running for 1 year. Its a learning process. I too think it's my batteries fault. Dam batteries.
by 999zip999
Mar 19 2019 2:08pm
Forum: Battery Technology
Topic: Scavenging one nearly new battery to make another?
Replies: 62
Views: 828

Re: Scavenging one nearly new battery to make another?

There are many favors of 18650 some 1amp cells some 30a cells. At 30amps it won't have much capacity. Because 18650 is the size or capacity of energy that can fit in the cell. How many amps is your controller rated for.
by 999zip999
Mar 16 2019 1:20pm
Forum: Battery Technology
Topic: Nissan Leaf Modules over 500 amps peak?
Replies: 19
Views: 271

Re: Nissan Leaf Modules over 500 amps peak?

Checked out your website you look like spinning magnets little brother. What's up with that ? Ceramic over didn't know we're having a spinning magnets look-alike contest.
by 999zip999
Mar 16 2019 1:04pm
Forum: E-Bike Technical
Topic: Fat tire speeds
Replies: 24
Views: 498

Re: Fat tire speeds

It depends on the tire rim combo. The first 4in pedago fat bike had a hard time keeping the tire on the rim. The tire with the spider design was really bad. But pedago use the cheapest of cheap parts as the rule.
by 999zip999
Mar 16 2019 12:36pm
Forum: Battery Technology
Topic: Scavenging one nearly new battery to make another?
Replies: 62
Views: 828

Re: Scavenging one nearly new battery to make another?

20s 18650 called 72volts 24s lifepo4 is called
72volts. You would need between 6 to 10 in parallel or as needed.
by 999zip999
Mar 15 2019 7:10pm
Forum: Battery Technology
Topic: Scavenging one nearly new battery to make another?
Replies: 62
Views: 828

Re: Scavenging one nearly new battery to make another?

Sorry sounds like cheap no-name battery China use as is. Just use it in within its rated discharge. Long time ago ping medical battery you also rated it. Kill a 48v 20ah old Ping on a 40amp controller. 2,100 watts for a 1,200 watt pack. Ping has better packs now. You don't. You buy shoes at Payless ...
by 999zip999
Mar 14 2019 2:03pm
Forum: Battery Technology
Topic: 3rd ebike battery. This time, doing it right
Replies: 80
Views: 3381

Re: 3rd ebike battery. This time, doing it right

Get some kool stop dual color brake pads.
by 999zip999
Mar 12 2019 2:27pm
Forum: Battery Technology
Topic: What battery to choose after your last one burned your house.
Replies: 43
Views: 1352

Re: What battery to choose after your last one burned your house.

Take those old cells and put in the backyard BBQ. New cells only name brand cells. I bought 35 Makita tool packs or 350 Makitne cells the seller can only find 27 Packs. The next day he found the rest to fill my order. I open the top on one and fire shot out the top of one cell. Happen 5 times more. ...
by 999zip999
Mar 12 2019 8:25am
Forum: E-Bike Technical
Topic: Motor and Controller Power Matching
Replies: 5
Views: 205

Re: Motor and Controller Power Matching

A motor also makes heat when it luggs or Troggs. Its making heat in sand and going slow in thick mud. For the most part. This gets magnified when you over volt it or over amp the motor .Do you have a 350 watt geared motor ? Geared motor can hoer heat longer or quicker than a 28mm dd motor.
by 999zip999
Mar 11 2019 7:13pm
Forum: Items for Sale - Used
Topic: Chevy Volt individual Cells FOR SALE. 10C 15Ah
Replies: 29
Views: 1552

Re: Chevy Volt individual Cells FOR SALE. 10C 15Ah

Now just ride normally and don't make every ride a test ride up the steepest Mountain or ride to the very bottom of the pack as the rule. Just learn it.
by 999zip999
Mar 10 2019 4:53pm
Forum: Battery Technology
Topic: What battery to choose after your last one burned your house.
Replies: 43
Views: 1352

Re: What battery to choose after your last one burned your house.

Remember when the debut the new Boeing plane and it's new battery caught fire I forgot why or what batteries they were using.
by 999zip999
Mar 10 2019 4:34pm
Forum: Items for Sale - Used
Topic: Chevy Volt individual Cells FOR SALE. 10C 15Ah
Replies: 29
Views: 1552

Re: Chevy Volt individual Cells FOR SALE. 10C 15Ah

You can charge them with one or two meanwells and monitor. The quality of the cells should make ez to keep balance like 4.1v . Test ride. Picture of that ebike grin.
What's the finish measurements ?
by 999zip999
Mar 10 2019 4:19pm
Forum: Battery Technology
Topic: What battery to choose after your last one burned your house.
Replies: 43
Views: 1352

Re: What battery to choose after your last one burned your house.

Hoverboard fires ?5years ago I worked at a pedago dealer I looked at how cheap there packs were made I told him to get a fire box and put the batteries in there with a pipe to the outside.
by 999zip999
Mar 09 2019 1:49pm
Forum: Items for Sale - Used
Topic: Chevy Volt individual Cells FOR SALE. 10C 15Ah
Replies: 29
Views: 1552

Re: Chevy Volt individual Cells FOR SALE. 10C 15Ah

Hey https://endless-sphere.com/forums/downl ... &mode=view
Four threaded rods cover with clear tubing with alternating plastic and aluminum blocks I threaded the aluminum blocks for sense wires or bms . I did put Vaseline on parts
by 999zip999
Mar 09 2019 1:16pm
Forum: Battery Technology
Topic: What battery to choose after your last one burned your house.
Replies: 43
Views: 1352

Re: What battery to choose after your last one burned your house.

I want the size of the 18650 pack I like having two connections on my 20ah cell I want it to fit in my triangle. So 80volts 20ah @ 80 amps. Long life. Pouch is ok. Right now I have heavy 24s A123 20ah for 5yrs 1,390 cycles 23,000 miles still good. But needs the triangle and rear rack yes big and hea...
by 999zip999
Mar 08 2019 5:21pm
Forum: Battery Technology
Topic: What battery to choose after your last one burned your house.
Replies: 43
Views: 1352

Re: What battery to choose after your last one burned your house.

I'm having trouble making up my mine. I have a 24s of A123 20ah and is heavy. A 16s is doable because of there hagh amps. I want a 18650 Samsung 30q 20s 9p. But all those connections and series buss bar proplem at 90 amps ?. All other 15ah 20ah cells don't fit evan A123 20ah are to big and heavy..
by 999zip999
Mar 07 2019 2:56pm
Forum: Battery Technology
Topic: Resistor Discharging Batteries
Replies: 5
Views: 204

Re: Resistor Discharging Batteries

What voltage are the cells now ? Are they the same voltage ? Only parallel and then drain cells if matched voltage. 180ah is a lot of energy.
by 999zip999
Mar 07 2019 11:10am
Forum: Battery Technology
Topic: 3rd ebike battery. This time, doing it right
Replies: 80
Views: 3381

Re: 3rd ebike battery. This time, doing it right

Is the battery balance before you hookup the bms ?
by 999zip999
Mar 07 2019 10:47am
Forum: E-Bike Technical
Topic: I have two new identical Q128 motors....one spins slower than other.
Replies: 5
Views: 213

Re: I have two new identical Q128 motors....one spins slower than other.

How'd you pay for it ? Make a complaint have them send you another motor they may just have you keep the first motor that they sent you and just send another one. Squeaky wheel gets the grease.