I need help

Ah, the samsung 33g

1713409350964.png

I'm gonna assume your pack is 18ah based on that cell. And also assuming these are genuine 33G cells ( not sure )

These do allright on 1C continuous ( 18ah x 1 = 18A )
Peak ( not continuous, for 5-10 min when accelerating ) @ 2C = 36A is the point where we're starting to make significant heat and sagging a lot, we don't really want to push them further. Performance and cycle life just get bad. We create a fire risk if we heat them up too much for too long.

I'd say if you set a current limit for 35A and make sure your motor isn't pulling >25A continuously, you're good. But i'm betting you have a motor that's designed for high speed, which might be bad.

What kind of motor do you have?
 
neptronix said:
Ah, the samsung 33g

View attachment 351301

I'm gonna assume your pack is 18ah based on that cell. And also assuming these are genuine 33G cells ( not sure )

These do allright on 1C continuous ( 18ah x 1 = 18A )
Peak ( not continuous, for 5-10 min when accelerating ) @ 2C = 36A is the point where we're starting to make significant heat and sagging a lot, we don't really want to push them further. Performance and cycle life just get bad. We create a fire risk if we heat them up too much for too long.

I'd say if you set a current limit for 35A and make sure your motor isn't pulling >25A continuously, you're good. But i'm betting you have a motor that's designed for high speed, which might be bad.

What kind of motor do you have?
Click to expand...
So 35 amp controller max I'll have to get that kit then whaT thats 1800 watts I actually haven't bought the kit yet cuz I wasn't sure what to get I was gonna get the 40 amp max controller that's 20 something amps continous but to be safe I'm gonna get the 35 amp max what thats like 300 watts difference only ..I'm looking at the kit with the mtx39 wheel i think it is if I remember correctly the co troller is a yf35s foc sinewave
 
Good thing you didn't buy a kit yet!
I'd aim for 1500w max, 30mph on a typical kit will use 1000 watts continuously which is close to the sweet spot of the battery.

What's this kit you're looking at?
 
Just get a cheap kit with
Why don't you answer the questions so we can help you I'll better organize the questions new one two three and four charger ?th display as the led battery level doesn't work. Did your battery come from how about a link ?
I'm still asking questions to find out what's going on help you as quickly as possible it's frustrating when you don't follow and answer the questions I'm going to put them in the miracle order what I can think of from this time on.
 
1. Where do you live ?
2. Where did you get the battery did it come with the charger please give us a link
3. I second the notion of a 1500 watt kit.
 
999zip999 said:
1. Where do you live ?
2. Where did you get the battery did it come with the charger please give us a link
3. I second the notion of a 1500 watt kit.
Click to expand...
Im in the US in california and yes it came with charger and figured out 35 amp max I got in touch with seller on ebay cuz I didn't pay for this i payed for what was advertised and whats in it is samsungs 33g 18650
 
Good job. Get it right and tell him the sooner the better you did a good job there.
If you want to get a better 1500 watt kit get a leaf. They talk about it in in the here all the time you can easily find the thread on that
 
Last edited:
999zip999 said:
Just get a cheap kit with
Why don't you answer the questions so we can help you I'll better organize the questions new one two three and four charger ?th display as the led battery level doesn't work. Did your battery come from how about a link ?
I'm still asking questions to find out what's going on help you as quickly as possible it's frustrating when you don't follow and answer the questions I'm going to put them in the miracle order what I can think of from this time on.
Click to expand...
I have answered look at everything I've said
neptronix said:
Ah, the samsung 33g

View attachment 351301

I'm gonna assume your pack is 18ah based on that cell. And also assuming these are genuine 33G cells ( not sure )

These do allright on 1C continuous ( 18ah x 1 = 18A )
Peak ( not continuous, for 5-10 min when accelerating ) @ 2C = 36A is the point where we're starting to make significant heat and sagging a lot, we don't really want to push them further. Performance and cycle life just get bad. We create a fire risk if we heat them up too much for too long.

I'd say if you set a current limit for 35A and make sure your motor isn't pulling >25A continuously, you're good. But i'm betting you have a motor that's designed for high speed, which might be bad.

What kind of motor do you have?
Click to expand...
I'm sending battery back tomorrow and they gonna send right one out its on ebay but I still think I'm talking to a Asian dont understand me well asked him 4 times what kinda samsung 21700 cells all he says is samsung 21700 5000mah
 
Ask for the model number. Tell him Samsung makes a lot of different grades of 21700 . Like Kung Pao chicken and sesame shrimp they're both Chinese dishes but they're two different Chinese dishes. And Samsung makes a lot of different 21700 cells so what the model number. As with Chinese food there's more than one dish and Samsung has more than one 21700 cell. Break it down for him. Tell him you want to talk to the technical department since he does not understand. And you're not able to answer the question. Please let's not waste time. Or a sale ?
Don't let them push you around.
You obviously don't know what you're selling.
Please give me someone with knowledge as you're wasting both of our times.
Get right down to the brass nuts.
If you waste my time I'll go somewhere else.
Toughen up buttercup.
 
I'm also surprised!
 
Also, hope you don't get fined if you shipped it without going through a HAZMAT broker.
 
E-HP said:
Wow! Can you share some info on the shipping process, the carrier, and how much the various fees added up to?
Click to expand...
Shipping process was easy didn't have to ship out of country or anything was actually in the same state as me california not sure of the company but the user name on ebaY is lithumbatterypack and it cost right under 40 dollars to ship from central California to Chino california and thats with insurance and also telling them It is a ebike battery and delievery confirmation
 
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