do you have to wire the ground end (the middle of the 3 prong end of the charger) so the fuses stop snapping or so
cause my battery is same watts as my ebike and the batteries charged so i cant think of any other reason the fuses keep snapping after 4 seconds of the ebike being turned on and giving a little throttle (barely move it)

Sounds like there is a short somewhere. Lift the rear wheel and try to use the throttle then. If the fuse still blows, then something is shorted.

It ran when in air i think once but on ground it snaps

I'm not sure what you are doing. It sounds as if you are running the motor a little with the charger still plugged in. If that is what you are doing that should pop the fuse, to protect the motor and the charger. Don't do this no matter the rating is on the charger. You will damage something. It's not built to operate this way. The power to move the wheel is far more than the charger can handle.

Im only using the plugs its not charging as well i got battery n the enginevthing in bag plugged together but no charger

I will repost here what I put as a response in your other thread on this topic:

Which fuse did you blow and how many amps is it rated for? Perhaps it's a fuse in the battery to protect the cells? The specs for that inexpensive V-power battery say max 20amps continuous discharge and there may be a fuse in there to protect the pack. With a 1000 watt motor/controller, it would not be unusual for it to try and draw more than 20 amps when you are leaning on the throttle.

So..what is the amps rating on the fuses you are blowing (should be written on the fuse)? You are likely drawing more than that. When the wheel is in the air, there is little load and little current drawn. When it is actually on the ground and facing resistance, the current draw goes up (and even more when going uphill).

As above, according to the specs that pack is rated for 20 amps. They may have put a 20 amp fuse (or less) in there to protect it. All I can think of that you can do is put a higher rated fuse in and take the risk of over stressing the battery/BMS.

Bottom line - a "1000 watt" motor is hefty and needs amps to drive it.

Thtv'se volts are 250 vuses by 10amp thats what came with the battery

The fuse were the battery is i showed pictures

10 amps is not enough. Get a 20 amp one and try that. If it still isn't enough then you will have to go even bigger... although the pack is only rated at 20 amps, so there is some risk with going bigger.

Yeah but i read reviews that said 10amps will work but is not going to take you as far
One thing im trying to for sure figure out is do i need to ground it to the bike???

Put a higher amperage fuse in or you will keep blowing them. It has nothing to do with capacity of the battery which is measured in amp-hours.

There is no grounding required as long as the +ve and -ve wires are seprate from each other.

But battery is 10amps wont that screw it over n short something???



It works (10 amp) untill i sit on the seat but it works if i touch the tire 2 ground


My skype is. Writegraphics (destiny destroyer) if anyone wants to try n help troubleshoot and see the issue in action

You are confusing capacity (measured in Amp-hours) with current (measured in Amps). If it were me, I would get a few 20 amp fuses and while I'm there buy a 25 and even 30 amp one. If you get things working and are going up a steep hill, you may find the additional current draw blows even a 20 or 25 amp fuse.

As mentioned above already:
When the wheel is in the air, there is little load and little current drawn. When it is actually on the ground and facing resistance, the current draw goes up (and even more when going uphill).

Forget this "grounding" business. If your connectors from the battery to the controller use that 3 prong IEC plug, the 3rd prong is connected to nothing. They just use that plug style (which is usually used in AC setups) because they are cheap and easy to obtain.

Ok but if i use the 20amp or higher in battery nothing should get damaged your saying even though the battery itself is a 10ah

If you look at the specs for the battery you bought it says:
[TABLE="width: 100%"]
[TR]
[TD="class: attrLabels"]Maximum continuous discharge current:[/TD]
[TD="width: 50.0%"]20A[/TD]
[/TR]
[/TABLE]
...so if that is correct, a 20 amp fuse should be fine.

If these blow as well and you need more than 20 amps and have to go to a larger fuse, you would be exceeding the battery specs and possibly could cause an issue with either the cells or the BMS. However, if that turns out to be the case, you don't have much choice other than to get a different battery or get a lower power motor/controller.

Having said all this, I don't guarantee anything! but that is the course of action I would be taking if it were my problem.

It's great to have a powerful motor as long as you have the juice to drive it.

Well i bought 20amps but wont b here till tuesday

You mean a brand new 20 amp-hour battery?? (You don't buy batteries with capacity measured in amps.)

If it were me, I would have worked harder on getting this one to work, by trying different fuse sizes - which cost about 25 cents each, if that.

I ment new 20amp fuses

And if you still blow the 20 amp fuses, you may have to go to 25 or even 30 amps.

I havent tried 20 amp yet i said there here tuesday. Im wondering if the wires are not all right or so.ething like a short or something


The batterygage is odd cause all 3 lights are on not just full or whatever



Someone is bringing a 20amp fuse 4 me tonight il test that n see what happens

So the mechanic in my town said hes skeptical about doing 20amp without first checking it out he also said maybe need to go to a 25 amp fuse or so because of it dying with pressure

As I suggested:
Try 20 amps. If it's not enough, try 25 or even 30, but technically anything above 20 amps, according to the published specs for that battery, exceeds the 20 amps continuous max. May shorten battery life or cause it to run warm - or may be just fine.

I cant even tell how big of fuses i need like 20mm x 5mm or 30mm x 6mm what

The same size as the ones you blew.

But i cant find a 20mmX5mm 20amp fuse just a 30mmX6mm 20amp


Where can i buy some

We rigged it so we rigged it with a 20amp inline fuse with a 10amp in the battery only blew once and i got to ride it im happy with it im hoping no more blown fuses for a long while