Nobody can answer those questions without testing anything. You say the battery was half-charhed. How do you know it was 50% and not 10%? The cells are not leaking. I've dealt with hundreds of ebike batteries, and none have leaked stuff out of the case. If cells leak, you get a very pungent sweet smell that you can smell from several feet away.

 

A charger can be bought for £5.

https://www.aliexpress.com/item/1005009611281867.html?spm=a2g0o.productlist.main.7.252b8c20lycoTs&algo_pvid=aacb6cbb-d0b2-455d-be13-bb2aa52dc12a&algo_exp_id=aacb6cbb-d0b2-455d-be13-bb2aa52dc12a-6&pdp_ext_f=%7B%22order%22%3A%2218%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21GBP%215.04%214.38%21%21%216.62%215.75%21%402103846917553454820273506ee3be%2112000049628932886%21sea%21UK%210%21ABX%211%210%21m03_new_user%3A-29895%3Bn_tag%3A-29910%3BpisId%3A5000000174221173&curPageLogUid=LfUiE7kGGn09&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009611281867%7C_p_origin_prod%3A

If you post where you live, maybe someone can lend you a charger.

 

One thing I don't understand: If you bought it with some charge in the battery, the previous owner must have had a charger. Can't you borrow it from them to test your battery.

 

Even if you don't have tools, surely, you know somebody that does have them and can help you measure the voltage, etc.

 

 

When I bought it the indicator on the LCD screen showed half charge. It's now empty but can still use it for lights. The seller sold it without the charger stating it was lost and also after I bought he said he lost the keys. He also said it was fully working which it is not and I told him to come and collect it and give me a refund for which I got a lot of verbal abuse and he blocked me, so no can't borrow the charger form him.

 

There is white powder on the base of the battery bar, I looked up online what it might and the answer is the cells are leaking.

 

I have some tools but not everything I need, some are cheap to buy some not. I don't know anyone that I can ask for a loan or help.

 

Thanks for the link for the charger, that is helpful, is that for a single pin? difficult to tell from description and image.

 

Thanks, you time and information are much appreciated.

No charger and no keys often mean it is Hooky and has been nicked, pointing to stolen goods.

Nobody can answer those questions without testing anything. You say the battery was half-charhed. How do you know it was 50% and not 10%? The cells are not leaking. I've dealt with hundreds of ebike batteries, and none have leaked stuff out of the case. If cells leak, you get a very pungent sweet smell that you can smell from several feet away.

 

A charger can be bought for £5.

https://www.aliexpress.com/item/1005009611281867.html?spm=a2g0o.productlist.main.7.252b8c20lycoTs&algo_pvid=aacb6cbb-d0b2-455d-be13-bb2aa52dc12a&algo_exp_id=aacb6cbb-d0b2-455d-be13-bb2aa52dc12a-6&pdp_ext_f=%7B%22order%22%3A%2218%22%2C%22eval%22%3A%221%22%7D&pdp_npi=6%40dis%21GBP%215.04%214.38%21%21%216.62%215.75%21%402103846917553454820273506ee3be%2112000049628932886%21sea%21UK%210%21ABX%211%210%21m03_new_user%3A-29895%3Bn_tag%3A-29910%3BpisId%3A5000000174221173&curPageLogUid=LfUiE7kGGn09&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009611281867%7C_p_origin_prod%3A

If you post where you live, maybe someone can lend you a charger.

 

One thing I don't understand: If you bought it with some charge in the battery, the previous owner must have had a charger. Can't you borrow it from them to test your battery.

 

Even if you don't have tools, surely, you know somebody that does have them and can help you measure the voltage, etc.

 

 

On the charger page.

The pins are stated as 5.5 x2.1, and another I found is an option of that or 5.5 x 2.5, how do I know which one for my battery? I measured the diameter it it 5mm. Can't find any other info on which size single pin I need.

Found this one with two pin sizes. the battery port measures 5mm but could possibly be 5.5mm , my tape measure is not so fine. Is this a standard size? will 5.5 mm fit the battery port? Thanks.

 

When I bought it the indicator on the LCD screen showed half charge. It's now empty but can still use it for lights. The seller sold it without the charger stating it was lost and also after I bought he said he lost the keys. He also said it was fully working which it is not and I told him to come and collect it and give me a refund for which I got a lot of verbal abuse and he blocked me, so no can't borrow the charger form him.

 

There is white powder on the base of the battery bar, I looked up online what it might and the answer is the cells are leaking.

 

I have some tools but not everything I need, some are cheap to buy some not. I don't know anyone that I can ask for a loan or help.

 

Thanks for the link for the charger, that is helpful, is that for a single pin? difficult to tell from description and image.

 

Thanks, you time and information are much appreciated.

When the indicators show half-charge, the battery is nearly empty, so that's your problem.

 

You shouldn't take any notice of what people on the internet say, when you don't know who they are nor what they know.

 

I agree with the others. Without a charger and keys, it's almost certainly nicked.

 

You still didn't say where you lived!! Is that because you think it's nicked too.

When the indicators show half-charge, the battery is nearly empty, so that's your problem.

 

You shouldn't take any notice of what people on the internet say, when you don't know who they are nor what they know.

 

I agree with the others. Without a charger and keys, it's almost certainly nicked.

 

You still didn't say where you lived!! Is that because you think it's nicked too.

 

The battery is completely empty now> I don't believe everything people tell me online but I do ask questions and research and do my best to verify, which is why I am asking questions here. I searched for why there is powder on the bar and the answer came back from many sources that it is leaking.

Jorvik said the failure on hill may be due to problems with the battery.

 

Apparently its not stolen as when I got it home after buying, in what unfolded as a very dodgy situation, and being told there were no keys either, I reported it to the police who weren't that interested in finding out and I had eo push them a bit and keep calling and ended up having an argument with the woman at the call centre who said she couldn't allow me to talk when I was asking questions and talked over me claimed I was not listening to her being uncooperative and then put the phone down on me. She did the same when I called back to complain, and got her again! So apparently it's not stolen as far as they are concerned and that's as much as I know because they did not call me back as I asked.

 

Many people don't advertise where they live or their names for many reasons of security or choice. Why would you think I was trying to hide something anymore that anyone else on the forum who doesn't give their name and address and information, amongst strangers as you have just posted, I don't know who they are.

 

I just need to know it the charger connector I posted will fit the battery I have. And if I find the battery I have is no good and leaking which makes them dangerous, if I buy a new battery, do they have a controller in the battery bar that will work with the Jorvik? I am not clear as to if the Jorvik with its controller in the bar, means no other battery will work with it or if the others also come with a controller in the bar the is universal or work on the premise that other bikes have the controller elsewhere.

No charger and no keys often mean it is Hooky and has been nicked, pointing to stolen goods.

 

The police said it's not stolen, I did report it to get them to check.

No charger and no keys often mean it is Hooky and has been nicked, pointing to stolen goods.

 

And Idid ask this when I bought it and they said not.

but they also said it was fully charged and working but it isn't, so I reported and verified as best as I could. funny how everyone gets out of their prom about possible theft and likely the police would be nasty shits if it was stolen but they weren't interested in the slightest about looking into it or letting me know what they found.

The charger you showed should be fine, it has both 5.5/2.1 and 5.5/2.5 connectors. The 5.5 is pretty standard, and you can check whether 2.1 or 2.5 is right by trying the 2.1 first: it won't go in if it is wrong as the pin will be too big for the hole.

 

You need to be careful charging, as battery may be bad and history is somewhat unknown. Do it outside and don't leave unattended, don't leave it on overnight. Will take 8 hours or more from flat as the battery I think was said to be 15.6Ah and the charger is 2A.

 

If it charges to full, then you'll be able to see if being flat was the problem. But if long-term stored without being looked after, high chance it is no good.

 

If you break the battery lock it shouldn't break anything else. Ideally you end up with a 'lock' that holds the battery but turns with a screwdriver. Remember a new battery comes with a new mounting plate, and new lock.

 

The controller might be mounted in the battery mount, but the opposite end to the lock. There is a recess there in some battery mounts, large enough for a small controller. I don't know how it will be mounted: I assume removable but I don't know.

If it was stolen , I very doubt if plod would even know.

To buy a used battery from someone who has no key or charger, sounds very very dodgy as you have also intimated at (as a dodgy situation) !!!!

We only ask for a location as it may help in an offer from a forum member to look at your battery, to see if it is recoverable/repairable.

Also this a legit premier UK EAPC forum and not some dodge pot site like fakebook that gives out duff info, if someone does they soon get called out by other members.

Edited August 16, 2025Aug 16 by Nealh

The charger you showed should be fine, it has both 5.5/2.1 and 5.5/2.5 connectors. The 5.5 is pretty standard, and you can check whether 2.1 or 2.5 is right by trying the 2.1 first: it won't go in if it is wrong as the pin will be too big for the hole.

 

You need to be careful charging, as battery may be bad and history is somewhat unknown. Do it outside and don't leave unattended, don't leave it on overnight. Will take 8 hours or more from flat as the battery I think was said to be 15.6Ah and the charger is 2A.

 

If it charges to full, then you'll be able to see if being flat was the problem. But if long-term stored without being looked after, high chance it is no good.

 

If you break the battery lock it shouldn't break anything else. Ideally you end up with a 'lock' that holds the battery but turns with a screwdriver. Remember a new battery comes with a new mounting plate, and new lock.

 

The controller might be mounted in the battery mount, but the opposite end to the lock. There is a recess there in some battery mounts, large enough for a small controller. I don't know how it will be mounted: I assume removable but I don't know.

 

Thanks, that's very helpful.

 

Can you clarify about the controller? Jorvik sayits in the battery mount. compatible sellers, state type of compatible controller as X something. What I don't know is, if the compatibles come with a controller in the bar, that works with your system if it is X something, or if the controllers on other bikes and trikes are placed elsewhere and the compatibles will only work on these models and not the Jorvik with the bar mounted controller?

Thanks, that's very helpful.

 

Can you clarify about the controller? Jorvik sayits in the battery mount. compatible sellers, state type of compatible controller as X something. What I don't know is, if the compatibles come with a controller in the bar, that works with your system if it is X something, or if the controllers on other bikes and trikes are placed elsewhere and the compatibles will only work on these models and not the Jorvik with the bar mounted controller?

All I can say is that the bottom part of some battery mounts has a cavity which is large enough for the smaller controllers.

 

Putting the controller there is neat and tidy. But I don't have specific Jorvik knowledge.

 

When you say 'bar mounted', I think you might be confusing two different things. The 'controller' is usually an aluminium case with lots of cables going in and out.

 

The thing on the handlebars with switches and indicators of power and battery state and speed is NOT the controller: it is generally called the 'display', or LCD or LED for some types.

 

If you post pictures of anything you need clarifying it will be easy to do.

We only ask for a location as it may help in an offer from a forum member to look at your battery, to see if it is recoverable/repairable.

Also this a legit premier UK EAPC forum and not some dodge pot site like fakebook that gives out duff info, if someone does they soon get called out by other members.

 

No one has asked for a location, but I have been accused of being untrustworthy because I haven't told everybody and his dog where I live.

 

I don't know who anyone is on this site and any issues with giving location are not about trusted advice. People are discussing all sorts of details on here that could put them at risk in many ways.

 

I didn't buy a used battery, I bought a used Trike advertised as charger lost, when I set off I didn't know the situation was going to be dodgy that unfolded as it went. . have no car, I went by bus, I was told he wold give me his address, when I got to the station, then when he left work, he then said he was working late and told me to wait at the coop, I waited at least 3/4 in the blazing sun. he brought the trike there , wouldn't not give me an address, said he didn't want anyone hanging around outside of his house. I bought the trike and asked if it was stolen before I gave him the money and he said no. I asked for the keys and was told they were lost also. I was also told it was fully charged and working as it should, which also were not true. The police checked the reports and serial number and that's as much as I know, I also called Jorvik to track the serial number to a buyer but they originally said they could then they said they cant , then maybe and they will get back to me but still haven yet. They also said if I prove it's not stolen they can supply replacement keys but when I asked about this they siad it would take months as they would have to be made. I have done all I can to verify it is not stolen and as much as I can do because the seller refused to collect it and give me a refund, and then blocked me and I can force him to speak to me can I.

 

So now I have a trike the barely works, no money to fix it other than what I spend on credit card, I have done my due diligence in trying to remedy the situation and check that it is not stolen but somehow I am being accused of wrongdoing, by a stranger on a forum who knows nothing about me, and who feels he needs to know where I live in order to deem if I am handling stolen goods or not, which I am not. And if the police did find it was stolen they would no doubt come and take it from me, because they do know where I live, even though they weren't all that interested in helping me. Maybe I could sue the police in that circumstance?

All I can say is that the bottom part of some battery mounts has a cavity which is large enough for the smaller controllers.

 

Putting the controller there is neat and tidy. But I don't have specific Jorvik knowledge.

 

When you say 'bar mounted', I think you might be confusing two different things. The 'controller' is usually an aluminium case with lots of cables going in and out.

 

The thing on the handlebars with switches and indicators of power and battery state and speed is NOT the controller: it is generally called the 'display', or LCD or LED for some types.

 

If you post pictures of anything you need clarifying it will be easy to do.

 

Sorry, I mean the battery bar. the mount for the battery is, where Jorvik state the controller is. If I buy a compatible will the battery mount also have a controller that if I match the system will work with my trike?

 

So what I am unsure of is, if I buy a compatible and replace the battery mount, even though I match the system, will I then have no controller?

Controller as has been said is the brains of the bike , it contains the pre programmed PCB . The motor, battery and all other peripheral items are wired to it.

The display is on the handle bars one selects the assist level to use , some internet numpties call it the controller as they simply don't understand the terminology used.

Some batteries do have the controller mounted at the base of the battery holder and some use a separate controller which is an aluminium box approx. 8.5cm x 6.5cm, to know which you have look to see where all the bikes wiring goes to.

 

If all the wiring emanates form the base of the battery holder , then you will have the integrated battery holder with controller .

A new battery is just that , it doesn't come with a new supplied controller.

 

One buys a compatible controller separately.

Controller as has been said is the brains of the bike , it contains the pre programmed PCB . The motor, battery and all other peripheral items are wired to it.

The display is on the handle bars one selects the assist level to use , some internet numpties call it the controller as they simply don't understand the terminology used.

Some batteries do have the controller mounted at the base of the battery holder and some use a separate controller which is an aluminium box approx. 8.5cm x 6.5cm, to know which you have look to see where all the bikes wiring goes to.

 

If all the wiring emanates form the base of the battery holder , then you will have the integrated battery holder with controller .

 

Jorvik state the controller is the battery mount, but what I need to know is can I replace this mount with a compatible. will the compatible have a controller that works with my Jorvik trike?

We don't want to know where you live just a location, suffice to say a town /city location or county so someone nearby may be ale to offer help.

A new battery is just that , it doesn't come with anew supplied controller.

 

But they come with a replacement mount, so does that mount have a compatible controller or do I need to train the Jorvik one and somehow find a battery that will fit on the Jorvik bar?

We don't want to know where you live just a location, suffice to say a town /city location or county so someone nearby may be ale to offer help.

 

Im in north Dorset.

But they come with a replacement mount, so does that mount have a compatible controller or do I need to train the Jorvik one and somehow find a battery that will fit on the Jorvik bar?

 

No , not unless the listing specifies it.

 

The controller doesn't need any thing done to it , it is preprogrammed and just needs battery voltage to make it work.

No , not unless the listing specifies it.

 

so I need to keep the Jorik battery mount and try to find a battery that fits it?

so I need to keep the Jorik battery mount and try to find a battery that fits it?

 

Yes , battery mounts aren't universal so one has to buy the specific cased battery.

From what we have seen it is a Tiger shark battery.

 

To help determine the controller maker we need to see a pic of the handle bar display, if we can determine which brand it is one may be able to use a 48v battery instead of a 36v battery as the controller may be a dual voltage model.

 

Also can we see a pic of the bottom of the battery holder then we may be able to see which connector you may need , we would need a pic with the wiring and also any connectors fitted ( there are likely to be three or connectors of varying sizes.

Im in north Dorset.

 

Alas I am too far away so can't physically help out.