Ezee battery replacement UK

[Bob Smith]

Hi,

We've got two Ezee bikes plus a tandem with an Ezee kit on it. They each have their own battery with the oldest one about 6 years old. They're all the slide in type. I'm wondering what to do when they start to fail as I don't think there is a UK Ezee dealer at the moment. Or can anyone recommend a shop that will rebuild a battery with new cells? I'm near Reading.

Bob.

 

[flecc]

You can get them direct from Ezee Bob. The information from Cyclezee is on this link
.

 

[Bob Smith]

Thanks flecc. Do you know who Jimmy is that Cyclezee recommends for cell replacement?

 

[flecc]

Thanks flecc. Do you know who Jimmy is that Cyclezee recommends for cell replacement?

Yes it's this company, the best for recelling:

Insat International (BGA): The UK's leading eBike Battery Specialists
http://www.bga-reworking.co.uk/
1A Gateway Mews, Ringway, London N11 2UT
Tel: +44 (0)208 361 1790
Email: info@bga-reworking.co.uk
https://twitter.com/bgainsat
.

 

[Bob Smith]

Thanks.

 

[falmouthtony]

I'd be really interested Bob to see how you get on with re-celling with Jimmy...if you go down that route.
Thanks..Tony

 

[Benjahmin]

Me too, my Ezee battery is getting long in the tooth.

 

[Cyclezee]

A bit of eZee gossip, later this year the factory will be relocating from Shanghai to a new site on the outskirts of Kuala Lumpur, Malaysia.

It is looking very likely that there will be a new UK eZee importer who will specialise in the Expedir cargo/utility bike.

Wai Won Ching will be competing in the 13,000 Km solar powered Sun Trip from Lyon, France to Guangzhou, China. He will be riding an eZee Longabike semi recumbent trike. His target is to achieve 250 Km per day.

 

[falmouthtony]

A bit of eZee gossip, later this year the factory will be relocating from Shanghai to a new site on the outskirts of Kuala Lumpur, Malaysia.

It is looking very likely that there will be a new UK eZee importer who will specialise in the Expedir cargo/utility bike.

Wai Won Ching will be competing in the 13,000 Km solar powered Sun Trip from Lyon, France to Guangzhou, China. He will be riding an eZee Longabike semi recumbent trike. His target is to achieve 250 Km per day.

Keep us in the loop re new UK guy please.
Cheers.

 

[Cyclezee]

Keep us in the loop re new UK guy please.
Cheers.

Uh...I didn't say the eZee Expedir importer was going to be a guy

If anyone eZee owners are in need of a replacement battery right now either ordering a new one direct from eZee or a total rebuild by Jimmy are the best solutions. BTW as many will already be aware you can ask Jimmy for more capacity, up 20Ah for the standard size VP or FP cases. The voltage can also be increased from 36v to 48v, eZee motors and controllers can handle that without a problem, however the old style pre 2012 battery gauges and front lights don't work at 48v. Post 2012 LED battery gauges will work by simply changing the voltage setting.

 

[Benjahmin]

The voltage can also be increased from 36v to 48v, eZee motors and controllers can handle that without a problem, however the old style pre 2012 battery gauges and front lights don't work at 48v. Post 2012 LED battery gauges will work by simply changing the voltage setting.

That's interesting to know. My kit, bought in 2014, is still battling on, though the battery suffers sag on the hills around here, I'm currently using it with a 2nd battery in my pannier. But when the time comes.......
How do you change the voltage setting? Presumably this also alters the lvc?

From my experience at 36v, an Ezee at 48v should be able to climb Alp Duez like a mountain goat.

 

[Cyclezee]

That's interesting to know. My kit, bought in 2014, is still battling on, though the battery suffers sag on the hills around here, I'm currently using it with a 2nd battery in my pannier. But when the time comes.......
How do you change the voltage setting? Presumably this also alters the lvc?

From my experience at 36v, an Ezee at 48v should be able to climb Alp Duez like a mountain goat.

Hi Ben, to change the from 36 to 48 v you need to enter the advanced menu as shown below:

Advanced Menu
Hold the ‘Up▲’ and ‘Down▼’ button together during power up to enter setup menu.
Use Up▲ or Down▼ button to select the appropriate settings.
In menu setup, hold the ‘Down▼’ button for about 3 seconds to save and switch to the next menu

Menu 1: Voltage Selection
1 – 36V (Default)
2 – 48V

Menu 2: Shunt Resistance
The battery gauge is calibrated to the controller’s current sensing shunt by programming the shunt resistance value. This will be preset in the factory to match the controller on the bike or kit.

Shunt Value (mOhms)
1 – 0.89 – 1.13
2 – 1.14 – 1.38
3 – 1.39 – 1.63 (Default)
4 – 1.64 – 1.88
5 – 1.89 – 2.13

Menu 3: Current Limit
Set the upper current limit. The battery gauge will scale down the amperage drawn when it senses that it exceeds the current limit.
Current Limit Value (Amps)
1 - 4.0
2 - 8.0
3 - 12.0
4 - 16.0
5 - Disabled (Default)

 

[Benjahmin]

So it seems that there is no current limit set as a default, not sure what that means. If the system runs well, and it does, with no current limit, why would the manufacturer put the option in?
I'm struggling to understand this - just out of curiosity. So on a heavy climb, I assume that's when max current draw would occur, the current is limited only by the resistance it's being applied through, is that right?
How about assistance level settings, are they current limiting or speed?

Sorry to fire all this at you in your retirement, thought you might be fed up with gardening/fishing by now

 

[Nealh]

Probably like the rest of us waiting for an up turn in the weather so we all can get out a bit more.
A part from the mini heatwave we had finding a decent dry mild spell to inspect my bees hasn't been very obliging, I tried on Thursday. Arrived at the railway mission control centre, half way through my inspection a squall appeared out of know where and blew a hooley and pelted down quickly closed up. It passed and sun came out so went out again to do number two by the time I was ready, black clouds reappeared .

 

[Cyclezee]

Thanks.
So it seems that there is no current limit set as a default, not sure what that means. If the system runs well, and it does, with no current limit, why would the manufacturer put the option in?
I'm struggling to understand this - just out of curiosity. So on a heavy climb, I assume that's when max current draw would occur, the current is limited only by the resistance it's being applied through, is that right?
How about assistance level settings, are they current limiting or speed?

Sorry to fire all this at you in your retirement, thought you might be fed up with gardening/fishing by now

Hi Ben, I don't recommend changing any of the default settings other than Menu 1 and then only if you switch to a 48v battery.
Changing up assistance levels increases power to the motor and decreasing assistance levels does the opposite.

As for my retirement, that was only from the Electric Bike business which followed on from my retirement 5 years ago from the NHS.
I have no interest in fishing or gardening, my main occupation now is working as a volunteer for the Red Cross plus occasional voluntary work for the National Trust.

If anyone has time to spare even just a few hours a week and wants to make a difference the Red Cross please click on the following link https://www.redcross.org.uk/get-involved/volunteer

 

[JohnDeere8530]

Hi Ben, to change the from 36 to 48 v you need to enter the advanced menu as shown below:

Advanced Menu
Hold the ‘Up▲’ and ‘Down▼’ button together during power up to enter setup menu.
Use Up▲ or Down▼ button to select the appropriate settings.
In menu setup, hold the ‘Down▼’ button for about 3 seconds to save and switch to the next menu

Menu 1: Voltage Selection
1 – 36V (Default)
2 – 48V

Menu 2: Shunt Resistance
The battery gauge is calibrated to the controller’s current sensing shunt by programming the shunt resistance value. This will be preset in the factory to match the controller on the bike or kit.

Shunt Value (mOhms)
1 – 0.89 – 1.13
2 – 1.14 – 1.38
3 – 1.39 – 1.63 (Default)
4 – 1.64 – 1.88
5 – 1.89 – 2.13

Menu 3: Current Limit
Set the upper current limit. The battery gauge will scale down the amperage drawn when it senses that it exceeds the current limit.
Current Limit Value (Amps)
1 - 4.0
2 - 8.0
3 - 12.0
4 - 16.0
5 - Disabled (Default)

Sorry to resurrect an old thread...

I have a mobility bike made by Batec that uses an Ezze controller and motor as shown in the manufacturer's spec below...

BATEC ELECTRIC

The BATEC ELECTRIC handbike offers you a 2 in 1 approach to your needs: a unique solution that will revolutionise your mobility outdoors, without having to renounce to the advantages of your manual wheelchair. It is the definitive mobility tool. ...

batec-mobility.com

It is the standard version that travels at around 12.5mph on a 20" wheel with a 36v battery.



However I am aware that they made a special high speed limited (more torque too?) version that ran from a 48v battery.

https://batec-mobility.com/en/products/handbikes/batec-rapid

Not that the manufacturer admits it(as they charge £1.5k extra), I am under the impression the only changes is the battery and made a few settings on the controller.



My question is if I bought a new 48v battery and I changed the setting as above would it work as the uprated limited version ?

 

[flecc]

Sorry to resurrect an old thread...

I have a mobility bike made by Batec that uses an Ezze controller and motor as shown in the manufacturer's spec below...

BATEC ELECTRIC

The BATEC ELECTRIC handbike offers you a 2 in 1 approach to your needs: a unique solution that will revolutionise your mobility outdoors, without having to renounce to the advantages of your manual wheelchair. It is the definitive mobility tool. ...

batec-mobility.com

It is the standard version that travels at around 12.5mph on a 20" wheel with a 36v battery.



However I am aware that they made a special high speed limited (more torque too?) version that ran from a 48v battery.

https://batec-mobility.com/en/products/handbikes/batec-rapid

Not that the manufacturer admits it(as they charge £1.5k extra), I am under the impression the only changes is the battery and made a few settings on the controller.



My question is if I bought a new 48v battery and I changed the setting as above would it work as the uprated limited version ?

If it is the standard Ezee controller, and it seems it is from that 12.5 mph in a 20" wheel, yes it will work.

Only change the Menu 1 setting though, as Cyclezee advises above. On 48 volts that will give you up to 16.5 mph, but no increase in torque.

Changes to menus 2 and 3 settings would increase torque but could mean reliability problems, especially with the higher wheelchair load.
.

 

[JohnDeere8530]

If it is the standard Ezee controller, and it seems it is from that 12.5 mph in a 20" wheel, yes it will work.

Only change the Menu 1 setting though, as Cyclezee advises above. On 48 volts that will give you up to 16.5 mph, but no increase in torque.

Changes to menus 2 and 3 settings would increase torque but could mean reliability problems, especially with the higher wheelchair load.
.

thankyou for the reply, so changing menu 1 to 48v will increase speed, but with no loss of torque? Is it possible to "read" what my settings are for menus 2 & 3 ? At present torque, to me at least seems very low. I wouldn't mind more! However this is not essential . The instructions say a 900w motor, if that helps? And I have attached pictures

On another note I have I think an Identical set up on another wheelchair with 48v battery. Speed seems similar but it definitely has far more torque... Any pointers to/ for my first question?

Also this one has cruise control where speed is constant if you push one arrow key from memory. However the Batac one (shown) that I want to to change to 48v does not do this. All it does is adjusts max speed. Is there a way of reconfiguring these buttons in the same manner, where max speed is not adjusted but they just set cruise control ?

Thanks once again.

@Cyclezee ... are you able to shed any light ?

 

[flecc]

thankyou for the reply, so changing menu 1 to 48v will increase speed, but with no loss of torque? Is it possible to "read" what my settings are for menus 2 & 3 ? At present torque, to me at least seems very low. I wouldn't mind more! However this is not essential . The instructions say a 900w motor, if that helps? And I have attached pictures

Also this one has cruise control where speed is constant if you push one arrow key from memory. However the Batac one (shown) that I want to to change to 48v does not do this. All it does is adjusts max speed. Is there a way of reconfiguring these buttons in the same manner, where max speed is not adjusted but they just set cruise control ?

@Cyclezee ... are you able to shed any light ?

These I honestly don't know, I only have some limited experience with the standard Ezee controller.

Cyclezee doesn't come into the forum much now he's retired from the business, so if he doesn't respond you could try his email which he kept valid for a long time so it might still be:

cyclezee@gmail.com
.