EZee Kit Micro-Review

[tillson]

Whatever, don't worry, if it's specified as 250 watts by the manufacturer it's legal, and if 15194 certified as all the best makes are, you are doubly covered.

Thanks for that. It just made me wonder when I saw 600 Watts on the Cycle Analyst.

 

[tillson]

250w=sustained controller 36v*7amp rated continuous
perhaps capable of 15amp max 36*15=540watts peak.
Compliance certification does seem a trifle lax but a 250w max cap would make ebikes an unuseable, unsaleable commodity and is in everyone's interest to be realistic not anal.

I think it is more in everyones interest to have an enquiring nature which extends to taking responsibility for what they are engaged in.

Are you capable of division as well as multiplication?

 

[hech]

well that's not very nice is it?

I Always thought the European ebike manf rather arrogant assuming they could compete with small 24v low capacity batteries but it could be they just had to cope with more rigorous compliance testing than they might out east. Think most of them are up to 36v now.

 

[Cyclezee]

Originally the early e-bikes complied with the then 200 watt limit and were largely useless, so manufacturers started to stretch the boundaries, eventually to 1000 watt peaks in the odd instance.

Modern legislation requires e-bikes to conform to a specification so they are tested to meet an EU 15194 technical standard. Mysteriously today's models gain the certification despite having consumptions up to about 700 watts when at full demand, meaning net power outputs up to the 500 to 560 watt region. The EU law clearly states maximum continuous power should only be 250 watts but these motors are clearly capable of continuous outputs well above that.

Since the labs testing state they measure the power at the motor shaft, which is clearly impossible on the majority of all e-bike motors in fully assembled working conditions, they must be fudging in some way, either stripping out the motor only and applying a guesstimate of losses to it's output when reassembled and under working conditions, or just telling porkies. In practice their job is virtually impossible to do to meet the legislative requirements of poorly specified law.

Whatever, don't worry, if it's specified as 250 watts by the manufacturer it's legal, and if 15194 certified as all the best makes are, you are doubly covered.
.

I would just like to confirm that all eZee bikes and conversion kits are verified to comply with EN15194.

 

[amigafan2003]

I think you've just made my mind up on what to fit to my full susp mountain bike.

What are your kits like for durability off road? I'd be putting the battery in a back pack.

Any dimensions for the 48v 10ah battery?

 

[Cyclezee]

I think you've just made my mind up on what to fit to my full susp mountain bike.

What are your kits like for durability off road? I'd be putting the battery in a back pack.

Any dimensions for the 48v 10ah battery?

The eZee kits are quite robust, my son has one and he can break anything (only kidding Ryan).

We also have seatpost mount battery racks for full suspension MTB's as an alternative to carrying in a back pack.

48v batteries are in short supply due to high demand ifor them in North Amereica. We have some in a container that is already loaded and due to leave Shanghai on Sunday, but they are already spoken for.

Please let me know asap if anyone requires a 48v battery.

We can get batteries sent by TNT airfreight as eZee has the certification to do this, but it costs big bucks.

 

[PJM]

Have you got any images of the new kits and dates of availability yet?

 

[Cyclezee]

Hi PJM,

I don't have suitable images to post yet on the website yet. The new kit will not look radically different, apart from the console and wiring, the motor changes are 'under the skin'.

ETA in the UK is 2nd week of August.

 

[eddieo]

Hi John, anything in the pipeline for a different battery set up?

As if you could come up with an attractive in frame battery these kits would fly of the shelves IMO. I would think it would be among the best kits around.....

 

[Cyclezee]

Hi Eddie,

This has been discussed previously, but eZee have not gone down the generic bottle battery route because of the capacity limitations, but they are looking to design their own 'in the triangle' battery.