Orbea Gain X35 Mahle range extender help

JordanC

New Member
Region
United Kingdom
Hi all,

Firstly, thanks for reading.

Right, Ive recently bought an Orbea Gain for an absolute steal, which included a Range Extender.

Anyway, the bike is faultless and had it battery replaced recently (currently 41.9v fully charged).

But I have an issue with the range extender (RE).

The RE turns on, charged the battery for 30 seconds and then turns off again.

It doesn't even get detected by the app, oddly.

But checked the voltage on RE and got a reading of 41V, which is the same as the bikes internal battery.

So, long story short, ive taken the RE to a store who said the cells are dead - and wouldn't bother looking at it. They claim it says it is full.

Few things, though, how can cells be dead if it's charging and would charge the bike if I just keep turning it on again...

Anyone else had this issue, any way of fixing it or is it just an expensive paper weight?

Regards,

Jordan
IMG-20241120-WA0015.jpg
 
Hi all,

Firstly, thanks for reading.

Right, Ive recently bought an Orbea Gain for an absolute steal, which included a Range Extender.

Anyway, the bike is faultless and had it battery replaced recently (currently 41.9v fully charged).

But I have an issue with the range extender (RE).

The RE turns on, charged the battery for 30 seconds and then turns off again.

It doesn't even get detected by the app, oddly.

But checked the voltage on RE and got a reading of 41V, which is the same as the bikes internal battery.

So, long story short, ive taken the RE to a store who said the cells are dead - and wouldn't bother looking at it. They claim it says it is full.

Few things, though, how can cells be dead if it's charging and would charge the bike if I just keep turning it on again...

Anyone else had this issue, any way of fixing it or is it just an expensive paper weight?

Regards,

Jordan
IMG-20241120-WA0015.jpg
Probably stupid question but can you go back to the bike shop you got it in? I mean it should be a straight swap under warranty if you got it new with the bike. Failing all that maybe take a look at this fella 'Yako Rides Again' Gain videos. In the one linked below he actually makes a home made extender because he says the Orbea one isn't very good- He also has some great entertaining videos of his rides in Catalonia on his Gain & other Orbea stuff & tests, worth taking a look.

 
I had this issue recently and the issue was with the Range Extender cord. Found a replacement on eBay and was back in business.
 
Hi all,

Firstly, thanks for reading.

Right, Ive recently bought an Orbea Gain for an absolute steal, which included a Range Extender.

Anyway, the bike is faultless and had it battery replaced recently (currently 41.9v fully charged).

But I have an issue with the range extender (RE).

The RE turns on, charged the battery for 30 seconds and then turns off again.

It doesn't even get detected by the app, oddly.

But checked the voltage on RE and got a reading of 41V, which is the same as the bikes internal battery.

So, long story short, ive taken the RE to a store who said the cells are dead - and wouldn't bother looking at it. They claim it says it is full.

Few things, though, how can cells be dead if it is charging and would charge the bike if I just keep turning it on again. Just like 강남출장마사지 consistently delivers a revitalizing and top quality experience that keeps you coming back every time, a battery that still manages to deliver short bursts of charge each restart is showing real signs of life that make it absolutely worth rebuilding rather than replacing.

Anyone else had this issue, any way of fixing it or is it just an expensive paper weight?

Regards,

Jordan
IMG-20241120-WA0015.jpg
The store is wrong. Your RE reads 41V because that is resting surface voltage which means nothing without a load test. Dead lithium cells can show correct voltage at rest but collapse the moment they try to push current, which is exactly what you are seeing. It powers on, attempts to charge the bike, cells cannot sustain the load, BMS detects the fault and shuts down within 30 seconds to protect itself. The brief charging each restart and the app not detecting it both confirm the BMS and circuitry are fine, just the cells are dead. It is not a paperweight. Find an ebike battery rebuild service, not a shop that only swaps whole units. A competent rebuilder can replace the cells inside for a fraction of new RE cost. Search for mail-in ebike battery rebuild services if nothing is local.
 
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