Yamaha battery seems difficult to source and is a tad expensive....

[TPEHAK]

Once that battery is gone, its probably gone forever. This is the reason I am staying completely away from any bike with a slick in-built proprietary battery. When the battery goes the bike is junk. Probably not even sellable. We already see this happening with ebikes whose manufacturers have gone belly up.

You can build and use custom battery with Yamaha system, or you can purchase an aftermarket battery for Yamaha, or you can rebuild the original Yamaha battery with new cells and new BMS, it was hacked.

Yamaha battery dongle - Google Search

 

[abercrombie]

How do you test capacity on old Yamaha batteries? I have a 7+ year old external one on my 2017 Haibike, which still has excellent range but I'd love to know more precisely what's left.

Maybe Giant's app? Of course that wouldn't work on my Haibike

For Giant, I just do a full charge on the battery and when I turn on the bike it only says 97%. My Specialized Creo is a little different, it still says 100% but when I actually use the bike, I konk out at 98% so I know I lost 2% over the last 4 years.

 

[TPEHAK]

How do you test capacity on old Yamaha batteries? I have a 7+ year old external one on my 2017 Haibike, which still has excellent range but I'd love to know more precisely what's left.

Maybe Giant's app? Of course that wouldn't work on my Haibike

[Tip] Yamaha PW - How to check the number of cycles & absolute battery capacity

I thought I would share this tip because it’s useful when buying a second hand bike. It applies to the frame battery of the PW series drives. By pressing down the button on the battery for a given amount of time, you can obtain information about: The number of cycles: this tells you how many...

forums.electricbikereview.com

 

[m@Robertson]

Talk about a DIY solution... Stuff like this is why I do my own from the ground up.

Yamaha battery hacking dongle to use any 3rd party battery instead of the original Yamaha battery.

Yamaha battery hacking dongle to use any 3rd party battery instead of the original Yamaha battery.

www.elecrow.com

 

[Chargeride]

Im going to buy the Aftermarket 500wh battery from ebay, 206 quid, which is very cheap indeed, in fact throw it in the bin if its a dog..cheap.

I cant get ebay to produce the correct link, theres one for 203 anyway.

E-Bike Akku 36V 11Ah für Yamaha PW-ST PW-TE PW-X PW-X2 PW-SE Schwarz | eBay

<ul> <li>Technologie: Li-Ion - kein Memory-Effekt</li> <li>Kapazität: 11000 mAh</li> <li>Spannung: 36 V</li> <li>Nennenergie: 396 Wh</li> <li>Farbe: schwarz</li> <li>Anzahl der Zellen: 10</li> </ul><b>Passend für folgende Gerätemodelle</b><b>:</b> <br> <ul> <li>Yamaha PW-ST</li>...

www.ebay.co.uk

 

[m@Robertson]

It might be hard to put into the trash bin if its on fire I try to never, ever look for a price deal on batteries and only buy from vendors whose reputation I have already vetted independently.

But if you are stuck in a proprietary platform, I get how thats a tough spot to be in or get out of.