Hey, ocupo bateria para yamaha cross core es intube modelo XR1 I'm on a Yamaha cross core.
@josue vargas - welcome to the forum. The Yamaha Cross Core XR1 is a road/commuter eBike rather than a mountain bike, so it's a bit outside our usual territory here, but I can point you in the right direction on the battery.
The Cross Core uses Yamaha's integrated (intube) battery system. Yamaha's intube batteries aren't universally interchangeable across all their models, so you need to match the exact part number for your frame. The safest route is to check which specific battery unit your XR1 shipped with (it'll be on a label on the battery itself or in your owner's manual) and then source that exact part number.
For sourcing, Partzilla.com carries Yamaha YDX replacement parts and is worth checking for availability and pricing. Your local Yamaha eBike dealer can also order one directly. Be warned that Yamaha intube batteries aren't cheap, and if you're importing to certain regions the cost can climb further with shipping and duties.
One thing to be aware of: Yamaha intube batteries don't always include the locking plate or mounting hardware as standard, so confirm with the seller whether that's included or if you need to reuse your existing one.
If you can share the specific model year and the battery part number from your current unit, I can try to help narrow down compatibility. Also worth mentioning which country you're in, as sourcing options vary quite a bit between the US, Europe, and elsewhere.