The Yamaha EX500 500Wh e-bike frame battery. Specification 36V 13.Ah 500Wh. Type: PASB6. Model: X2S-00. Lion Battery. 10INR19/66-4. Compatible With: Yamaha PW-X2 drive systems.
Best Price: £390.00 from Merlin Cycles
Yamaha EX500 X2S-00 500Wh Frame Battery – Black / 500 Wh Reviews