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36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Image 1
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Image 2
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Image 4
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Image 5
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Image 6
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Image 7
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Thumbnail Image 1
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Thumbnail Image 2
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Thumbnail Image 4
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Thumbnail Image 5
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Thumbnail Image 6
36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec - Thumbnail Image 7

36V 400Wh 500Wh Downtube Frame‑Mount Lithium‑ion E‑bike Battery for Yamaha PW PW‑X Mid‑Drive System, Compatible with Haibike Winora Batavus Pedelec

Genuine Yamaha 36V downtube‑mount lithium‑ion e‑bike battery, 400Wh /500Wh for Yamaha PW & PW‑X mid‑drive system. Removable frame battery with charge indicator, compatible with Haibike, Winora, Batavus 2014+ pedelecs.

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36V Downtube‑Mount E‑Bike Battery 400Wh / 500Wh

This downtube‑mount 36V 400Wh / 500Wh lithium‑ion battery is designed for e‑bikes equipped with Yamaha PW or PW‑X mid‑drive systems. The 500Wh version launched in 2017 features full backward compatibility, supporting Yamaha e‑bike models produced from 2014 onwards. Built with modern lithium‑ion technology, this frame‑mount battery has no memory effect and supports partial charging at any remaining charge level without damaging battery service life.

Compatibility

✅ E‑bikes & pedelecs with Yamaha 36V PW / PW‑X mid‑drive motor systems

✅ Haibike SDURO full series

✅ Winora Yucatan, Yakun, Radius Tour, Y‑Series

✅ Batavus Pulzar, Senero, Zonar, Razer

✅ Lapierre Overvolt, HT500; BH Bikes Rebel, Emotion Gravel X

✅ Multiple third‑party ebikes adopting Yamaha PW / PW‑X drive units

Compatible model reference:

Haibike SDURO AllMtn RC/RX/PRO, FullNine RC/RX, HardLife RC, HardNine RC/RX/SL, HardSeven RC/RX/SL, Pro Cross RC, Trekking RC, Enduro, FullLife, FullSix;

Winora Yucatan 8, Yakun Plain, Yakun Urban, Radius Tour, Y‑Series;

Batavus Pulzar, Senero, Zonar, Razer; Lapierre Overvolt, HT500; BH Bikes Rebel, BH Emotion Gravel X

Precise Specifications

ParameterValue
Battery Type36V Lithium‑ion Downtube Frame‑Mount Battery
Capacity Option400Wh / 500Wh
OEM Part Number400Wh：PASB2 / B94‑20
500Wh：X0S‑8212A‑20/21 / PASB5 / B0S‑21 (replaces old B0S‑20)
Mounting TypeDowntube frame, removable with integrated carry handle
IndicatorBuilt‑in charge‑level & capacity LED indicator
Charging Time3.5 Hours (400Wh); 4.0 Hours (500Wh)
Unit WeightApprox. 2.9 kg (400Wh); Approx. 3.0 kg (500Wh)
Theoretical Range70‑120 KM (subject to riding conditions)
Recommended ChargerYamaha 36V Charger Model PASC5 / X0S‑00 (Output:42V 4A)
Compatible Drive UnitYamaha PW, PW‑SE, PW‑ST, PW‑TE, PW‑X, PW‑X2, PW‑X3

Package Includes

1 × Genuine Yamaha 36V Downtube‑Mount E‑Bike Battery (Selected 400Wh or 500Wh)

Key Features

✅ No Memory‑Effect Lithium‑ion Technology: Supports random partial charging at any battery level, no need to fully discharge before re‑charging.
✅ Removable Downtube Design: Equipped with integrated carry handle; you can remove battery for indoor charging or charge directly while installed on ebike frame.
✅ Built‑in Charge‑Level Indicator: Quickly check remaining battery capacity at a glance.
✅ Full Backward Compatibility: 500Wh variant works with Yamaha 2014 and later e‑bike models.
✅ Original OEM Quality: Brand‑new genuine Yamaha battery from current official production.
✅ Wide Brand Adaptability: Factory original power source for Haibike, Winora, Batavus, Lapierre, BH Bikes and other Yamaha‑driven pedelecs.

Important Notes

Actual riding range varies greatly, affected by rider weight, assist level, terrain, temperature and riding style. Range data is for reference only.
Please use the official Yamaha PASC5 / X0S‑00 36V ebike charger (42V 4A output). Incompatible third‑party chargers may cause battery damage.
Please verify your e‑bike motor system, mounting position and OEM part number before ordering to prevent incompatibility.
Only the battery is included; charger and other accessories shown in reference pictures are not contained in package.
If you are unsure about compatibility, please contact our customer support for pre‑sales consultation.
Suitable for ebike repair stores, dealers and wholesale distributors. Original replacement battery to restore your Yamaha mid‑drive e‑bike performance.
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We have been sourcing e‑bike components from them for over one year. Product quality is consistent, and their responsive after‑sales support makes our daily shop‑running much easier. Highly recommended.

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faqs

Frequently Asked Questions

We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.

We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.

All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.

Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.

Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.

Sea freight, air freight and rail transport are optional.

Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.

We provide part identification, model matching and full order follow-up support.