Shimano STEPS BT-EN805-L 504Wh Integrated Down Tube E-Bike Battery
IBTEN805LA
SKU code: SHM-IBTEN805LA
In Stock
The Shimano STEPS BT-EN805-L is a 504Wh second-generation integrated down tube battery engineered for e-MTB systems running the EP801 or EP600 drive unit. Its slim, frame-integrated housing keeps weight low and centred — maintaining the handling characteristics of a conventional mountain bike while delivering a full day of trail riding from a single charge.
Highlights
- 504Wh (36V, 14Ah) lithium-ion capacity for extended trail range
- Integrated down tube / seat tube design for a clean, stealth frame aesthetic
- Compatible with DU-EP801 and DU-EP600 STEPS drive units
- IPX5 water resistance — handles rain and low-pressure washing
- Full charge in approximately 5 hours with the EC-8004 charger
- Retains over 60% of initial capacity after 1,000 full charge cycles
- Low centre of gravity for natural, balanced ride feel
Performance & Longevity
With 504Wh of usable capacity, the BT-EN805-L delivers meaningful range across a wide variety of terrain and assist modes. Shimano's battery management system optimises cell health over the long term — the battery is rated to retain more than 60% of its initial maximum capacity after 1,000 full charge cycles. Charging via the EC-E8004 or EC-E6002 charger (SM-BTE80 or EW-CP100 charging adapter required) takes approximately 5 hours from flat.
Trail-Ready Durability
Built specifically for e-MTB use, the BT-EN805-L carries an IPX5 water-resistance rating, making it well suited to riding in wet conditions and routine post-ride washing. The operating temperature range of -10°C to 50°C covers typical Australian trail conditions year-round, while the charging range of 0°C to 40°C is appropriate for most workshop and garage environments.
Compatibility & Fit
The BT-EN805-L is designed for second-generation Shimano STEPS integrated down tube battery mounts and is compatible with the following components:
- Drive units: DU-EP801, DU-EP600
- Battery mounts: BM-EN800-A, BM-EN800-B, BM-EN801-A, BM-EN801-B
- Chargers: EC-E8004, EC-E6002
- Charging adapters: SM-BTE80, EW-CP100
This battery is not compatible with first-generation STEPS systems (E8000, E7000 series). Consult your frame manufacturer to confirm BT-EN805-L fitment before ordering.
Shimano warrants this product to the original retail purchaser against defects in materials and workmanship for 2 years from the date of original retail purchase. This warranty does not cover damage from misuse, improper installation, wear, or unauthorised modification. For warranty support, return the item to Tune Cycles.
- 504Wh capacity (36V, 14Ah) lithium-ion cell
- Integrated downtube / seattube frame-mount design
- Compatible with Shimano STEPS DU-EP801 and DU-EP600 drive units
- IPX5 water resistance rating
- Approx. 5-hour full charge time (with EC-E8004 charger)
- Retains >60% capacity after 1,000 full charge cycles
- Operating temperature: -10°C to 50°C
- Charging temperature: 0°C to 40°C
- Low centre of gravity for balanced handling
- Colour: Black
| Specification | Detail |
|---|---|
| Capacity | 504Wh |
| Voltage | 36V |
| Current | 14Ah |
| Cell type | Lithium-ion |
| Colour | Black |
| Weight | Approx. 3,150g |
| Water resistance | IPX5 |
| Charge time | Approx. 5 hours (EC-E8004) |
| Operating temperature | -10°C to 50°C |
| Charging temperature | 0°C to 40°C |
| Cycle life (capacity) | >60% retained after 1,000 cycles |
| Compatible drive units | DU-EP801, DU-EP600 |
| Compatible mounts | BM-EN800-A, BM-EN800-B, BM-EN801-A, BM-EN801-B |
| Compatible chargers | EC-E8004, EC-E6002 |
| Charging adapters | SM-BTE80, EW-CP100 |
| Mount type | Integrated downtube / seattube (2nd generation) |
| SKU | SHM-IBTEN805LA |
| Barcode # | 4550170234577 |
| Brand | Shimano |
