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Trek Rail 9.9 XX1 AXS (2021) battery
The Trek Rail 9.9 XX1 AXS runs on a 36V 20.1Ah (750 Wh) battery rated for up to 120 miles.
36 Vnominal voltage
750 Whbattery capacity
120 mimax range
8replacement packs listed
Battery specifications
- Nominal voltage
- 36 V
- Capacity
- 20.1 Ah
- Energy
- 750 Wh
- Battery brand / cells
- Bosch PowerTube 750
- Chemistry and layout
- Lithium-ion
- Battery weight
- 9.7 lb
- Charge time
- 6 hours
- Estimated range
- 40–120 miles
- Motor
- Bosch Performance Line CX (The Smart System), Mid-Mounted Geared Motor, 250W nominal
- Torque
- 85 Nm
- Class
- Pedal Assist (Class 1)
- Launch price
- $13,550
Efficiency at max range: about 6.3 Wh per mile.
Packs with matching voltage and capacity
Packs at 36V with at least 675 Wh
| Pack | Seller | Type | Voltage | Capacity | Price |
|---|---|---|---|---|---|
| EBike Battery D034 36V 48V 60V 72V 20Ah 25Ah 40Ah PVC Lithium Battery Pack For 3 Cheapest | Unit Pack Power | Aftermarket | 36 V | 720 Wh | $235 |
| Polly DP-5 Jumbo Shark R049-8 36V 52V 20Ah 21700 Cells Electric Bike Battery Pac | Unit Pack Power | Aftermarket | 36 V | 720 Wh | $242 |
| R049-2 36V 52V 24.5Ah BMS30A Samsung 3500mAh Cells Li-ion EBike Battery For 250W Best $/Wh | Unit Pack Power | Aftermarket | 36 V | 882 Wh | $249 |
| Hailong EBike Battery S039-5 36V 48V 20AH BMS50A 21700 LG5000 Cells 4 PIN Lithiu | Unit Pack Power | Aftermarket | 36 V | 720 Wh | $250 |
| Rack Ebike Battery R007-1 36V 21Ah BMS20A 18650 LG3500mAh Cells For 250W 350W 5 | Unit Pack Power | Aftermarket | 36 V | 756 Wh | $260 |
| Rear Rack Ebike Battery U010-1 36V 48V 52V 30AH 35AH 21700 Cells li-on Battery P | Unit Pack Power | Aftermarket | 36 V | 1,080 Wh | $349 |
| EM3ev King Shark 1004 – 36V 20Ah eBike Battery | EM3ev | Aftermarket | 36 V | 720 Wh | – |
| Bosch PowerTube 720 | Bosch | OEM | 36 V | 720 Wh | – |
Other Trek batteries
More Trek models
| Model | Year | Battery | Capacity |
|---|---|---|---|
| Domane+ SLR 9 eTap | 2023 | 36V 10Ah | 360 Wh |
| FX+ 2 Stagger | 2023 | 36V 7Ah | 250 Wh |
| E-Caliber 9.9 XTR | 2021 | 36V 7Ah | 252 Wh |
| Powerfly FS 9 Equipped | 2021 | 36V 17.4Ah | 626 Wh |
| Verve+ 3 | 2021 | 36V 13.4Ah | 482 Wh |
| Allant+ 7 | 2020 | 36V 13.4Ah | 482 Wh |
| Verve+ 2 | 2020 | 36V 11Ah | 396 Wh |
| Dual Sport+ | 2019 | 36V 13.4Ah | 482 Wh |
Frequently asked questions
What battery does the Trek Rail 9.9 XX1 AXS use?
The Trek Rail 9.9 XX1 AXS (2021) uses a 36V 20.1Ah, 750 Wh battery from Bosch PowerTube 750 (Lithium-ion).
How far can the Trek Rail 9.9 XX1 AXS go on one charge?
Estimated range is 40 to 120 miles depending on assist level, rider weight, terrain and temperature.
Can I use a bigger battery on the Trek Rail 9.9 XX1 AXS?
A higher amp-hour pack at the same 36V voltage adds range, as long as it fits the mount and connector. Do not use a higher-voltage pack unless the controller is rated for it.