- Home
- E-bike batteries
E-bike batteries
Battery specs for 1,415 e-bike models from 260 brands. Find your bike, see its original pack, and compare compatible replacements.
1,415e-bike models
260brands
482 Whmedian battery size
96replacement packs tracked
Battery size by voltage
E-bike battery voltage breakdownModels with 5 or more reviews at that voltage. Range is the median of manufacturer and tester maximum estimates.
How e-bike batteries have grown
Median e-bike battery by model year
| Model year | Models reviewed | Median capacity | Median voltage |
|---|---|---|---|
| 2014 | 130 | 396 Wh | 36 V |
| 2015 | 152 | 418 Wh | 36 V |
| 2016 | 138 | 418 Wh | 36 V |
| 2017 | 161 | 480 Wh | 36 V |
| 2018 | 154 | 482 Wh | 36 V |
| 2019 | 202 | 500 Wh | 48 V |
| 2020 | 92 | 557 Wh | 48 V |
| 2021 | 48 | 601 Wh | 36 V |
| 2022 | 54 | 529 Wh | 36 V |
| 2023 | 42 | 626 Wh | 36 V |
| 2024 | 39 | 630 Wh | 48 V |
| 2025 | 58 | 636 Wh | 48 V |
| 2026 | 41 | 720 Wh | 48 V |
All brands
E-bike brands by number of models
| Brand | Models | Voltages | Median capacity | Years |
|---|---|---|---|---|
| BULLS | 67 | 36V, 37V, 37.5V, 48.1V | 626 Wh | 2016–2023 |
| Easy Motion | 49 | 35V, 36V, 48V | 418 Wh | 2013–2018 |
| Rad Power Bikes | 46 | 48V | 672 Wh | 2015–2025 |
| IZIP | 43 | 24V, 36V, 48V | 418 Wh | 2009–2019 |
| Haibike | 37 | 36V, 48V | 396 Wh | 2014–2019 |
| Pedego | 35 | 36V, 48V | 480 Wh | 2013–2026 |
| Specialized | 32 | 36V, 36.3V, 36.9V, 48V | 504 Wh | 2013–2024 |
| Raleigh | 28 | 36V, 48V | 418 Wh | 2014–2019 |
| Trek | 26 | 36V, 37V | 418 Wh | 2010–2025 |
| EVELO | 25 | 36V, 48V | 500 Wh | 2013–2025 |
| Riese & Müller | 25 | 36V | 482 Wh | 2017–2022 |
| Magnum | 24 | 36V, 48V | 624 Wh | 2015–2026 |
| Surface 604 | 24 | 36V, 48V | 499 Wh | 2014–2023 |
| Aventon | 22 | 36V, 48V, 48.8V | 708 Wh | 2019–2026 |
| Blix | 21 | 36V, 48V | 614 Wh | 2015–2024 |
| CUBE | 19 | 36V | 482 Wh | 2015–2022 |
| Gazelle | 19 | 36V | 482 Wh | 2016–2022 |
| OHM | 19 | 36V, 36.3V, 48V | 508 Wh | 2013–2023 |
| EG | 18 | 24V, 36V, 48V | 480 Wh | 2008–2019 |
| Ride1Up | 16 | 36V, 48V, 52V | 672 Wh | 2019–2026 |
| Velotric | 16 | 36V, 48V | 706 Wh | 2024–2026 |
| Electric Bike Company | 15 | 48V | 557 Wh | 2017–2024 |
| Electric Bike Outfitters | 15 | 36V, 48V | 528 Wh | 2015–2019 |
| Kalkhoff | 15 | 25.5V, 36V, 37V | 504 Wh | 2014–2017 |
| Lectric eBikes | 15 | 48V | 499 Wh | 2019–2026 |
| VoltBike | 15 | 36V, 48V | 499 Wh | 2015–2019 |
| Stromer | 14 | 36V, 48V | 814 Wh | 2012–2023 |
| Focus | 13 | 36V | 558 Wh | 2014–2018 |
| ProdecoTech | 13 | 33V, 38.4V, 51.2V | 346 Wh | 2013–2015 |
| Electric Bike Technologies | 12 | 36V, 48V | 500 Wh | 2019–2020 |
| Moustache | 12 | 36V, 72V | 482 Wh | 2017–2022 |
| Electra | 11 | 36V, 48V | 396 Wh | 2012–2025 |
| iGO Electric | 11 | 36V, 48V | 378 Wh | 2014–2020 |
| Juiced Bikes | 11 | 48V, 52V | 676 Wh | 2013–2026 |
| Motiv | 11 | 36V, 48V | 480 Wh | 2013–2019 |
| AddMotoR | 10 | 48V | 556 Wh | 2018–2020 |
| Biktrix | 10 | 36V, 48V, 52V | 576 Wh | 2015–2024 |
| e-Joe | 10 | 36V, 48V | 504 Wh | 2013–2020 |
| EZ Pedaler | 10 | 36V | 432 Wh | 2013–2015 |
| Felt | 10 | 36V | 400 Wh | 2015–2017 |
| Retrospec | 10 | 36V, 48V | 500 Wh | 2024–2026 |
| Tern | 10 | 36V, 48V | 396 Wh | 2015–2025 |
| Vintage Electric | 10 | 48V, 52V, 72V | 702 Wh | 2015–2022 |
| A2B | 9 | 24V, 36V | 410 Wh | 2013–2015 |
| E-Lux | 9 | 48V | 624 Wh | 2015–2019 |
| eProdigy | 9 | 36V, 37V, 48V | 326 Wh | 2014–2018 |
| Giant | 9 | 36V | 497 Wh | 2017–2022 |
| Optibike | 9 | 37V, 48V, 52V | 481 Wh | 2013–2018 |
| SONDORS | 9 | 36V, 48V | 374 Wh | 2015–2021 |
| Urtopia | 9 | 36V, 48V | 353 Wh | 2022–2026 |
| Ariel Rider | 7 | 48V | 595 Wh | 2016–2019 |
| BESV | 7 | 36V, 36.3V | 403 Wh | 2015–2018 |
| Daymak | 7 | 24V, 36V, 48V | 360 Wh | 2015–2016 |
| ElectroBike | 7 | 36V | 324 Wh | 2016–2016 |
| Emazing Bike | 7 | 36V | 313 Wh | 2014–2017 |
| EUNORAU | 7 | 36V, 48V | 500 Wh | 2018–2019 |
| FLX | 7 | 36V, 48V | 468 Wh | 2016–2020 |
| Mokwheel | 7 | 36V, 48V | 940 Wh | 2023–2026 |
| Polaris | 7 | 29.6V, 44V | 264 Wh | 2013–2015 |
| BionX | 6 | 26V, 37V, 48V | 422 Wh | 2013–2015 |
| Faraday | 6 | 43V, 43.2V, 44V | 290 Wh | 2013–2018 |
| Outrider | 6 | 43.2V, 44.4V, 48V | 2,227 Wh | 2013–2016 |
| Sun Seeker | 6 | 36V, 48V | 480 Wh | 2017–2017 |
| Volton | 6 | 36V, 48V | 504 Wh | 2013–2016 |
| Yuba | 6 | 36V, 37V, 48V | 418 Wh | 2012–2019 |
| Amego | 5 | 48V | 624 Wh | 2018–2019 |
| Bianchi | 5 | 36V | 601 Wh | 2021–2023 |
| Cannondale | 5 | 36V | 396 Wh | 2017–2021 |
| Gocycle | 5 | 21.6V, 22V, 36V | 292 Wh | 2015–2021 |
| GOTRAX | 5 | 48V | 499 Wh | 2025–2026 |
| Grace | 5 | 36V, 43.16V, 48V | 400 Wh | 2013–2015 |
| Heybike | 5 | 48V | 680 Wh | 2025–2026 |
| Momentum | 5 | 36V, 48V | 496 Wh | 2022–2026 |
| PEGASUS | 5 | 36V | 482 Wh | 2019–2019 |
| Propella | 5 | 36V | 252 Wh | 2018–2022 |
| PuckiPuppy | 5 | 48V | 960 Wh | 2025–2026 |
| Qualisports | 5 | 36V, 48V | 504 Wh | 2019–2023 |
| Schwinn | 5 | 26.6V, 36V | 418 Wh | 2007–2021 |
| Big Cat | 4 | 36V | 288 Wh | 2014–2014 |
| BMEBIKES | 4 | 36V, 48V | 317 Wh | 2015–2015 |
| DOST | 4 | 48V | 672 Wh | 2020–2022 |
| E-BikeKit | 4 | 36V | 540 Wh | 2012–2014 |
| Enzo eBikes | 4 | 36V | 374 Wh | 2015–2019 |
| eZip | 4 | 24V, 25.6V, 36V | 240 Wh | 2013–2014 |
| M2S Bikes | 4 | 48V | 696 Wh | 2018–2019 |
| MOD BIKES | 4 | 48V | 576 Wh | 2019–2019 |
| Populo | 4 | 36V | 374 Wh | 2017–2018 |
| REVI Bikes | 4 | 48V | 624 Wh | 2018–2019 |
| Velec | 4 | 36V, 48V | 528 Wh | 2018–2019 |
| Xtracycle | 4 | 36V, 48V | 482 Wh | 2013–2019 |
| Diamondback | 3 | 48V | 422 Wh | 2014–2014 |
| Dillenger | 3 | 36V, 48V | 468 Wh | 2015–2016 |
| e-RAD | 3 | 36V, 48V | 557 Wh | 2014–2015 |
| Euphree | 3 | 48V | 720 Wh | 2024–2026 |
| GenZe | 3 | 36V | 313 Wh | 2014–2018 |
| Hill Topper | 3 | 36V | 396 Wh | 2014–2018 |
| JupiterBike | 3 | 36V, 48V | 281 Wh | 2019–2025 |
| KONA | 3 | 36V | 504 Wh | 2020–2021 |
| Lapierre | 3 | 36V | 400 Wh | 2014–2016 |
| Nakto | 3 | 36V, 48V | 374 Wh | 2019–2019 |
| NCM | 3 | 48V | 624 Wh | 2019–2019 |
| Orbea | 3 | 36V | 540 Wh | 2017–2023 |
| Rambo Bikes | 3 | 48V | 500 Wh | 2019–2019 |
| Revolve | 3 | 36V, 48V | 624 Wh | 2017–2019 |
| Serial 1 | 3 | 36V | 529 Wh | 2022–2022 |
| Spark Bikes | 3 | 48V | 816 Wh | 2019–2019 |
| SSR Motorsports | 3 | 36V, 48V | 360 Wh | 2015–2015 |
| Superpedestrian | 3 | 48V | 279 Wh | 2014–2017 |
| Urban Arrow | 3 | 36V | 418 Wh | 2014–2021 |
| VeloMini | 3 | 24V | 216 Wh | 2013–2016 |
| Virtue Cycles | 3 | 36V, 48V | 317 Wh | 2015–2016 |
| 8Fun | 2 | 36V, 48V | – | 2014–2014 |
| Add-E | 2 | 22.2V | 133 Wh | 2015–2015 |
| Benno | 2 | 36V | 396 Wh | 2017–2020 |
| Biria | 2 | 24V, 48V | 422 Wh | 2013–2016 |
| Bodhi | 2 | 24V | 209 Wh | 2013–2013 |
| BPM Imports | 2 | 48V | 1,008 Wh | 2019–2019 |
| Bunch Bikes | 2 | 36V, 48V | 720 Wh | 2020–2021 |
| California Bicycle Factory | 2 | 48V | 384 Wh | 2019–2019 |
| CERO | 2 | 36V | 504 Wh | 2017–2021 |
| Currie | 2 | 24V | 240 Wh | 2012–2013 |
| Desiknio | 2 | 36V | 250 Wh | 2018–2018 |
| DJ Bikes | 2 | 48V | 624 Wh | 2018–2018 |
| E-Glide | 2 | 36V, 48V | 547 Wh | 2017–2017 |
| eFlow | 2 | 36V | 522 Wh | 2014–2014 |
| EMOJO | 2 | 48V | 720 Wh | 2019–2019 |
| Energie Cycles | 2 | 36V | 576 Wh | 2014–2015 |
| Espin | 2 | 36V, 48V | 672 Wh | 2017–2019 |
| eVox | 2 | 48V, 96V | 420 Wh | 2015–2017 |
| F4W | 2 | 36V | 324 Wh | 2013–2013 |
| Falco | 2 | 36V, 48V | 557 Wh | 2014–2014 |
| Fantic | 2 | 36V, 36.5V | 630 Wh | 2018–2018 |
| Fiido | 2 | 36V | 418 Wh | 2025–2025 |
| Freway | 2 | 36V | 396 Wh | 2016–2017 |
| Fuji | 2 | 36V | 482 Wh | 2017–2017 |
| Gepida | 2 | 36V | 482 Wh | 2019–2019 |
| Hebb | 2 | 37V | 518 Wh | 2012–2013 |
| Hi-Power Cycles | 2 | 37V, 51.8V | 622 Wh | 2015–2015 |
| Jetson | 2 | 36V, 48V | 816 Wh | 2014–2022 |
| Kranked | 2 | 43V, 52V | 560 Wh | 2015–2016 |
| KTM | 2 | 36V | 396 Wh | 2016–2017 |
| Leed | 2 | 24V | 250 Wh | 2014–2014 |
| Leisger | 2 | 36V | 468 Wh | 2015–2015 |
| Liberty Trike | 2 | 36V | 360 Wh | 2016–2019 |
| Liv | 2 | 36V | 497 Wh | 2019–2022 |
| M55 | 2 | 36V, 43.2V | 1,607 Wh | 2014–2014 |
| Mando | 2 | 36V, 36.2V | 295 Wh | 2013–2015 |
| Monarc | 2 | 48V | 720 Wh | 2026–2026 |
| Ness | 2 | 42V | 546 Wh | 2017–2017 |
| Organic Transit | 2 | 48V | 533 Wh | 2013–2014 |
| Piaggio | 2 | 37V | 418 Wh | 2017–2017 |
| PUBLIC Bikes | 2 | 48V | 422 Wh | 2016–2016 |
| Pure Cycles | 2 | 42V | 244 Wh | 2018–2018 |
| Ridekick | 2 | 24V | 288 Wh | 2012–2015 |
| Riide | 2 | 36V | 313 Wh | 2014–2016 |
| Rocky Mountain | 2 | 48V | 500 Wh | 2019–2019 |
| Scott | 2 | 36V | 396 Wh | 2016–2016 |
| Segway | 2 | 48V | 720 Wh | 2026–2026 |
| SmartMotion | 2 | 48V | 696 Wh | 2016–2016 |
| Snelheid Cycles | 2 | 37V, 51.8V | 466 Wh | 2016–2016 |
| Stealth | 2 | 48V, 72V | 1,440 Wh | 2013–2013 |
| Tenways | 2 | 36V, 48V | 720 Wh | 2025–2026 |
| Trivel | 2 | 48V | 499 Wh | 2018–2018 |
| Yamaha | 2 | 36V | 490 Wh | 2019–2019 |
| Zeitgeist | 2 | 36V, 48V | 418 Wh | 2016–2016 |
| Aerobic Cruiser | 1 | 49.8V | 1,245 Wh | 2013–2013 |
| AIMA Ebike | 1 | 48V | 720 Wh | 2025–2025 |
| Alizeti | 1 | 24V | 278 Wh | 2019–2019 |
| Ancheer | 1 | 36V | 288 Wh | 2019–2019 |
| Batch Bicycles | 1 | 36V | 400 Wh | 2019–2019 |
| Belon Engineering | 1 | 24V | 257 Wh | 2015–2015 |
| Benelli | 1 | 36V | 324 Wh | 2015–2015 |
| Biomega | 1 | 36V | 356 Wh | 2016–2016 |
| Biruni | 1 | 36V | 432 Wh | 2014–2014 |
| Bluejay | 1 | 48V | 557 Wh | 2021–2021 |
| Borealis | 1 | 36V | 630 Wh | 2024–2024 |
| Box Bike Collective | 1 | 36V | 288 Wh | 2015–2015 |
| Brompton | 1 | 36V | 202 Wh | 2014–2014 |
| Butchers & Bicycles | 1 | 36V | 396 Wh | 2017–2017 |
| Buzz | 1 | 36V | 374 Wh | 2019–2019 |
| C3STROM | 1 | 52V | 1,040 Wh | 2022–2022 |
| CANYON | 1 | 36V | 482 Wh | 2022–2022 |
| Coboc | 1 | 36V | 352 Wh | 2018–2018 |
| Corratec | 1 | 36V | 396 Wh | 2017–2017 |
| Cutler Cycles | 1 | 48V | 720 Wh | 2015–2015 |
| Dahon | 1 | 48V | 317 Wh | 2014–2014 |
| Day 6 | 1 | 48V | 557 Wh | 2016–2016 |
| Delfast | 1 | 72V | 3,456 Wh | 2021–2021 |
| Devinci | 1 | 36V | 418 Wh | 2022–2022 |
| Eahora | 1 | 48V | 624 Wh | 2019–2019 |
| EccoBike | 1 | 48V | 624 Wh | 2018–2018 |
| EcoMotion | 1 | 36V | 374 Wh | 2018–2018 |
| Elby | 1 | 48V | 557 Wh | 2017–2017 |
| Euybike | 1 | 48V | 1,200 Wh | 2025–2025 |
| EV Global Motors | 1 | 36V | 288 Wh | 2005–2005 |
| Everly | 1 | 36V | 187 Wh | 2016–2016 |
| EVO | 1 | 48V | 317 Wh | 2016–2016 |
| Flash | 1 | 36V | 418 Wh | 2017–2017 |
| Flight | 1 | 24V | 216 Wh | 2013–2013 |
| FlyKly | 1 | 30V | 180 Wh | 2014–2014 |
| Ford | 1 | 48V | 480 Wh | 2013–2013 |
| FTH Power | 1 | 48V | 1,114 Wh | 2019–2019 |
| Furo Systems | 1 | 36V | 313 Wh | 2019–2019 |
| Go-Ped | 1 | 25.9V | 207 Wh | 2006–2006 |
| Go Power | 1 | 48V | 480 Wh | 2019–2019 |
| Golden Motor | 1 | 48V | 480 Wh | 2014–2014 |
| Green World Bike | 1 | 36V | 360 Wh | 2015–2015 |
| Himiway | 1 | 48V | 840 Wh | 2020–2020 |
| HP Velotechnik | 1 | 36V | 558 Wh | 2014–2014 |
| Hynox | 1 | 48V | 720 Wh | 2026–2026 |
| IES | 1 | 36V | – | 2004–2004 |
| JackRabbit | 1 | 36V | 720 Wh | 2025–2025 |
| JOLT eBike | 1 | 36V | 281 Wh | 2018–2018 |
| Junto | 1 | 48V | 557 Wh | 2018–2018 |
| Lithium Cycles | 1 | 48V | 557 Wh | 2017–2017 |
| M1 Sporttechnik | 1 | 48V | 880 Wh | 2015–2015 |
| Marin | 1 | 36V | 630 Wh | 2022–2022 |
| Marrs Cycles | 1 | 48V | 960 Wh | 2016–2016 |
| MAXFOOT | 1 | 48V | 672 Wh | 2019–2019 |
| MOAR eBikes | 1 | 48V | 624 Wh | 2017–2017 |
| Montague | 1 | 36V | 418 Wh | 2020–2020 |
| Mooncool | 1 | 48V | 720 Wh | 2026–2026 |
| Nicolai | 1 | 36V | 396 Wh | 2015–2015 |
| Nireeka | 1 | 36V | 374 Wh | 2021–2021 |
| Oyama | 1 | 36V | 360 Wh | 2017–2017 |
| PESU | 1 | 36V | 522 Wh | 2018–2018 |
| PIM Bicycles | 1 | 48V | 384 Wh | 2017–2017 |
| Pivot Cycles | 1 | 36V | 500 Wh | 2019–2019 |
| Platinum e-Bikes | 1 | 36V | 504 Wh | 2017–2017 |
| Rattan | 1 | 48V | 499 Wh | 2019–2019 |
| Revelo | 1 | 36V | 360 Wh | 2015–2015 |
| RIZE Bikes | 1 | 48V | 768 Wh | 2020–2020 |
| Rubbee | 1 | 14.4V | 288 Wh | 2015–2015 |
| ShareRoller | 1 | 30V | 240 Wh | 2014–2014 |
| Smart | 1 | 48V | 422 Wh | 2014–2014 |
| Solex | 1 | 36V | 418 Wh | 2015–2015 |
| Soul Fast E Bikes | 1 | 48V | 696 Wh | 2020–2020 |
| Spark Cycleworks | 1 | 48V | 1,176 Wh | 2021–2021 |
| Sun Bicycles | 1 | 36V | 360 Wh | 2017–2017 |
| Super73 | 1 | 48V | 960 Wh | 2021–2021 |
| Surly | 1 | 36V | 482 Wh | 2019–2019 |
| Synergy | 1 | 48V | 672 Wh | 2020–2020 |
| Téo | 1 | 48V | 835 Wh | 2017–2017 |
| Torker | 1 | 26.6V | 266 Wh | 2009–2009 |
| Tower | 1 | 48V | 672 Wh | 2019–2019 |
| Troxus | 1 | 48V | 672 Wh | 2026–2026 |
| Urban Drivestyle | 1 | 48V | 696 Wh | 2019–2019 |
| Vanmoof | 1 | 24V | 209 Wh | 2014–2014 |
| vBike | 1 | 48V | 1,440 Wh | 2022–2022 |
| Vela | 1 | 36V | 360 Wh | 2015–2015 |
| Vilano | 1 | 36V | 317 Wh | 2016–2016 |
| Vvolt | 1 | 36V | 490 Wh | 2024–2024 |
| Walleräng | 1 | 36V | 418 Wh | 2017–2017 |
| Wallke | 1 | 48V | 2,640 Wh | 2026–2026 |
| Watseka | 1 | 36V | 324 Wh | 2016–2016 |
| Wildsyde | 1 | 36V | 468 Wh | 2019–2019 |
| Worksman Cycles | 1 | 48V | 480 Wh | 2017–2017 |
| Xing Technologies | 1 | 36V | 238 Wh | 2018–2018 |
| Zehus | 1 | 30V | 160 Wh | 2014–2014 |
| Zen | 1 | 36V | 500 Wh | 2022–2022 |
Largest e-bike batteries
Top 15 models by battery capacity
| # | Model | Year | Battery | Capacity | Max range |
|---|---|---|---|---|---|
| 1 | Delfast TOP 3.0 | 2021 | 72V 48Ah | 3,456 Wh | 200 mi |
| 2 | Outrider Horizon | 2014 | 43.2V 69Ah | 3,000 Wh | 105 mi |
| 3 | Wallke H9 Ultra | 2026 | 48V 55Ah | 2,640 Wh | – |
| 4 | Rad Power Bikes RadBurro | 2019 | 48V 52.5Ah | 2,520 Wh | 80 mi |
| 5 | Rad Power Bikes RadBurro | 2018 | 48V 52.5Ah | 2,520 Wh | 80 mi |
| 6 | Outrider Alpha 4 Series | 2016 | 48V 46.4Ah | 2,227 Wh | 170 mi |
| 7 | Outrider Nomad 3 Series | 2016 | 48V 46.4Ah | 2,227 Wh | 170 mi |
| 8 | Outrider 2013 422 Alpha | 2013 | 44.4V 50Ah | 2,200 Wh | 165 mi |
| 9 | Outrider 422 Alpha | 2014 | 44.4V 48Ah | 2,131 Wh | 160 mi |
| 10 | Revolve 60+ Miles | 2019 | 48V 35Ah | 1,680 Wh | 80 mi |
| 11 | M55 Terminus | 2014 | 43.2V 37.2Ah | 1,607 Wh | 60 mi |
| 12 | Optibike R15C Carbon Fiber | 2018 | 52V 29.5Ah | 1,534 Wh | 100 mi |
| 13 | Stealth Bomber | 2013 | 72V 20Ah | 1,440 Wh | 40 mi |
| 14 | vBike CITO 20 Plus | 2022 | 48V 30Ah | 1,440 Wh | 120 mi |
| 15 | Aerobic Cruiser Innovation | 2013 | 49.8V 25Ah | 1,245 Wh | 65 mi |
Frequently asked questions
What voltage are most e-bike batteries?
Most e-bikes use 36V or 48V packs. In our index, 28 models are 24V, 675 models are 36V, 9 models are 36.3V, 38 models are 37V. 52V packs are common on high-performance and conversion builds.
How big is a typical e-bike battery?
The median e-bike battery in our index is 482 Wh. Commuter bikes usually carry 400 to 700 Wh; cargo and long-range bikes often have 700 Wh or more, sometimes across two packs.
Can I put a different battery on my e-bike?
Usually yes, if the replacement matches your original nominal voltage, fits the same mount or baseplate, uses the same discharge connector, and its BMS current rating is at least your controller limit. Higher Ah at the same voltage adds range. A higher voltage can damage your controller.
How long does an e-bike battery last?
Most lithium-ion e-bike packs keep about 70 to 80 percent of their capacity after 500 to 1,000 full charge cycles, which is roughly 3 to 5 years of regular riding. Heat, storage at full charge, and deep discharges shorten that.