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Battery · Aftermarket · Yose Power
Yose Power 48 V 17.5 Ah triangle battery for SONDORS X/XS/MXS/Smart Step
No public part number
Aftermarket replacement for SONDORS X / XS / MXS 48 V 17.5 Ah triangle battery.
- Voltage
- 48 V
- Capacity
- 17.5 Ah
- Safety certification
- Not documented
Yose Power shop page: 48 V 17.5 Ah, 841 Wh, 'LG MJ1' cells, 1000+ cycles, approx 4.3 kg with holder; fits 'Sondors X XS MXS, Steps, Smart Step from 2019-2023, Smart Steps purchased from Costco for all years'. No UL 2271/2849 stated. The Smart Step is a 36 V bike according to Electric Bike Review, so a 48 V pack would be a change of voltage: confirm with the seller before ordering. Certifications stated by seller: CE, UKCA, RoHS, UN38.3
Fits these bikes
- VerifiedSONDORS X 500 WThe seller lists this part as compatible with this generation.Yose Power shop page · checked Sep 8, 2026
- VerifiedSONDORS XS 750 WThe seller lists this part as compatible with this generation.Yose Power shop page · checked Sep 8, 2026
- ProbableSONDORS Smart Step 2020+Seller explicitly lists 'Smart Step from 2019-2023' but the Smart Step is a 36 V system (EBR: 36 V 10.4 Ah, 36 V 15 A controller); a 48 V pack is a voltage mismatch with the stock controller unless a later Smart Step variant used 48 V. Not downgraded to incompatible because the seller states fit explicitly; needs confirmation.Yose Power shop page vs EBR Smart Step spec sheet · checked Sep 8, 2026
Where to buy
Out of stock everywhere we checked · last recorded price $297
| Seller | OEM / Aftermarket | Price | Stock | Last checked | |
|---|---|---|---|---|---|
| Yose Power Shop | Aftermarket | $297 | Out of stock | Checked Sep 8, 2026 | See listing |
- Yose Power ShopAftermarketOut of stockChecked Sep 8, 2026$297See listing
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