Buy Used External Batteries

Shop tested and inspected pre-owned external batteries for electric bicycles in Singapore. Capacity load tested by workshop technicians for dependable backup range.

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External Battery for JI-Move MC - Standard 21Ah (36V) (Used)
External Battery for Mido Pro - Samsung 10Ah (36V) (Used)
✓ Diagnostic Capacity Tested
✓ Safe Cell Voltage Balance
✓ Affordable Backup Power
✓ Workshop 1-to-1 Fitment Check
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External Battery for Mido Pro - Samsung 10Ah (36V) (Used)
Electric Bicycle Accessories
External Battery for Mido Pro - Samsung 10Ah (36V) (Used)
★★★★☆
$0.00
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External Battery for JI-Move MC - Standard 21Ah (36V) (Used)
Electric Bicycle Accessories
External Battery for JI-Move MC - Standard 21Ah (36V) (Used)
★★★★★
$0.00
Chat Order
HELP & BUYING GUIDE

Frequently Asked Questions About Used External Batteries

Understanding cell voltage balance, capacity health ratings, and compatibility with your e-bike model.

Every pre-owned external battery undergoes rigorous computerized load bank testing. We verify that individual cell group voltages are balanced, test actual Ampere-hour (Ah) discharge capacity, and verify that the Battery Management System (BMS) cuts off properly.
Battery compatibility requires matching operating voltage (36V vs 48V), physical casing style, and discharge pinout connectors. Send a photo of your existing battery and mounting plate to our WhatsApp team for verified fitment.
We only certify and sell pre-owned batteries that retain strong usable capacity (typically 80% to 90%+ of original rated Ah), making them an economical choice for auxiliary range.
Yes. All pre-owned external batteries include our workshop warranty coverage against cell failure or BMS defects, giving you complete peace of mind.
Yes. Our technicians at Tai Seng and Canberra can mount the battery casing, test parallel discharge wiring, and verify charger operation.
Yes! Bring your e-bike to our Tai Seng or Canberra workshop. We will mount the battery, verify power connection, and let you test ride to ensure seamless performance.

Need Help Choosing the Right Used External Batteries?

Need an affordable backup battery for food delivery shifts? WhatsApp our workshop to check tested battery health.

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