REBUILD. RESTORE. RECHARGE.

New Zealand’s Battery Service Specialists

New Zealand’s Complete Battery Service Centre

At Black Sheep Trading, we specialise in professional diagnostics, repairs, and repacking for all lithium battery systems used in:


  • Electric dirt bikes (EMOTO)

  • Electric scooters

  • E-bikes & cargo bikes

  • Custom lithium packs

From Surron and Talaria to E-Ride Pro, Segway, Niu, Evolve, Fiido, Kaabo, and everything in between — if it uses a lithium pack, we can service it.

Our skilled high-voltage technicians work daily on batteries sent from all over New Zealand.

Why Riders & Commuters Trust Black Sheep Trading


  • Specialist battery technicians trained in EMOTO, scooter, and e-bike power systems

  • Full diagnostic reporting — not guesswork

  • NZ-wide courier service for battery assessments

  • OEM and high-grade replacement parts

  • Safe, certified lithium handling procedures

  • Fast turnaround and transparent pricing

  • Factory-direct access to major EMOTO components

We aren’t general bike mechanics — we’re New Zealand’s electric mobility battery experts.

🔧 Our Full Battery Service Range

1. Comprehensive Battery Diagnostics

We provide detailed assessments for all battery types, including:


  • Cell balance & health checks

  • Voltage sag testing under load

  • Internal resistance & capacity measurement

  • BMS condition & fault detection

  • Thermal and water-ingress evaluation

  • Charge behaviour analysis

  • Connector, fuse, and wiring inspection

You receive a clear diagnostic report before approving any repairs.

2. Battery Repairs

Our workshop handles everything from simple fixes to advanced internal repairs:

EMOTO • Scooters • E-Bikes


  • BMS replacements & resets

  • Damaged connector repair

  • Water damage and corrosion treatment

  • Cell-group failures

  • Short circuits & fuse replacements

  • Power dropouts under load

  • Charging faults & cut-outs

All repairs are safety-tested and load-tested before return.

3. Battery Repacking & Full Rebuilds

If your battery is old, weak, or beyond standard repair, we can rebuild it.

We offer:


  • Full cell replacement with premium-grade cells

  • Rebalancing of all cell groups

  • BMS upgrade or replacement

  • Fresh seals, wiring, and structural reinforcement

  • Performance or capacity upgrades (where applicable)

A repacked battery often delivers better performance and lifespan than the original.

4. Custom Battery Builds (Optional)

Perfect for:


  • Long-range commuters

  • High-performance off-road riders

  • Cargo e-bikes

  • Commercial fleets

  • DIY or retrofit projects

We can tailor the voltage, capacity, and discharge profile.

🚚 Nationwide Battery Service – Send It to Us

You don’t need to be in Christchurch.


  1. Contact us for packaging instructions

  2. Send your battery by courier

  3. Our technicians diagnose and quote

  4. You approve or decline the work

  5. We repair, repack or rebuild

  6. We courier it back ready to ride

Fast, safe, and fully trackable.

⚠️ Common Problems We Fix

E-Motos


  • Power cutouts under acceleration

  • BMS lockouts

  • Weak cell groups

  • Voltage sag at high load

Scooters


  • No power after charging

  • Sudden shutoffs at low speed

  • Water damage (very common)

  • Swollen packs or overheating

E-Bikes


  • Reduced range

  • Battery won’t charge

  • Faulty BMS or cells

  • Damaged output connectors

If your electric vehicle isn’t performing, your battery is usually the cause — we can fix it.

💲 Pricing Guide

Diagnostic Report: from $89

Repairs: varies depending on ithe ssue

BMS Replacement: varies depending on the BMS

Battery Repack / Rebuild: Custom quoted

Custom Packs: POA

You will always receive a quote before any work begins.

🔋 Brands We Service

EMOTO / Electric Dirt Bikes

Surron • Talaria • E-Ride Pro • Segway • Storm Bee • Light Bee • Talaria XXX

Electric Scooters

Kaabo • Niu • Segway • Fiido • Evolve • Apollo • Xiaomi • All other major brands



Plus all standard 36V / 48V / 52V / 60V / 72V lithium packs

If it’s lithium — we can diagnose, repair or rebuild it.

📞 Book Your Battery In Today

Get your electric bike, scooter, or EMOTO back to full power.

📍 Christchurch workshop

📦 Nationwide courier service available

🛠 Fast turnaround and expert technicians

🌐 Contact us anytime

Black Sheep Trading

New Zealand’s trusted specialists in battery diagnostics, repairs & repacking.

Learn more