Battery Hub
E-Mobility Battery Engineering & Fitment Portal
Navigating voltage, discharge rates, BMS sizing, and compartment measurements for Sur-Ron, Talaria, custom motor setups, and high-kW builds.
1. Vehicle Guides
Sur-Ron Packs
Complete upgrade guide for 60V stock controllers & 72V aftermarket high-kW setups (Torp, EBMX, Fardriver). Includes Lid Riser fitments.
Talaria Series
Gearbox-matched 60V/72V upgrade guide. Sting MX3/MX4 top-hatch configurations vs. Talaria XXX bottom slide-in tray dimensions.
DIY E-Bike Builds
High-capacity monster packs, custom triangles, and EEB steel frame builds designed for heavy-duty commuters and off-road power.
2. Motors & Controllers
QS138 / 165 Motor
Continuous and peak current requirements for QS mid-drive motors paired with high-voltage 72V / 84V lithium packs.
Hub Motor Guide
Selecting 48V, 52V, and 72V triangle or rear-rack batteries for direct-drive and geared hub motors up to 5000W+.
Fardriver Controller
How to configure Smart BMS discharge ratings (100A to 300A+) to prevent voltage sag and controller over-current trips.
Sabvoton & VESC
Advanced sine-wave and field-oriented control (FOC) configuration matching for high-performance battery packs.
Kelly Controller
Rugged controller setup guidelines, regeneration parameters, and safety limits for custom lithium builds.
3. Basics & Planning
Measuring Space Guide
4-step workflow to measure internal length, width, height, and cable routing space inside your frame before ordering custom packs.
Voltage, Ah & BMS Guide
Understanding nominal voltage, capacity (Amp-hours), energy (Wh), and continuous BMS discharge thresholds.
Connectors & Charger
Comparing QS8 Anti-Spark, XT90-S, Anderson plugs, and selecting the correct CC/CV smart lithium chargers.
Engineering Consult
Connect directly with our battery engineering team to design custom dimensions, cell layouts, and discharge profiles.
Support & Warranty
Review our manufacturing warranty terms, safety guidelines, shipping procedures, and customer service resources.
