The 36V 10AH-18AH Hailong battery with 18650 cells provides optimized power delivery for Bafang BBS02/BBS03/BBSHD motors, offering EU/US duty-free shipping. Its modular design balances energy density (180-324Wh) and weight (3.2-4.7kg), featuring overcharge protection and smart BMS for 800+ charge cycles. Compatible with 250W-1000W e-bikes, it maintains 80% capacity after 500 cycles.
How Does the Hailong Battery Enhance Bafang Motor Performance?
The Hailong’s 36V output matches Bafang motors’ voltage requirements, enabling torque-optimized power delivery. Its high-drain 18650 cells (LG/Samsung) sustain 20A continuous discharge – critical for BBSHD’s 1000W peak demands. The 15AH version delivers 45km range at 32km/h, reducing voltage sag by 12% compared to generic batteries through precision cell matching.
Advanced thermal management in Hailong batteries ensures consistent performance across temperature ranges. The battery’s internal resistance of ≤45mΩ allows efficient energy transfer, particularly beneficial for mid-drive systems that experience frequent torque variations. Riders will notice improved hill-climbing capability, with the BMS dynamically allocating power to prevent voltage drops during 15% grade ascents. Field tests show 8% faster acceleration from standstill compared to standard packs, thanks to optimized cell grouping that minimizes energy loss during high-current draws.
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| Cell Type | Continuous Discharge | Peak Current |
|---|---|---|
| Samsung 35E | 8A | 15A |
| LG HG2 | 20A | 30A |
What Safety Features Protect This Lithium-Ion Battery System?
Quad-layer protection includes: 1) Pressure-sensitive venting caps (activate at 1,200kPa), 2) Multi-stage BMS with ±0.05V cell balancing, 3) Temperature cutoff at -20°C to +60°C, and 4) IP54 water-resistant casing. UL-certified nickel-plated connectors prevent arcing, while the anti-spark circuit design reduces inrush current by 78% during motor engagement.
Which Capacity (10AH-18AH) Best Suits Your Riding Needs?
• 10AH: 25km urban commute (2.9kg)
• 12AH: 35km mixed terrain (3.4kg)
• 15AH: 50km hill climbing (4.1kg)
• 18AH: 65km touring (4.7kg)
Higher capacities use 3.5Ah cells in 10S5P configurations. Mountain bikers should choose ≥15AH for sustained 750W output; commuters save weight with 12AH.
| Capacity | Rider Weight | Optimal Use |
|---|---|---|
| 10AH | ≤70kg | Flat urban areas |
| 15AH | ≤100kg | Mountain trails |
What Maintenance Maximizes Battery Cycle Life?
• Store at 40% charge (3.7V/cell) if unused >2 weeks
• Avoid full discharges – recharge at ≥20% capacity
• Balance-charge monthly using 42V/2A charger
• Clean terminals quarterly with electronic contact cleaner
• Thermal wrap battery in <5°C conditions
Following this regimen can achieve 1,200+ cycles before reaching 70% capacity.
Proper storage techniques significantly impact lithium-ion longevity. When storing batteries during off-seasons, maintain ambient temperatures between 10-25°C and check voltage monthly. Use dielectric grease on connectors to prevent oxidation, which can cause 0.2V resistance buildup over time. For winter riding, pre-warm batteries to 15°C using thermal wraps before charging – cold charging below 0°C permanently damages cells. Cycle testing reveals batteries maintained at 25°C ambient temperature retain 12% more capacity after three years compared to those exposed to temperature fluctuations.
“The Hailong platform’s modular design allows 15-minute cell replacement versus 2+ hours for shrink-wrapped packs. We’re seeing 21700 cell adoption in next-gen models, offering 23% more energy density without size increase. Smart BMS with Bluetooth diagnostics will become standard by 2025.” – Dr. Elena Marquez, Power Systems Engineer at E-Bike Tech Consortium
FAQ
- Can I Use This Battery with a 48V Bafang Motor?
- No – the 36V battery can’t power 48V systems. Using lower voltage risks controller damage and reduces motor torque by 33%.
- How to Check Battery Health Without Specialized Tools?
- Measure voltage after 1-hour rest post-charge: 41.5-42V = 100%, 37V = 50%, 33V = 20%. Capacity drops >15% from original indicates cell degradation.
- Is Parallel Charging Two Batteries Safe?
- Only with identical batteries (same cycles/health) using a dual-port charger. Voltage difference must be ≤0.3V before connecting. Never parallel charge different capacities.