Lithium Batteries & Motors: A Quick Guide to Perfect Pairing

Choosing the right lithium battery for your electric bike or scooter motor isn’t just about power—it’s about safety, efficiency, and longevity.  Here’s how to match them like a pro:

1️⃣ Voltage: Match Exactly!
Your battery’s nominal voltage must match your motor’s rated voltage (e.g., 36V, 48V, 52V).

⚠️ Mismatch risks:

Undervoltage: Poor performance, overheating.

Overvoltage: Permanent motor/controller damage.

2️⃣ Current: Plan for Peaks
Continuous Current:

Ensure the battery’s BMS continuous discharge rating (e.g., 30A) ≥ motor’s continuous current draw.

Peak Current:

Battery’s peak discharge rating (e.g., 50A) must cover motor surges (e.g., hill starts).

🔋 Tip: A 250W motor @ 48V draws ~5.2A continuous, but needs 15–30A+ for peaks!

3️⃣ Capacity (Ah): Range = Voltage × Amp-Hours
Higher Ah = Longer range (e.g., 48V 20Ah = 960Wh).

⚖️ Balance weight vs. range: Bigger batteries add bulk.

4️⃣ Connectors & Wiring
Use connectors rated for peak current (e.g., XT90 for 50A+).

Thick wires (10–8 AWG) minimize voltage drop and heat.

⚡ The Golden Rule
Battery Specs ≥ Motor’s Max Demands
(Voltage: Match | Current: Exceed | Capacity: Suit Your Range)

🛠️ Example Pairing
Motor: 48V 500W (Peak: 25–40A)

Ideal Battery:

48V,15-20Ah

BMS: 40A continuous / 60A peak


Why This Matters:
✅ Prevents BMS cutoffs
✅ Avoids melted wires/fuses
✅ Maximizes battery lifespan
✅ Unlocks full motor potential

Always check motor specs and consult battery/motor manuals.  When in doubt, please feel free to contact us(fenglipower@outlook.com).

Our battery fits most motor kits, for example: Bafang, Voilamart, CSC, Tongsheng, Ebikling etc..., but exclude these four: Bosch, SHIMANO, Yamaha, Panasonic.

zostaw komentarz