FAQs: Battery System

1) Which battery cell brands are common in e-scooters? Which are more durable?

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• Samsung: excellent high-rate discharge and long cycle life, used across Hiley performance models (e.g., Tiger 10 V5 60V 25Ah, Tiger SUPRA 60V 40Ah, Tiger KING RS).
• LG: high energy density and stable performance.
• Panasonic: common in premium EV applications.
• Other brands (e.g., ATL, Lishen, Far East): strong pricing; consistency can be lower than top-tier brands.

Pack consistency, capacity fade, and cycle life drive long-term range stability and safety.

2) What is a BMS and why is it essential?

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• Protection: overcharge, over-discharge, short-circuit, overheating.
• Cell balancing for lifespan and consistency.
• Current limiting to prevent damage from excessive draw.

Without a BMS, a battery is like a car without brakes, risking swelling, overheating, or even fire.

3) Does a dual charging port actually speed things up? Is it safe?

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Yes. Provided the pack/BMS supports dual inputs and both chargers match in voltage.

• Use OEM or fully compatible chargers with the same output voltage and appropriate current.
• If the BMS does not support parallel inputs, do not attempt dual charging.
• When rapid turnarounds aren’t necessary, single-port charging is gentler on the pack.

4) How long does it take to fully charge? What affects charge time?

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Rule of thumb: Charge Time ≈ Capacity (Ah) ÷ Charger Current (A). State of charge, thermal throttling, and dual-port use (if supported) will change the real-world result.

Tiger KING RS (Samsung): with 84V 3A fast charger, dual-charger setup can reach ~5 hours to full.

5) Is a bigger battery always better?

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• ✅ Longer range; supports higher sustained power.
• ❌ Adds weight, cost, and charge time.

Choose to fit your use: ~20Ah often suits daily commuting; for off-road/touring, consider 40Ah+ (e.g., Tiger SUPRA 60V 40Ah).

6) When should I replace my e-scooter battery?

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• Range drops below ~50% of original.
• Swelling/case deformation.
• “Charges too fast” yet delivers poor range.
• Unexpected shut-offs or frequent low-voltage warnings.

Typical lithium packs last about 500–800 cycles (~2–3 years at one charge per day).

7) Why does my battery drain faster in winter? How do I care for it?

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• Expect 30–50% range reduction in low temperatures.
• Let the pack warm to room temp (~30 minutes) before charging.
• Avoid deep discharges below 0°C (32°F).
• Switch main power off during storage to reduce parasitic drain.

8) Are e-scooter batteries waterproof? Is riding in the rain safe?

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All Hiley models feature an IPX7 waterproof rating for the vehicle, offering robust protection for real-world riding. Even so, we don’t recommend long rides in heavy rain or riding through pooled water.

For best results in wet conditions:

• Keep ports sealed with rubber dust caps.
• Avoid submersion and deep standing water.
• Dry and inspect connectors after harsh weather.