What Are the Differences Between Chargers With Different Amps?

If you own an electric scooter like the Hiley Tiger KING RS, you might have seen that it comes with an 84V 3A charger. But there are also 2A and 5A chargers available. So what are the differences between them, and which one is better for you? Let’s break it down in simple terms.

1. Charging Speed

This is what most people care about. The higher the amp number, the faster it charges. Here’s a rough idea of how long it takes to fully charge a 72V 35Ah battery:

• 2A charger: About 18 hours
• 3A charger: About 12 hours
• 5A charger: About 7 hours

If you’re in a hurry or use your scooter daily, a 5A charger can save a lot of time.

2. Price

Higher amp chargers are more expensive. On average:

• 2A charger: Lower price
• 3A charger: Mid-range
• 5A charger: Highest price

If you're on a tight budget and don’t mind slower charging, 2A is fine. Otherwise, 3A gives a good balance of speed and cost.

3. Battery Health

Slow charging (like with 2A) is easier on your battery and keeps it healthy longer. Fast charging (like with 5A) can make the battery warmer, which may slightly reduce its life over time. However, the Tiger KING RS has a large battery, so even 5A is considered safe by most users.

4. Safety

Low amp chargers produce less heat and are generally very safe. High amp chargers get hotter and need built-in cooling, like fans. That’s why it’s important to use quality chargers with proper safety labels. Avoid cheap, uncertified chargers as they can overheat or fail.

Which One Should You Choose

If you ride long distances often and don’t want to wait overnight to charge, a 5A charger is a smart choice. If you charge at home and have plenty of time, a 2A charger is gentle and budget-friendly. For most riders, the standard 3A charger offers the best of both worlds.

Also, all model of Hiley scooters have two charging ports, support dual charging. That means you can plug in two chargers at the same time to cut the charging time in half.

Final Thoughts

Faster chargers are helpful, but you should always balance speed, cost, battery care, and safety. Make sure any charger you use matches the voltage and plug of your scooter and is from a trusted brand.

Still not sure? Start with the one that comes with your scooter and upgrade later if you need more speed.