E-Skateboard Charging Time & Efficiency Calculator

Calculate charging time, efficiency tips, and power usage based on battery size, charger type, and conditions to minimize downtime and costs.

‍

Plans charging for commutes.

‍

We ask for battery capacity, charger power, current battery level, charging environment, power source, efficiency goal, and battery age/health because these estimate time (e.g., 3 hours for 400Wh). These inputs minimize downtime. Limitation: the tool uses averages and may not account for charger efficiency loss; monitor actual charging.

‍

E-Skate Charging Guide

Input Summary

• Battery Capacity: 300-400Wh
• Charging Power: 50-100W
• Current Charge Level: 0-20%
• Temperature: Room Temperature (60-80°F)
• Charging Method: Fast Charge
• Battery Condition: New / 100%

1. Calculating Charging Time

To estimate the charging time, we can use the formula:

Charging Time (hours) = (Battery Capacity - Current Charge) / Charging Power

Step-by-Step Calculation

Assuming a median battery capacity of 350Wh and a charging power of 75W:

1. Battery Capacity: 350Wh
2. Current Charge: 20% of 350Wh = 70Wh
3. Energy Needed: 350Wh - 70Wh = 280Wh

Charging Time:

• Charging Time = 280Wh / 75W = 3.73 hours (approximately 3 hours and 44 minutes)

2. Charging Efficiency

Charging efficiency varies based on several factors, but for a new battery at room temperature, we can estimate:

• Efficiency Rate: 85% (common for lithium-ion batteries)

Effective Energy Input Required:

• Energy Input = Energy Needed / Efficiency
  = 280Wh / 0.85 = 329.41Wh

Conclusion on Charging Efficiency

• You will need approximately 329.41Wh of energy to fully charge your battery from 20% to 100%.

3. Temperature Effects

• Optimal Temperature: Room temperature (60-80°F) is ideal for charging lithium-ion batteries.
• Cold Temperatures (below 32°F): Can slow down the charging process and may cause battery damage if charged in extreme cold.
• High Temperatures (above 95°F): Can lead to overheating, reduced battery lifespan, and potential safety hazards.

4. Tips for Longevity

1. Charge to 80%: For longevity, consider charging only up to 80% of the battery capacity.
2. Avoid Full Discharge: Recharge before the battery drops below 20%.
3. Temperature Control: Charge in a temperature range of 60-80°F for optimal performance.

5. Power Cost Estimate

To estimate the cost of charging, we can use the following:

Cost = Energy Input (kWh) × Cost per kWh

Assuming an average electricity rate of $0.13 per kWh:

1. Energy Input Required: 329.41Wh = 0.32941 kWh
2. Cost:
   Cost = 0.32941 kWh × $0.13/kWh = $0.0428 (approximately 4.28 cents)

Final Summary

• Charging Time: Approximately 3 hours and 44 minutes
• Energy Input Required: 329.41Wh
• Cost to Charge: Approximately 4.28 cents

Brought to you by TheToolCollective.com

‍

Made by The Tool Collective team. We are a small group of multi-talented and diverse hobbyists creating unique and helpful decision tools to help those entering or sharing our passions or interests. E-Skateboards and Onewheels fit into the same realm as E-bikes for our team, which we are heavily invested in. They were a staple for many of us, especially in college, giving us an incredibly easy, and FUN, way to commute and travel around campus. This is an absolutely exploding industry, so we decided to put our knowledge together and create a big bunch of decision tools to help those entering the world of E-Skateboards and/or Onewheels.

‍

Made with The Tool Collective's signature model. We combine an AI engine which process the user's input choices and runs it through our specifically designed logic and reasoning parameters for that tool to curate a precise and organized output. An enthusiast knowledgeable in the tool category designs the tools inputs and input choices, writes custom logic parameters, and defines the output format and requirements. The AI engine powers the system and creates a lightning fast, highly intelligent decision tool, which is always up-to-date with current pricing and publicly available information on whatever the tool is designed for. Combines all of the internets resources into one.

‍