1. What is the 100Ah Lithium Battery Life Calculator?

The 100Ah Lithium Battery Life Calculator estimates how long a 100 amp-hour lithium battery will last based on the system voltage and power load. It helps in planning power systems for RVs, solar setups, marine applications, and off-grid systems.

2. How Does the Calculator Work?

The calculator uses the battery life formula:

Where:

• 100 — Battery capacity in amp-hours (Ah)
• Voltage — System voltage in volts (V)
• Load — Power consumption in watts (W)

Explanation: The formula converts amp-hours to watt-hours (by multiplying by voltage) then divides by load to determine runtime in hours.

3. Importance of Battery Life Calculation

Details: Accurate battery life estimation is crucial for designing reliable power systems, preventing unexpected power loss, and optimizing battery bank sizing.

4. Using the Calculator

Tips: Enter system voltage (typically 12V, 24V, or 48V for most applications) and your continuous power load in watts. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculator specific to lithium batteries?
A: While the formula works for any battery type, lithium batteries can typically use 80-90% of their rated capacity, unlike lead-acid which should only use 50%.

Q2: How does battery temperature affect the results?
A: Lithium battery capacity decreases in very cold temperatures. Below freezing, capacity can be reduced by 20-30%.

Q3: Should I include inverter efficiency?
A: For AC loads, multiply the load by 1.1 (for 90% efficient inverter) or 1.15 (for 85% efficient) to account for conversion losses.

Q4: What's the difference between Ah and Wh?
A: Amp-hours (Ah) measure charge capacity, while watt-hours (Wh) measure energy capacity (Ah × V = Wh). Wh accounts for voltage differences.

Q5: How accurate is this calculation?
A: It provides theoretical maximum. Real-world results vary due to temperature, battery age, discharge rate, and other factors.