How much energy is stored in a battery?

If we want to calculate how much energy – in other words, how many watt-hours – is stored in a battery, we need information about the electric charge in the battery. This value is commonly expressed in amp-hours – amps (units of electric current) multiplied by hours (units of time) – see the hours calculator.

How many Wh/kg is a 1.5V battery?

Compare 1.5V battery types with technical specifications (200+ Wh/kg, IEC 62133 certified). Learn selection criteria for procurement teams, performance benchmarks & application-specific recommendations. Updated with 2025 industry standards.

What is the difference between battery capacity and battery energy?

Battery Capacity is usually given in amp-hours (Ah) or milliamp-hours (mAh). Battery Energy is the product of capacity and voltage, measured in joules or watt-hours (Wh). Ensure the battery voltage and current are within the operating limits of your device. Always use the actual working current (not peak or theoretical current) for better accuracy.

What are the components of a 1.5V battery?

A typical 1.5V battery consists of three primary components working in concert: Anode (Negative Terminal): Usually made from zinc in alkaline and zinc-carbon batteries or lithium in lithium batteries. This component undergoes oxidation during discharge, releasing electrons into the circuit.

How do I find out the capacity of a battery?

Let's assume you want to find out the capacity of your battery, knowing its voltage and the energy stored in it. Note down the voltage. In this example, we will take a standard 12 V battery. Choose the amount of energy stored in the battery. Let's say it's 26.4 Wh. Input these numbers into their respective fields of the battery amp hour calculator.

How does a battery energy calculator work?

The battery energy calculator uses a formula to determine the total energy stored in a battery based on its voltage, current, and time.