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Energy Storage
Design and Installation
Batteries and Storage
Solar + Storage

Battery Capacity - The Basis of Storage - Self Study

Christopher LaForge • Last updated 10/2023

4.5/5 (view ratings)
4568 students
1 module
40 minutes
6 assignments

Course description

Students who enroll in this lecture will:

  • Be able to properly define battery capacity
  • Define amp-hours and watt-hours
  • Learn about the active elements of a battery and how they affect capacity
  • Learn how battery capacity is measured
  • Learn what discharge rates are, how they affect capacity, and how to convert one rate to another
  • Encounter the vagaries of the Peukert constant

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Full course outline

Module 1 - Video, Resources, Call-In Information, and Questions

In this module, you'll watch the video lecture, check out the supporting resources, and download an MP3 recording of a 1-hour Q+A call with Christopher LaForge.

  • Battery Capacity - The Basis of Storage (39:42 minutes)
  • 1-hour Q+A Call Recording (.mp3)
  • Article: Energy Storage Basics for Solar PV by Christopher LaForge
  • Totally optional: iPhone App for taking this class (50 seconds)


Christopher LaForge

Certified Master Trainer (IREC), NABCEP Certified Photovoltaic Professional - Emeritus , Great Northern Solar

Christopher LaForge is the CEO of Great Northern Solar and a NABCEP certified photovoltaic installer-emeritus. He has been designing, specifying, and installing systems since 1988. He has been an instructor with the MREA since 1993 teaching Advanced Photovoltaic design and installation and is an ISPQ Affiliated Master Trainer. In 2016 he was named IREC's Master Trainer... Learn more


891 reviews

4,568 students have taken this course

by Eric Salamanca, Energy Analyst, Energy and Utilities Department, Turks and Caicos Islan... 11/07/2023

I appreciate this course, as it is very informative especially so that my background is in environment but transitioning to renewable energy. Thank you so much Sir.

by Jesse Delgado 10/22/2023

this section is a ' real eye opener ' explaining battery capacity and functionality in the relation to the types of batteries being used and in relation to variation of the use of different types of batteries in a wide range of scenarios.

by Ing. Edward Torkornoo 09/15/2023

I enjoyed the demonstrations, pictures, etc that he used to show us the real world use of these concepts. Well organized and clearly presented

by TIM RIGGS 01/23/2023


by Youcef Mortadji 12/17/2022

جميل جدا

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Frequently asked questions

How does this course work?

This is a free course. Enroll today and get access to all of the materials instantly. The lecture video and other materials are available any time.

How long do I have access to the materials?

For free courses there is no guarantee for how long the course materials will be available.

Is there a certificate of completion?

Certificates of completion are only provided to HeatSpring Membership subscribers. This course has not been approved by any credentialing organizations (NABCEP, AIA, USGBC etc) for Continuing Education Credits (CEUs). This course is for self education purposes only and completion does not indicate a level of professional expertise or credential.

Can I register multiple people?

Yes, this is a free course so you can share this page with other people from your team.

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