--- description: Ever wondered what C20 battery rating means? What is the purpose of these ratings? Find out all the answers and more. title: What Does C20 Battery Rating Mean? - Energy Theory image: https://energytheory.com/wp-content/uploads/2023/02/Depositphotos_36372223_XL.jpg --- Close Menu - [About](https://energytheory.com/about-us/) - [EV](https://energytheory.com/category/electric-vehicles/) - [FAQs](https://energytheory.com/category/faqs/) - [Glossary](https://energytheory.com/category/glossary/) - [Green](https://energytheory.com/category/green/) - [Renewable](https://energytheory.com/category/renewable/) - [Sustainable](https://energytheory.com/category/sustainable/) - [Energy Economy](https://energytheory.com/category/energy-economy/) - [Energy Services](https://energytheory.com/category/energy-services/) - [Solar](https://energytheory.com/category/solar/) - [Sustainable](https://energytheory.com/category/sustainable/) - [News](https://energytheory.com/category/latest-news/) - Language [![Energy Theory](https://energytheory.com/wp-content/uploads/2022/11/2e3rtgthghnm.png)](https://energytheory.com/ "Energy Theory") ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![es](https://cdn.gtranslate.net/flags/svg/es.svg) Spanish ![fr](https://cdn.gtranslate.net/flags/svg/fr.svg) French ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![it](https://cdn.gtranslate.net/flags/svg/it.svg) Italian ![zh-CN](https://cdn.gtranslate.net/flags/svg/zh-CN.svg) Chinese (Simplified) ![nl](https://cdn.gtranslate.net/flags/svg/nl.svg) Dutch ![fi](https://cdn.gtranslate.net/flags/svg/fi.svg) Finnish ![de](https://cdn.gtranslate.net/flags/svg/de.svg) German ![hi](https://cdn.gtranslate.net/flags/svg/hi.svg) Hindi ![ja](https://cdn.gtranslate.net/flags/svg/ja.svg) Japanese ![pl](https://cdn.gtranslate.net/flags/svg/pl.svg) Polish ![pt](https://cdn.gtranslate.net/flags/svg/pt.svg) Portuguese ![ru](https://cdn.gtranslate.net/flags/svg/ru.svg) Russian [![Energy Theory](https://energytheory.com/wp-content/uploads/2022/11/2e3rtgthghnm.png)](https://energytheory.com/ "Energy Theory") ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![es](https://cdn.gtranslate.net/flags/svg/es.svg) Spanish ![fr](https://cdn.gtranslate.net/flags/svg/fr.svg) French ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![it](https://cdn.gtranslate.net/flags/svg/it.svg) Italian ![zh-CN](https://cdn.gtranslate.net/flags/svg/zh-CN.svg) Chinese (Simplified) ![nl](https://cdn.gtranslate.net/flags/svg/nl.svg) Dutch ![fi](https://cdn.gtranslate.net/flags/svg/fi.svg) Finnish ![de](https://cdn.gtranslate.net/flags/svg/de.svg) German ![hi](https://cdn.gtranslate.net/flags/svg/hi.svg) Hindi ![ja](https://cdn.gtranslate.net/flags/svg/ja.svg) Japanese ![pl](https://cdn.gtranslate.net/flags/svg/pl.svg) Polish ![pt](https://cdn.gtranslate.net/flags/svg/pt.svg) Portuguese ![ru](https://cdn.gtranslate.net/flags/svg/ru.svg) Russian [Batteries](https://energytheory.com/category/batteries/) # What Does C20 Battery Rating Mean? By [Olivia Bolt](https://energytheory.com/author/olivia_bolt/)November 17, 20234 Mins Read ![JAN23What does c20 battery rating mean](https://energytheory.com/wp-content/uploads/2023/02/Depositphotos_36372223_XL-1024x683.jpg "What Does C20 Battery Rating Mean?") Gaston Plantש, a French physician invented the first rechargeable battery in 1859 that was based on lead acid. This system is still used in making batteries. Before this system, people were using primary batteries which cannot be recharged. Today, batteries have improved significantly. They come in different capacities and ratings like C20 battery rating. These ratings can be confusing. In this article, we will go over these ratings and also cover C20 and C10 batteries and their use. ## **What is C20 Battery Rating?** ![JAN23What does c20 battery rating mean](https://energytheory.com/wp-content/uploads/2023/02/Depositphotos_57763629_XL.jpg)A C20 battery rating means that with a **specific load attached** to the battery, it took 20 hours for it to get discharged. This type of rating means that the battery is a medium discharge. This is one of the most common ratings used for batteries in the solar industry. However, it is conditioned that the battery should not be completely discharged within 20 hours otherwise its battery life is affected. If your battery drains faster, it means less energy is available to use. ### **What is C10 in Battery?** As a matter of fact, the C rating decreases with an increase in the number of hours because there are internal power losses and wastage in the [battery](https://energytheory.com/do-i-need-a-fuse-between-battery-and-inverter/). A C10 rating is regarded as a fast discharge as batteries with a c10 rating will discharge over a **period of 10 hours**. The C rating is also a way of comparing batteries, especially the ones with the same output capacity. It is also an essential factor when choosing the battery because different appliances work with different battery ratings. ### **How Many Amps is C20? What is C20 Battery Capacity?** Amp Hour or C20 battery capacity indicates the amount of energy stored in a battery. It defines the amount of energy a battery can deliver continuously for 20 hours at 80°F without falling below **10.5 volts**. On international levels, a C20 battery has 16 Amps and in North America, it has 20 Amps. **Also See:** [How Many Amps Does a 100 Watt Solar Panel Produce](https://energytheory.com/how-many-amps-does-a-100-watt-solar-panel-produce/) ### **What is C20 Battery Charging Time? What is C20 Charging Rate?** C20 battery rating not only determines the discharging time of a battery but also indicates the charging time of a battery at a given voltage. For a given capacity, say c20 batteries, they are marked 20, which means they will reach the maximum Ah of battery within **20 hours.** The charging or discharging rate is determined by the amount of time a battery takes to fully discharge. Different batteries have a particular **set of restraints** and conditions that are related to their charging and discharging regimes. Also, some types of batteries require charging regimes and charge controllers. Therefore, the charging rate of a C20 battery is similar to its discharge rate. **Also Read**: [How Many Solar Panels and Batteries to Power a House](https://energytheory.com/how-many-solar-panels-and-batteries-to-power-a-house/) ### **What is C20 Battery Price?** C20 batteries are available in all forms and are used for various purposes. You can find C20 batteries in AA rechargeable batteries and in-car batteries too. However, their prices depend on the** purpose they serve and the brand they belong to.** Let’s understand this through these examples. - For [ 20 AA Rechargeable Batteries](https://www.walmart.com/ip/20-AA-Rechargeable-Batteries-NiMH-600mAh-1-2v-Garden-Solar-Ni-Mh-Light-LED-C20/751265290) NiMH 600mAh 1.2v Garden Solar Ni-Mh Light LED C20 batteries, you might need to pay around $14.99 - On the other hand, a [Replacement Battery For Computer ternacell](https://www.walmart.com/ip/Replacement-Battery-For-Computer-ternacell-B9670B-Omron-C120F-Series-C20-Series-Qty-10/448961811) B9670B, Omron C120F Series, and C20 Series can cost you anywhere around $134. ### **Can We Use C20 Battery for Solar Inverter?** C20-rated batteries with **7.5A charging** and discharging capacity are preferred for solar [inverters.](https://energytheory.com/8-best-3000-watt-inverter/) However, C5 batteries are more suitable for solar inverters connected to solar panels, if peak sun hours are 5-7 hours in a day. ### **Can You Use C10 Battery for Normal Inverter?** A battery rated with C10 provides more power over a **10-hour cycle**, and you can use it with a normal inverter as well. As long as your battery has enough capacity to meet the needs of your appliances, your system will work just fine. Well, after learning about the basics behind C20 battery rating and C10 battery ratings you can now easily distinguish between them. Can we use C20 battery for solar inverter? The answer to this is yes, you can use it for the solar inverter. However, it is always better to go with the advice of an installer as they know what is best for your solar panel system and its components. By the way, do you have a C20 battery for your solar inverter? If yes, we are awaiting your feedback and review for the same. **Recommended: **[3 Amorphous Solar Panels Advantages and Disadvantages](https://energytheory.com/3-amorphous-solar-panels-advantages-and-disadvantages/) Share. [Facebook](https://www.facebook.com/sharer.php?u=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F "Share on Facebook") [Twitter](https://twitter.com/intent/tweet?url=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F&text=What%20Does%20C20%20Battery%20Rating%20Mean%3F "Share on X (Twitter)") [Pinterest](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F&media=https%3A%2F%2Fenergytheory.com%2Fwp-content%2Fuploads%2F2023%2F02%2FDepositphotos_36372223_XL.jpg&description=What%20Does%20C20%20Battery%20Rating%20Mean%3F "Share on Pinterest") [LinkedIn](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F "Share on LinkedIn") [Tumblr](https://www.tumblr.com/share/link?url=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F&name=What%20Does%20C20%20Battery%20Rating%20Mean%3F "Share on Tumblr") [Telegram](https://t.me/share/url?url=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F&title=What%20Does%20C20%20Battery%20Rating%20Mean%3F "Share on Telegram") [Email](mailto:?subject=What%20Does%20C20%20Battery%20Rating%20Mean%3F&body=https%3A%2F%2Fenergytheory.com%2Fwhat-does-c20-battery-rating-mean%2F "Share via Email") ![mm](https://energytheory.com/wp-content/uploads/2023/04/Olivia-150x150.jpg) [Olivia Bolt](https://energytheory.com/author/olivia_bolt/) Olivia is committed to green energy and works to help ensure our planet's long-term habitability. She takes part in environmental conservation by recycling and avoiding single-use plastic. #### Related Posts [![Why is There So Much Fear Surrounding LiPo Batteries](https://energytheory.com/wp-content/uploads/2024/09/lipo-batteries-fear-300x200.webp "Why is There So Much Fear Surrounding LiPo Batteries?")](https://energytheory.com/why-is-there-so-much-fear-surrounding-lipo-batteries/ "Why is There So Much Fear Surrounding LiPo Batteries?") #### [Why is There So Much Fear Surrounding LiPo Batteries?](https://energytheory.com/why-is-there-so-much-fear-surrounding-lipo-batteries/) September 11, 2024 [![What is the Difference Between VCC, VDD, VEE, and VSS?](https://energytheory.com/wp-content/uploads/2024/09/VCC-300x200.webp "What is the Difference Between VCC, VDD, VEE, and VSS")](https://energytheory.com/what-is-the-difference-between-vcc-vdd-vee-and-vss/ "What is the Difference Between VCC, VDD, VEE, and VSS") #### [What is the Difference Between VCC, VDD, VEE, and VSS](https://energytheory.com/what-is-the-difference-between-vcc-vdd-vee-and-vss/) September 10, 2024 [![](https://energytheory.com/wp-content/uploads/2024/07/Giant-Energy-Storage-in-Carbon-Nanotube-Ropes-than-Lithium-Batteries-300x200.png "Giant Energy Storage in Carbon Nanotube Ropes than Lithium Batteries, says research")](https://energytheory.com/giant-energy-storage-in-carbon-nanotube-ropes-than-lithium-batteries-says-research/ "Giant Energy Storage in Carbon Nanotube Ropes than Lithium Batteries, says research") #### [Giant Energy Storage in Carbon Nanotube Ropes than Lithium Batteries, says research](https://energytheory.com/giant-energy-storage-in-carbon-nanotube-ropes-than-lithium-batteries-says-research/) July 30, 2024 Add A Comment Leave A Reply [Cancel Reply](https://energytheory.com/what-does-c20-battery-rating-mean/#respond) Save my name, email, and website in this browser for the next time I comment. Submit Type above and press *Enter* to search. Press *Esc* to cancel. ```json {"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#article","isPartOf":{"@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/"},"author":{"name":"Olivia Bolt","@id":"https:\/\/energytheory.com\/#\/schema\/person\/b13704b48c0839ab40218296652c13b8"},"headline":"What Does C20 Battery Rating Mean?","datePublished":"2023-02-06T18:01:48+00:00","dateModified":"2023-11-17T13:46:21+00:00","mainEntityOfPage":{"@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/"},"wordCount":760,"commentCount":0,"publisher":{"@id":"https:\/\/energytheory.com\/#organization"},"image":{"@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#primaryimage"},"thumbnailUrl":"https:\/\/energytheory.com\/wp-content\/uploads\/2023\/02\/Depositphotos_36372223_XL.jpg","keywords":["C10 Battery","C20 Battery","C20 Battery Capacity","C20 Battery Charging Time","C20 Battery Price","C20 Battery Rating","C20 Charging Rate"],"articleSection":["Batteries","FAQs"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/","url":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/","name":"What Does C20 Battery Rating Mean? - Energy Theory","isPartOf":{"@id":"https:\/\/energytheory.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#primaryimage"},"image":{"@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#primaryimage"},"thumbnailUrl":"https:\/\/energytheory.com\/wp-content\/uploads\/2023\/02\/Depositphotos_36372223_XL.jpg","datePublished":"2023-02-06T18:01:48+00:00","dateModified":"2023-11-17T13:46:21+00:00","description":"Ever wondered what C20 battery rating means? What is the purpose of these ratings? Find out all the answers and more.","breadcrumb":{"@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#primaryimage","url":"https:\/\/energytheory.com\/wp-content\/uploads\/2023\/02\/Depositphotos_36372223_XL.jpg","contentUrl":"https:\/\/energytheory.com\/wp-content\/uploads\/2023\/02\/Depositphotos_36372223_XL.jpg","width":1200,"height":800,"caption":"JAN23What does c20 battery rating mean"},{"@type":"BreadcrumbList","@id":"https:\/\/energytheory.com\/what-does-c20-battery-rating-mean\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/energytheory.com\/"},{"@type":"ListItem","position":2,"name":"Storage","item":"https:\/\/energytheory.com\/category\/storage\/"},{"@type":"ListItem","position":3,"name":"What Does C20 Battery Rating Mean?"}]},{"@type":"WebSite","@id":"https:\/\/energytheory.com\/#website","url":"https:\/\/energytheory.com\/","name":"Energy Theory","description":"Conserve energy to preserve future","publisher":{"@id":"https:\/\/energytheory.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/energytheory.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/energytheory.com\/#organization","name":"Energy Theory","url":"https:\/\/energytheory.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/energytheory.com\/#\/schema\/logo\/image\/","url":"https:\/\/energytheory.com\/wp-content\/uploads\/2022\/11\/2e3rtgthghnm.png","contentUrl":"https:\/\/energytheory.com\/wp-content\/uploads\/2022\/11\/2e3rtgthghnm.png","width":625,"height":57,"caption":"Energy Theory"},"image":{"@id":"https:\/\/energytheory.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/energytheoryco"]},{"@type":"Person","@id":"https:\/\/energytheory.com\/#\/schema\/person\/b13704b48c0839ab40218296652c13b8","name":"Olivia Bolt","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/e44b6048cc46ab5ff090bb0f7eab60cc3364aba06f873623f727e8a9215b302a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/e44b6048cc46ab5ff090bb0f7eab60cc3364aba06f873623f727e8a9215b302a?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/e44b6048cc46ab5ff090bb0f7eab60cc3364aba06f873623f727e8a9215b302a?s=96&d=mm&r=g","caption":"Olivia Bolt"},"description":"Olivia is committed to green energy and works to help ensure our planet's long-term habitability. She takes part in environmental conservation by recycling and avoiding single-use plastic.","url":"https:\/\/energytheory.com\/author\/olivia_bolt\/"}]} ```