{"id":1923,"date":"2026-07-06T09:53:30","date_gmt":"2026-07-06T09:53:30","guid":{"rendered":"https:\/\/www.batteryone.co\/blog\/?p=1923"},"modified":"2026-07-06T09:53:30","modified_gmt":"2026-07-06T09:53:30","slug":"roomba-irobot-1800li-li-ion-battery-full-specifications-diy-guide","status":"publish","type":"post","link":"https:\/\/www.batteryone.co\/blog\/archives\/1923","title":{"rendered":"Roomba iRobot 1800LI Li-Ion Battery: Full Specifications &amp; DIY Guide"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The&nbsp;<a href=\"https:\/\/www.batteryone.co\/detail\/1744113\/1800LI\">iRobot 1800LI<\/a>&nbsp;is a popular lithium-ion battery designed for a variety of Roomba robot vacuum models. It provides reliable power for daily cleaning tasks and serves as a direct replacement for aging or depleted batteries in compatible robots.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-1024x768.jpg\" alt=\"\" class=\"wp-image-1924\" srcset=\"https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-1024x768.jpg 1024w, https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-300x225.jpg 300w, https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-768x576.jpg 768w, https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-1536x1152.jpg 1536w, https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-2048x1536.jpg 2048w, https:\/\/www.batteryone.co\/blog\/wp-content\/uploads\/2026\/07\/iRobot-675-400x300.jpg 400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Battery Specifications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 1800LI is a 14.4V Lithium-Ion (Li-Ion) battery with a nominal capacity of 1800mAh (approximately 26Wh). It features a compact size, measuring about 1.8 inches high and 5.5 inches wide, and weighs around 1.45 pounds. It utilizes a plug-and-play design with locking tabs to ensure a secure installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong>&nbsp;Third-party replacement batteries often offer higher capacities, but you must always verify the voltage and battery type to avoid incompatibility issues.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Compatible Roomba Models<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The&nbsp;<a href=\"note: Third-party replacement batteries often offer higher capacities, but you must always verify the voltage and battery type to avoid incompatibility issues.\">1800LI battery<\/a>&nbsp;is primarily suitable for Roomba robots that use lithium-ion batteries, specifically within the 600, 800, and 900 series. The main compatible models include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>600 Series:<\/strong>\u00a0614, 615, 640, 652, 665, 670, 671, 675, 677, 680, 685, 690, 695 (and similar models)<\/li>\n\n\n\n<li><strong>800 Series:<\/strong>\u00a0801, 805, 850, 860, 877, 890, 891, 895<\/li>\n\n\n\n<li><strong>900 Series:<\/strong>\u00a0960, 965, 966<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This product is not compatible with older 500, 600, or 700 series NiMH (Nickel-Metal Hydride) models that use XLife or other older battery packs. It is also incompatible with newer e, i, j, or Combo series models that require proprietary batteries. Before purchasing a replacement, always check your Roomba&#8217;s model manual or battery compartment to confirm compatibility.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Replace the Battery<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Replacing the 1800LI battery is a straightforward DIY process that takes only 5 to 10 minutes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Required tool:<\/strong>&nbsp;A Phillips screwdriver.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Flip the robot:<\/strong>\u00a0Turn your Roomba upside down on a flat surface.<\/li>\n\n\n\n<li><strong>Remove the brush:<\/strong>\u00a0Remove the side edge-sweeping brush if your model is equipped with one.<\/li>\n\n\n\n<li><strong>Open the compartment:<\/strong>\u00a0Loosen the screws securing the bottom cover and keep them in a safe place.<\/li>\n\n\n\n<li><strong>Expose the battery:<\/strong>\u00a0Remove the bottom cover to reveal the battery compartment.<\/li>\n\n\n\n<li><strong>Extract the old battery:<\/strong>\u00a0Press the release tabs or gently pull the fabric tabs on the old battery to lift it out.<\/li>\n\n\n\n<li><strong>Insert the new battery:<\/strong>\u00a0Slide the new 1800LI battery in, aligning it with all slots or tabs. Make sure the label faces up and you hear it click into place.<\/li>\n\n\n\n<li><strong>Reassemble:<\/strong>\u00a0Put the bottom cover back on, tighten all screws evenly, and reinstall the edge-sweeping brush if you removed it earlier.<\/li>\n\n\n\n<li><strong>Charge and test:<\/strong>\u00a0Place the Roomba on its charger and let it charge fully before use. Test the robot to ensure it is working properly.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing the right&nbsp;<a href=\"note: Third-party replacement batteries often offer higher capacities, but you must always verify the voltage and battery type to avoid incompatibility issues.\">1800LI replacement battery<\/a>&nbsp;can significantly extend your Roomba&#8217;s lifespan without the need to buy a brand-new vacuum. Regular maintenance, such as cleaning the charging contacts, will help maximize battery performance over time.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The&nbsp;iRobot 1800LI&nbsp;is a popular lithium-ion battery designed for a variety of Roomba robot vacuum models. It provides reliable power for daily cleaning tasks and serves as a direct replacement for aging or depleted batteries in compatible robots. Battery Specifications The 1800LI is a 14.4V Lithium-Ion (Li-Ion) battery with a nominal capacity of 1800mAh (approximately 26Wh). [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,11],"tags":[218],"class_list":["post-1923","post","type-post","status-publish","format-standard","hentry","category-batteries","category-guide","tag-roomba"],"_links":{"self":[{"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/posts\/1923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/comments?post=1923"}],"version-history":[{"count":1,"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/posts\/1923\/revisions"}],"predecessor-version":[{"id":1925,"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/posts\/1923\/revisions\/1925"}],"wp:attachment":[{"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/media?parent=1923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/categories?post=1923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.batteryone.co\/blog\/wp-json\/wp\/v2\/tags?post=1923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}