{"id":5001,"date":"2025-08-13T08:10:03","date_gmt":"2025-08-13T08:10:03","guid":{"rendered":"https:\/\/holobattery.com\/?post_type=product&#038;p=5001"},"modified":"2026-09-21T20:11:07","modified_gmt":"2026-09-21T20:11:07","slug":"custom-12v-40ah-sodium-ion-battery-group-h7","status":"publish","type":"product","link":"https:\/\/holobattery.com\/product\/custom-12v-40ah-sodium-ion-battery-group-h7\/","title":{"rendered":"Custom 12V 40Ah Sodium Ion Start-Stop Battery (H7)"},"content":{"rendered":"<p>A 12V 40Ah sodium-ion starting battery for engine cranking and start-stop duty, replacing lead-acid in a smaller, lighter envelope. It carries 480 Wh of usable energy and delivers 120A continuous \u2014 a full 3C draw, with headroom for the surge loads motive duty demands.<\/p>\n<p>Charging at 40A brings it to full in roughly 1.5 hours. The operating window is -40~80\u00b0C on discharge and -20~50\u00b0C on charge. The pack measures 318 x 176 x 187 mm (Group Size H7) and weighs 7 kg.<\/p>\n<h3>Where it sits in the range<\/h3>\n<p>Within our 12V range this sits between the 30Ah and 42Ah builds. If your runtime target is tighter than expected once we model the duty cycle, the 42Ah configuration is the usual next step; if weight or envelope is the binding constraint, the 30Ah build is lighter.<\/p>\n<h3>What we customise<\/h3>\n<p>Case format, terminal position and polarity, cranking rating and cold-weather behaviour are specified per platform. BMS communication over CAN or RS485 is available where the vehicle expects it, with Bluetooth for diagnostics.<\/p>\n<h3>Common questions<\/h3>\n<p><strong>Will it work with our existing alternator and charging system?<\/strong><br \/>\nIn most cases, but voltage regulation matters. Send the charging voltage range and we confirm compatibility.<\/p>\n<p><strong>How does it behave in cold weather?<\/strong><br \/>\nCharging is limited at low temperature, which is the main difference from lead-acid. Tell us your minimum ambient and we discuss heating or chemistry options.<\/p>\n","protected":false},"excerpt":{"rendered":"<p dir=\"auto\" data-pm-slice=\"1 1 []\">This 12V 40Ah H7 automotive start-stop battery is engineered to exceed the performance of your original AGM battery.<\/p>\n","protected":false},"featured_media":5002,"template":"","meta":{"_seopress_titles_title":"Custom 12V 40Ah H7 Sodium Ion Start-Stop Battery (H7)","_seopress_titles_desc":"12V 40Ah sodium-ion start-stop battery in Group H7 size with 480 Wh energy and 120A discharge. Engineered to outperform your original AGM \u2013 free quote.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_members_access_role":[],"_members_access_error":""},"product_brand":[],"product_cat":[203],"product_tag":[],"class_list":["post-5001","product","type-product","status-publish","has-post-thumbnail","product_cat-sodium-ion-batteries","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/product\/5001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/media\/5002"}],"wp:attachment":[{"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/media?parent=5001"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/product_brand?post=5001"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/product_cat?post=5001"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/holobattery.com\/wp-json\/wp\/v2\/product_tag?post=5001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}